def stop_max_activations():
""" Stop Max Activations Job """
job = job_from_request()
args = flask.request.args
job_id = args["gradient_ascent_id"]
scheduler.abort_job(job_id)
return flask.jsonify({"status": "success"}), 200
def image_classification_model_classify_one():
"""
Classify one image and return the top 5 classifications
Returns JSON when requested: {predictions: {category: confidence,...}}
"""
job = job_from_request()
image = None
if "image_url" in flask.request.form and flask.request.form["image_url"]:
image = utils.image.load_image(flask.request.form["image_url"])
elif "image_file" in flask.request.files and flask.request.files["image_file"]:
outfile = tempfile.mkstemp(suffix=".bin")
flask.request.files["image_file"].save(outfile[1])
image = utils.image.load_image(outfile[1])
os.close(outfile[0])
os.remove(outfile[1])
else:
raise werkzeug.exceptions.BadRequest("must provide image_url or image_file")
# resize image
db_task = job.train_task().dataset.train_db_task()
height = db_task.image_dims[0]
width = db_task.image_dims[1]
if job.train_task().crop_size:
height = job.train_task().crop_size
width = job.train_task().crop_size
image = utils.image.resize_image(
image, height, width, channels=db_task.image_dims[2], resize_mode=db_task.resize_mode
)
epoch = None
if "snapshot_epoch" in flask.request.form:
epoch = float(flask.request.form["snapshot_epoch"])
layers = "none"
if "show_visualizations" in flask.request.form and flask.request.form["show_visualizations"]:
layers = "all"
predictions, visualizations = None, None
try:
predictions, visualizations = job.train_task().infer_one(image, snapshot_epoch=epoch, layers=layers)
except frameworks.errors.InferenceError as e:
return e.__str__(), 403
# take top 5
if predictions:
predictions = [(p[0], round(100.0 * p[1], 2)) for p in predictions[:5]]
if request_wants_json():
return flask.jsonify({"predictions": predictions})
else:
return flask.render_template(
"models/images/classification/classify_one.html",
job=job,
image_src=utils.image.embed_image_html(image),
predictions=predictions,
visualizations=visualizations,
total_parameters=sum(v["param_count"] for v in visualizations if v["vis_type"] == "Weights"),
)
def generic_image_dataset_summary():
"""
Return a short HTML summary of a DatasetJob
"""
job = job_from_request()
return flask.render_template('datasets/images/generic/summary.html', dataset=job)
def image_classification_model_large_graph():
"""
Show the loss/accuracy graph, but bigger
"""
job = job_from_request()
return flask.render_template("models/images/classification/large_graph.html", job=job)
def large_graph():
"""
Show the loss/accuracy graph, but bigger
"""
job = job_from_request()
return flask.render_template('models/large_graph.html', job=job)
def generic_image_model_infer_one():
"""
Infer one image
"""
job = job_from_request()
image = None
if 'image_url' in flask.request.form and flask.request.form['image_url']:
image = utils.image.load_image(flask.request.form['image_url'])
elif 'image_file' in flask.request.files and flask.request.files[
'image_file']:
outfile = tempfile.mkstemp(suffix='.bin')
flask.request.files['image_file'].save(outfile[1])
image = utils.image.load_image(outfile[1])
os.close(outfile[0])
os.remove(outfile[1])
else:
raise werkzeug.exceptions.BadRequest(
'must provide image_url or image_file')
# resize image
db_task = job.train_task().dataset.analyze_db_tasks()[0]
height = db_task.image_height
width = db_task.image_width
if job.train_task().crop_size:
height = job.train_task().crop_size
width = job.train_task().crop_size
image = utils.image.resize_image(
image,
height,
width,
channels=db_task.image_channels,
resize_mode='squash',
)
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
layers = 'none'
if 'show_visualizations' in flask.request.form and flask.request.form[
'show_visualizations']:
layers = 'all'
outputs, visualizations = job.train_task().infer_one(image,
snapshot_epoch=epoch,
layers=layers)
if request_wants_json():
return flask.jsonify({
'outputs':
dict((name, blob.tolist()) for name, blob in outputs.iteritems())
})
else:
return flask.render_template(
'models/images/generic/infer_one.html',
image_src=utils.image.embed_image_html(image),
network_outputs=outputs,
visualizations=visualizations,
)
def image_classification_dataset_summary():
"""
Return a short HTML summary of a DatasetJob
"""
job = job_from_request()
return flask.render_template('datasets/images/classification/summary.html', dataset=job)
def image_classification_dataset_summary():
"""
Return a short HTML summary of a DatasetJob
"""
job = job_from_request()
return flask.render_template("datasets/images/classification/summary.html", dataset=job)
def summary():
"""
Return a short HTML summary of a DatasetJob
"""
job = job_from_request()
return flask.render_template('datasets/images/generic/summary.html', dataset=job)
def image_classification_model_large_graph():
"""
Show the loss/accuracy graph, but bigger
"""
job = job_from_request()
return flask.render_template('models/images/classification/large_graph.html', job=job)
def generic_image_model_large_graph():
"""
Show the loss/accuracy graph, but bigger
"""
job = job_from_request()
return flask.render_template("models/images/generic/large_graph.html", job=job)
def feature_extraction_model_large_graph():
"""
Show the loss/accuracy graph, but bigger
"""
job = job_from_request()
workspace = get_workspace_details(flask.request.url)
return flask.render_template('models/images/extraction/large_graph.html', job=job, workspace = workspace)
def timeline_tracing():
"""
Shows timeline trace of a model
"""
job = job_from_request()
return flask.render_template('models/timeline_tracing.html', job=job)
def image_classification_model_classify_one():
"""
Classify one image and return the top 5 classifications
Returns JSON when requested: {predictions: {category: confidence,...}}
"""
job = job_from_request()
image = None
if 'image_url' in flask.request.form and flask.request.form['image_url']:
image = utils.image.load_image(flask.request.form['image_url'])
elif 'image_file' in flask.request.files and flask.request.files[
'image_file']:
outfile = tempfile.mkstemp(suffix='.bin')
flask.request.files['image_file'].save(outfile[1])
image = utils.image.load_image(outfile[1])
os.close(outfile[0])
os.remove(outfile[1])
else:
raise werkzeug.exceptions.BadRequest(
'must provide image_url or image_file')
# resize image
db_task = job.train_task().dataset.train_db_task()
height = db_task.image_dims[0]
width = db_task.image_dims[1]
if job.train_task().crop_size:
height = job.train_task().crop_size
width = job.train_task().crop_size
image = utils.image.resize_image(
image,
height,
width,
channels=db_task.image_dims[2],
resize_mode=db_task.resize_mode,
)
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
layers = 'none'
if 'show_visualizations' in flask.request.form and flask.request.form[
'show_visualizations']:
layers = 'all'
predictions, visualizations = job.train_task().infer_one(
image, snapshot_epoch=epoch, layers=layers)
# take top 5
predictions = [(p[0], round(100.0 * p[1], 2)) for p in predictions[:5]]
if request_wants_json():
return flask.jsonify({'predictions': predictions})
else:
return flask.render_template(
'models/images/classification/classify_one.html',
image_src=utils.image.embed_image_html(image),
predictions=predictions,
visualizations=visualizations,
)
def generic_image_model_infer_many():
"""
Infer many images
"""
job = job_from_request()
image_list = flask.request.files.get("image_list")
if not image_list:
raise werkzeug.exceptions.BadRequest("image_list is a required field")
epoch = None
if "snapshot_epoch" in flask.request.form:
epoch = float(flask.request.form["snapshot_epoch"])
paths = []
images = []
db_task = job.train_task().dataset.analyze_db_tasks()[0]
height = db_task.image_height
width = db_task.image_width
channels = db_task.image_channels
for line in image_list.readlines():
line = line.strip()
if not line:
continue
path = None
# might contain a numerical label at the end
match = re.match(r"(.*\S)\s+\d+$", line)
if match:
path = match.group(1)
else:
path = line
try:
image = utils.image.load_image(path)
image = utils.image.resize_image(image, height, width, channels=channels, resize_mode="squash")
paths.append(path)
images.append(image)
except utils.errors.LoadImageError as e:
print e
if not len(images):
raise werkzeug.exceptions.BadRequest("Unable to load any images from the file")
outputs = job.train_task().infer_many(images, snapshot_epoch=epoch)
if outputs is None:
raise RuntimeError("An error occured while processing the images")
if request_wants_json():
result = {}
for i, path in enumerate(paths):
result[path] = dict((name, blob[i].tolist()) for name, blob in outputs.iteritems())
return flask.jsonify({"outputs": result})
else:
return flask.render_template(
"models/images/generic/infer_many.html", job=job, paths=paths, network_outputs=outputs
)
def timeline_trace_data():
"""
Shows timeline trace of a model
"""
job = job_from_request()
step = get_request_arg('step')
if step is None:
raise werkzeug.exceptions.BadRequest('step is a required field')
return job.train_task().timeline_trace(int(step))
def timeline_trace_data():
"""
Shows timeline trace of a model
"""
job = job_from_request()
step = get_request_arg('step')
if step is None:
raise werkzeug.exceptions.BadRequest('step is a required field')
return job.train_task().timeline_trace(int(step))
def image_classification_model_classify_one():
"""
Classify one image and return the top 5 classifications
Returns JSON when requested: {predictions: {category: confidence,...}}
"""
job = job_from_request()
image = None
if 'image_url' in flask.request.form and flask.request.form['image_url']:
image = utils.image.load_image(flask.request.form['image_url'])
elif 'image_file' in flask.request.files and flask.request.files['image_file']:
outfile = tempfile.mkstemp(suffix='.bin')
flask.request.files['image_file'].save(outfile[1])
image = utils.image.load_image(outfile[1])
os.close(outfile[0])
os.remove(outfile[1])
else:
raise werkzeug.exceptions.BadRequest('must provide image_url or image_file')
# resize image
db_task = job.train_task().dataset.train_db_task()
height = db_task.image_dims[0]
width = db_task.image_dims[1]
if job.train_task().crop_size:
height = job.train_task().crop_size
width = job.train_task().crop_size
image = utils.image.resize_image(image, height, width,
channels = db_task.image_dims[2],
resize_mode = db_task.resize_mode,
)
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
layers = 'none'
if 'show_visualizations' in flask.request.form and flask.request.form['show_visualizations']:
layers = 'all'
predictions, visualizations = None, None
predictions, visualizations = job.train_task().infer_one(image, snapshot_epoch=epoch, layers=layers)
# take top 5
if predictions:
predictions = [(p[0], round(100.0*p[1],2)) for p in predictions[:5]]
if request_wants_json():
return flask.jsonify({'predictions': predictions})
else:
return flask.render_template('models/images/classification/classify_one.html',
job = job,
image_src = utils.image.embed_image_html(image),
predictions = predictions,
visualizations = visualizations,
total_parameters= sum(v['param_count'] for v in visualizations if v['vis_type'] == 'Weights'),
)
def explore():
"""
Returns a gallery consisting of the images of one of the dbs
"""
job = job_from_request()
# Get LMDB
db = job.path(flask.request.args.get('db'))
db_path = job.path(db)
labels = []
if COLOR_PALETTE_ATTRIBUTE in job.extension_userdata:
# assume single-channel 8-bit palette
palette = job.extension_userdata[COLOR_PALETTE_ATTRIBUTE]
palette = np.array(palette).reshape((len(palette)/3,3)) / 255.
# normalize input pixels to [0,1]
norm = mpl.colors.Normalize(vmin=0,vmax=255)
# create map
cmap = mpl.pyplot.cm.ScalarMappable(norm=norm,
cmap=mpl.colors.ListedColormap(palette))
else:
cmap = None
page = int(flask.request.args.get('page', 0))
size = int(flask.request.args.get('size', 25))
reader = DbReader(db_path)
count = 0
imgs = []
min_page = max(0, page - 5)
total_entries = reader.total_entries
max_page = min((total_entries-1) / size, page + 5)
pages = range(min_page, max_page + 1)
for key, value in reader.entries():
if count >= page*size:
datum = caffe_pb2.Datum()
datum.ParseFromString(value)
if not datum.encoded:
raise RuntimeError("Expected encoded database")
s = StringIO()
s.write(datum.data)
s.seek(0)
img = PIL.Image.open(s)
if cmap and img.mode in ['L', '1']:
data = np.array(img)
data = cmap.to_rgba(data)*255
data = data.astype('uint8')
# keep RGB values only, remove alpha channel
data = data[:, :, 0:3]
img = PIL.Image.fromarray(data)
imgs.append({"label": None, "b64": utils.image.embed_image_html(img)})
count += 1
if len(imgs) >= size:
break
return flask.render_template('datasets/images/explore.html', page=page, size=size, job=job, imgs=imgs, labels=None, pages=pages, label=None, total_entries=total_entries, db=db)
def remove_max_activations():
""" Deletes Max Activations Dataset pertaining to specified layer in job """
job = job_from_request()
args = flask.request.args
layer_name = args["layer_name"]
if os.path.isfile(job.get_max_activations_path()):
f = h5py.File(job.get_max_activations_path(), 'a')
if layer_name in f:
del f[layer_name]
return flask.jsonify({"status": "success"}), 200
return flask.jsonify({"status": "error"}), 500
def summary():
"""
Return a short HTML summary of a DatasetJob
"""
job = job_from_request()
if isinstance(job, dataset_images.ImageClassificationDatasetJob):
return dataset_images.classification.views.summary(job)
elif isinstance(job, dataset_images.GenericImageDatasetJob):
return dataset_images.generic.views.summary(job)
elif isinstance(job, generic.GenericDatasetJob):
return generic.views.summary(job)
else:
raise werkzeug.exceptions.BadRequest('Invalid job type')
def explore():
"""
Returns a gallery consisting of the images of one of the dbs
"""
job = job_from_request()
# Get LMDB
db = job.path(flask.request.args.get('db'))
db_path = job.path(db)
labels = []
page = int(flask.request.args.get('page', 0))
size = int(flask.request.args.get('size', 25))
reader = DbReader(db_path)
count = 0
imgs = []
min_page = max(0, page - 5)
total_entries = reader.total_entries
max_page = min((total_entries - 1) / size, page + 5)
pages = range(min_page, max_page + 1)
for key, value in reader.entries():
if count >= page * size:
datum = caffe_pb2.Datum()
datum.ParseFromString(value)
if not datum.encoded:
raise RuntimeError("Expected encoded database")
s = StringIO()
s.write(datum.data)
s.seek(0)
img = PIL.Image.open(s)
imgs.append({
"label": None,
"b64": utils.image.embed_image_html(img)
})
count += 1
if len(imgs) >= size:
break
return flask.render_template('datasets/images/explore.html',
page=page,
size=size,
job=job,
imgs=imgs,
labels=None,
pages=pages,
label=None,
total_entries=total_entries,
db=db)
def generic_image_model_infer_one():
"""
Infer one image
"""
job = job_from_request()
image = None
if 'image_url' in flask.request.form and flask.request.form['image_url']:
image = utils.image.load_image(flask.request.form['image_url'])
elif 'image_file' in flask.request.files and flask.request.files['image_file']:
outfile = tempfile.mkstemp(suffix='.bin')
flask.request.files['image_file'].save(outfile[1])
image = utils.image.load_image(outfile[1])
os.close(outfile[0])
os.remove(outfile[1])
else:
raise werkzeug.exceptions.BadRequest('must provide image_url or image_file')
# resize image
db_task = job.train_task().dataset.analyze_db_tasks()[0]
height = db_task.image_height
width = db_task.image_width
if job.train_task().crop_size:
height = job.train_task().crop_size
width = job.train_task().crop_size
image = utils.image.resize_image(image, height, width,
channels = db_task.image_channels,
resize_mode = 'squash',
)
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
layers = 'none'
if 'show_visualizations' in flask.request.form and flask.request.form['show_visualizations']:
layers = 'all'
outputs, visualizations = job.train_task().infer_one(image, snapshot_epoch=epoch, layers=layers)
if request_wants_json():
return flask.jsonify({'outputs': dict((name, blob.tolist()) for name,blob in outputs.iteritems())})
else:
return flask.render_template('models/images/generic/infer_one.html',
job = job,
image_src = utils.image.embed_image_html(image),
network_outputs = outputs,
visualizations = visualizations,
total_parameters= sum(v['param_count'] for v in visualizations if v['vis_type'] == 'Weights'),
)
def top_n():
"""
Classify many images and show the top N images per category by confidence
"""
model_job = job_from_request()
image_list = flask.request.files['image_list']
if not image_list:
raise werkzeug.exceptions.BadRequest('File upload not found')
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
if 'top_n' in flask.request.form and flask.request.form['top_n'].strip():
top_n = int(flask.request.form['top_n'])
else:
top_n = 9
if 'image_folder' in flask.request.form and flask.request.form['image_folder'].strip():
image_folder = flask.request.form['image_folder']
if not os.path.exists(image_folder):
raise werkzeug.exceptions.BadRequest('image_folder "%s" does not exit' % image_folder)
else:
image_folder = None
if 'num_test_images' in flask.request.form and flask.request.form['num_test_images'].strip():
num_test_images = int(flask.request.form['num_test_images'])
else:
num_test_images = None
paths, _ = read_image_list(image_list, image_folder, num_test_images)
# create inference job
inference_job = ImageInferenceTopNJob(
username = utils.auth.get_username(),
name = "TopN Image Classification",
model = model_job,
images = paths,
epoch = epoch,
layers = 'none',
top_n = top_n,
)
# schedule tasks
scheduler.add_job(inference_job)
if request_wants_json():
return flask.jsonify(inference_job.json_dict())
else:
return flask.redirect(flask.url_for('digits.inference.views.show', job_id=inference_job.id()))
def image_classification_model_classify_one():
"""
Classify one image and return the top 5 classifications
Returns JSON when requested: {predictions: {category: confidence,...}}
"""
job = job_from_request()
image = None
if "image_url" in flask.request.form and flask.request.form["image_url"]:
image = utils.image.load_image(flask.request.form["image_url"])
elif "image_file" in flask.request.files and flask.request.files["image_file"]:
with tempfile.NamedTemporaryFile() as outfile:
flask.request.files["image_file"].save(outfile.name)
image = utils.image.load_image(outfile.name)
else:
raise werkzeug.exceptions.BadRequest("must provide image_url or image_file")
# resize image
db_task = job.train_task().dataset.train_db_task()
height = db_task.image_dims[0]
width = db_task.image_dims[1]
if job.train_task().crop_size:
height = job.train_task().crop_size
width = job.train_task().crop_size
image = utils.image.resize_image(
image, height, width, channels=db_task.image_dims[2], resize_mode=db_task.resize_mode
)
epoch = None
if "snapshot_epoch" in flask.request.form:
epoch = float(flask.request.form["snapshot_epoch"])
layers = "none"
if "show_visualizations" in flask.request.form and flask.request.form["show_visualizations"]:
layers = "all"
predictions, visualizations = job.train_task().infer_one(image, snapshot_epoch=epoch, layers=layers)
# take top 5
predictions = [(p[0], round(100.0 * p[1], 2)) for p in predictions[:5]]
if request_wants_json():
return flask.jsonify({"predictions": predictions})
else:
return flask.render_template(
"models/images/classification/classify_one.html",
image_src=utils.image.embed_image_html(image),
predictions=predictions,
visualizations=visualizations,
)
def classify_many():
"""
Start a new classify_may job
"""
# kicking off a new inference job
model_job = job_from_request()
image_list = flask.request.files.get('image_list')
if not image_list:
raise werkzeug.exceptions.BadRequest('image_list is a required field')
if 'image_folder' in flask.request.form and flask.request.form['image_folder'].strip():
image_folder = flask.request.form['image_folder']
if not os.path.exists(image_folder):
raise werkzeug.exceptions.BadRequest('image_folder "%s" does not exit' % image_folder)
else:
image_folder = None
if 'num_test_images' in flask.request.form and flask.request.form['num_test_images'].strip():
num_test_images = int(flask.request.form['num_test_images'])
else:
num_test_images = None
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
paths, ground_truths = read_image_list(image_list, image_folder, num_test_images)
# create inference job
inference_job = ImageInferenceClassifyManyJob(
username = utils.auth.get_username(),
name = "Classify Many Images",
model = model_job,
images = paths,
epoch = epoch,
layers = 'none',
ground_truths = ground_truths,
)
# schedule tasks
scheduler.add_job(inference_job)
if request_wants_json():
return flask.jsonify(inference_job.json_dict())
else:
return flask.redirect(flask.url_for('digits.inference.views.show', job_id=inference_job.id()))
def generic_image_model_infer_one():
"""
Infer one image
"""
job = job_from_request()
image = None
if 'image_url' in flask.request.form and flask.request.form['image_url']:
image = utils.image.load_image(flask.request.form['image_url'])
elif 'image_file' in flask.request.files and flask.request.files['image_file']:
with tempfile.NamedTemporaryFile() as outfile:
flask.request.files['image_file'].save(outfile.name)
image = utils.image.load_image(outfile.name)
else:
raise werkzeug.exceptions.BadRequest('must provide image_url or image_file')
# resize image
db_task = job.train_task().dataset.analyze_db_tasks()[0]
height = db_task.image_height
width = db_task.image_width
if job.train_task().crop_size:
height = job.train_task().crop_size
width = job.train_task().crop_size
image = utils.image.resize_image(image, height, width,
channels = db_task.image_channels,
resize_mode = 'squash',
)
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
layers = 'none'
if 'show_visualizations' in flask.request.form and flask.request.form['show_visualizations']:
layers = 'all'
outputs, visualizations = job.train_task().infer_one(image, snapshot_epoch=epoch, layers=layers)
if request_wants_json():
return flask.jsonify({'outputs': dict((name, blob.tolist()) for name,blob in outputs.iteritems())})
else:
return flask.render_template('models/images/generic/infer_one.html',
image_src = utils.image.embed_image_html(image),
network_outputs = outputs,
visualizations = visualizations,
)
def generic_image_model_infer_one():
"""
Infer one image
"""
job = job_from_request()
image = None
if "image_url" in flask.request.form and flask.request.form["image_url"]:
image = utils.image.load_image(flask.request.form["image_url"])
elif "image_file" in flask.request.files and flask.request.files["image_file"]:
outfile = tempfile.mkstemp(suffix=".bin")
flask.request.files["image_file"].save(outfile[1])
image = utils.image.load_image(outfile[1])
os.close(outfile[0])
os.remove(outfile[1])
else:
raise werkzeug.exceptions.BadRequest("must provide image_url or image_file")
# resize image
db_task = job.train_task().dataset.analyze_db_tasks()[0]
height = db_task.image_height
width = db_task.image_width
image = utils.image.resize_image(image, height, width, channels=db_task.image_channels, resize_mode="squash")
epoch = None
if "snapshot_epoch" in flask.request.form:
epoch = float(flask.request.form["snapshot_epoch"])
layers = "none"
if "show_visualizations" in flask.request.form and flask.request.form["show_visualizations"]:
layers = "all"
outputs, visualizations = job.train_task().infer_one(image, snapshot_epoch=epoch, layers=layers)
if request_wants_json():
return flask.jsonify({"outputs": dict((name, blob.tolist()) for name, blob in outputs.iteritems())})
else:
return flask.render_template(
"models/images/generic/infer_one.html",
job=job,
image_src=utils.image.embed_image_html(image),
network_outputs=outputs,
visualizations=visualizations,
total_parameters=sum(v["param_count"] for v in visualizations if v["vis_type"] == "Weights"),
)
def classify_one():
"""
Classify one image and return the top 5 classifications
Returns JSON when requested: {predictions: {category: confidence,...}}
"""
model_job = job_from_request()
if 'image_url' in flask.request.form and flask.request.form['image_url']:
image_path = flask.request.form['image_url']
elif 'image_file' in flask.request.files and flask.request.files['image_file']:
outfile = tempfile.mkstemp(suffix='.png')
flask.request.files['image_file'].save(outfile[1])
image_path = outfile[1]
os.close(outfile[0])
else:
raise werkzeug.exceptions.BadRequest('must provide image_url or image_file')
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
layers = 'none'
if 'show_visualizations' in flask.request.form and flask.request.form['show_visualizations']:
layers = 'all'
# create inference job
inference_job = ImageInferenceClassifyOneJob(
username = utils.auth.get_username(),
name = "Classify One Image",
model = model_job,
images = [image_path],
epoch = epoch,
layers = layers
)
# schedule tasks
scheduler.add_job(inference_job)
if request_wants_json():
return flask.jsonify(inference_job.json_dict())
else:
return flask.redirect(flask.url_for('digits.inference.views.show', job_id=inference_job.id()))
def get_weights():
""" Return the weights for a given layer """
job = job_from_request()
args = flask.request.args
layer_name = args["layer_name"]
range_min = int(args["range_min"])
range_max = int(args["range_max"])
data = []
stats = {}
num_units = 0
# Open h5py file, and retrieve weights in specified range for given layer:
if os.path.isfile(job.get_filters_path()):
f = h5py.File(job.get_filters_path())
if layer_name in f:
num_units = len(f[layer_name])
stats = json.loads(f[layer_name].attrs["stats"])
data = f[layer_name][:][range_min:range_max].tolist()
return flask.jsonify({"data": data, "length": num_units, "stats": stats})
def get_max_activations():
""" Returns array of maximum activations for a given layer """
job = job_from_request()
args = flask.request.args
layer_name = args["layer_name"]
range_min = int(args["range_min"])
range_max = int(args["range_max"])
data = []
stats = {}
if layer_has_max_activations(job, layer_name):
f = h5py.File(job.get_max_activations_path(), 'r')
completed_units = len(f[layer_name].keys())
for unit in range(completed_units):
data.append(True)
w = h5py.File(job.get_filters_path(), 'r')
if layer_name in w:
stats = json.loads(w[layer_name].attrs["stats"])
total_units = stats["shape"][0]
uncompleted_units = total_units - completed_units
if uncompleted_units > 0:
for unit in range(uncompleted_units):
data.append(False)
elif os.path.isfile(job.get_filters_path()):
f = h5py.File(job.get_filters_path(), 'r')
if layer_name in f:
stats = json.loads(f[layer_name].attrs["stats"])
data = fill_empty(stats["shape"][0])
return flask.jsonify({
"stats": stats,
"data": data[range_min:range_max],
"length": len(data)
})
def explore():
"""
Returns a gallery consisting of the images of one of the dbs
"""
job = job_from_request()
# Get LMDB
db = job.path(flask.request.args.get('db'))
db_path = job.path(db)
labels = []
page = int(flask.request.args.get('page', 0))
size = int(flask.request.args.get('size', 25))
reader = DbReader(db_path)
count = 0
imgs = []
min_page = max(0, page - 5)
total_entries = reader.total_entries
max_page = min((total_entries-1) / size, page + 5)
pages = range(min_page, max_page + 1)
for key, value in reader.entries():
if count >= page*size:
datum = caffe_pb2.Datum()
datum.ParseFromString(value)
if not datum.encoded:
raise RuntimeError("Expected encoded database")
s = StringIO()
s.write(datum.data)
s.seek(0)
img = PIL.Image.open(s)
imgs.append({"label": None, "b64": utils.image.embed_image_html(img)})
count += 1
if len(imgs) >= size:
break
return flask.render_template('datasets/images/explore.html', page=page, size=size, job=job, imgs=imgs, labels=None, pages=pages, label=None, total_entries=total_entries, db=db)
def max_activation():
args = flask.request.args
job = job_from_request()
layer_name = args["layer_name"]
unit = args["unit"]
raw_data = 128 * np.ones((256, 256)).astype(int)
max_activation_path = job.get_max_activations_path()
if os.path.isfile(max_activation_path):
f = h5py.File(max_activation_path, 'r')
if layer_name in f:
if str(unit) in f[layer_name]:
raw_data = np.transpose(f[layer_name][str(unit)]['cropped'][:],
(1, 2, 0))
f.close()
# Add one channel for greyscale images:
if len(raw_data[0][0]) == 1:
raw_data = np.transpose(raw_data, (2, 0, 1))[0]
img = PIL.Image.fromarray(np.uint8(raw_data))
return serve_pil_image(img)
def infer_one():
"""
Infer one image
"""
model_job = job_from_request()
remove_image_path = False
if 'image_path' in flask.request.form and flask.request.form['image_path']:
image_path = flask.request.form['image_path']
elif 'image_file' in flask.request.files and flask.request.files['image_file']:
outfile = tempfile.mkstemp(suffix='.bin')
flask.request.files['image_file'].save(outfile[1])
image_path = outfile[1]
os.close(outfile[0])
remove_image_path = True
else:
raise werkzeug.exceptions.BadRequest('must provide image_path or image_file')
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
layers = 'none'
if 'show_visualizations' in flask.request.form and flask.request.form['show_visualizations']:
layers = 'all'
if 'dont_resize' in flask.request.form and flask.request.form['dont_resize']:
resize = False
else:
resize = True
# create inference job
inference_job = ImageInferenceJob(
username= utils.auth.get_username(),
name= "Infer One Image",
model=model_job,
images=[image_path],
epoch=epoch,
layers=layers,
resize=resize,
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, model_visualization = inference_job.get_data()
# set return status code
status_code = 500 if inference_job.status == 'E' else 200
# delete job folder and remove from scheduler list
scheduler.delete_job(inference_job)
if remove_image_path:
os.remove(image_path)
if inputs is not None and len(inputs['data']) == 1:
image = utils.image.embed_image_html(inputs['data'][0])
visualizations, header_html, app_begin_html, app_end_html = get_inference_visualizations(
model_job.dataset,
inputs,
outputs)
inference_view_html = visualizations[0]
else:
image = None
inference_view_html = None
header_html = None
app_begin_html = None
app_end_html = None
if request_wants_json():
return flask.jsonify({'outputs': dict((name, blob.tolist())
for name, blob in outputs.iteritems())}), status_code
else:
return flask.render_template(
'models/images/generic/infer_one.html',
model_job=model_job,
job=inference_job,
image_src=image,
inference_view_html=inference_view_html,
header_html=header_html,
app_begin_html=app_begin_html,
app_end_html=app_end_html,
visualizations=model_visualization,
total_parameters=sum(v['param_count'] for v in model_visualization
if v['vis_type'] == 'Weights'),
), status_code
def infer_db():
"""
Infer a database
"""
model_job = job_from_request()
if 'db_path' not in flask.request.form or flask.request.form[
'db_path'] is None:
raise werkzeug.exceptions.BadRequest('db_path is a required field')
db_path = flask.request.form['db_path']
if not os.path.exists(db_path):
raise werkzeug.exceptions.BadRequest('DB "%s" does not exit' % db_path)
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
if 'dont_resize' in flask.request.form and flask.request.form[
'dont_resize']:
resize = False
else:
resize = True
# create inference job
inference_job = ImageInferenceJob(
username=utils.auth.get_username(),
name="Infer Many Images",
model=model_job,
images=db_path,
epoch=epoch,
layers='none',
resize=resize,
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, _ = inference_job.get_data()
# set return status code
status_code = 500 if inference_job.status == 'E' else 200
# delete job folder and remove from scheduler list
scheduler.delete_job(inference_job)
if outputs is not None and len(outputs) < 1:
# an error occurred
outputs = None
if inputs is not None:
keys = [str(idx) for idx in inputs['ids']]
inference_views_html, header_html, app_begin_html, app_end_html = get_inference_visualizations(
model_job.dataset, inputs, outputs)
else:
inference_views_html = None
header_html = None
keys = None
app_begin_html = None
app_end_html = None
if request_wants_json():
result = {}
for i, key in enumerate(keys):
result[key] = dict(
(name, blob[i].tolist()) for name, blob in outputs.iteritems())
return flask.jsonify({'outputs': result}), status_code
else:
return flask.render_template(
'models/images/generic/infer_db.html',
model_job=model_job,
job=inference_job,
keys=keys,
inference_views_html=inference_views_html,
header_html=header_html,
app_begin_html=app_begin_html,
app_end_html=app_end_html,
), status_code
def infer_many():
"""
Infer many images
"""
model_job = job_from_request()
image_list = flask.request.files.get('image_list')
if not image_list:
raise werkzeug.exceptions.BadRequest('image_list is a required field')
if 'image_folder' in flask.request.form and flask.request.form[
'image_folder'].strip():
image_folder = flask.request.form['image_folder']
if not os.path.exists(image_folder):
raise werkzeug.exceptions.BadRequest(
'image_folder "%s" does not exit' % image_folder)
else:
image_folder = None
if 'num_test_images' in flask.request.form and flask.request.form[
'num_test_images'].strip():
num_test_images = int(flask.request.form['num_test_images'])
else:
num_test_images = None
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
if 'dont_resize' in flask.request.form and flask.request.form[
'dont_resize']:
resize = False
else:
resize = True
paths = []
for line in image_list.readlines():
line = line.strip()
if not line:
continue
path = None
# might contain a numerical label at the end
match = re.match(r'(.*\S)\s+\d+$', line)
if match:
path = match.group(1)
else:
path = line
if not utils.is_url(path) and image_folder and not os.path.isabs(path):
path = os.path.join(image_folder, path)
paths.append(path)
if num_test_images is not None and len(paths) >= num_test_images:
break
# create inference job
inference_job = ImageInferenceJob(
username=utils.auth.get_username(),
name="Infer Many Images",
model=model_job,
images=paths,
epoch=epoch,
layers='none',
resize=resize,
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, _ = inference_job.get_data()
# set return status code
status_code = 500 if inference_job.status == 'E' else 200
# delete job folder and remove from scheduler list
scheduler.delete_job(inference_job)
if outputs is not None and len(outputs) < 1:
# an error occurred
outputs = None
if inputs is not None:
paths = [paths[idx] for idx in inputs['ids']]
inference_views_html, header_html, app_begin_html, app_end_html = get_inference_visualizations(
model_job.dataset, inputs, outputs)
else:
inference_views_html = None
header_html = None
app_begin_html = None
app_end_html = None
if request_wants_json():
result = {}
for i, path in enumerate(paths):
result[path] = dict(
(name, blob[i].tolist()) for name, blob in outputs.iteritems())
return flask.jsonify({'outputs': result}), status_code
else:
return flask.render_template(
'models/images/generic/infer_many.html',
model_job=model_job,
job=inference_job,
paths=paths,
inference_views_html=inference_views_html,
header_html=header_html,
app_begin_html=app_begin_html,
app_end_html=app_end_html,
), status_code
def infer_one():
"""
Infer one image
"""
model_job = job_from_request()
remove_image_path = False
if 'image_path' in flask.request.form and flask.request.form['image_path']:
image_path = flask.request.form['image_path']
elif 'image_file' in flask.request.files and flask.request.files[
'image_file']:
outfile = tempfile.mkstemp(suffix='.bin')
flask.request.files['image_file'].save(outfile[1])
image_path = outfile[1]
os.close(outfile[0])
remove_image_path = True
else:
raise werkzeug.exceptions.BadRequest(
'must provide image_path or image_file')
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
layers = 'none'
if 'show_visualizations' in flask.request.form and flask.request.form[
'show_visualizations']:
layers = 'all'
if 'dont_resize' in flask.request.form and flask.request.form[
'dont_resize']:
resize = False
else:
resize = True
# create inference job
inference_job = ImageInferenceJob(
username=utils.auth.get_username(),
name="Infer One Image",
model=model_job,
images=[image_path],
epoch=epoch,
layers=layers,
resize=resize,
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, model_visualization = inference_job.get_data()
# set return status code
status_code = 500 if inference_job.status == 'E' else 200
# delete job folder and remove from scheduler list
scheduler.delete_job(inference_job)
if remove_image_path:
os.remove(image_path)
if inputs is not None and len(inputs['data']) == 1:
image = utils.image.embed_image_html(inputs['data'][0])
visualizations, header_html, app_begin_html, app_end_html = get_inference_visualizations(
model_job.dataset, inputs, outputs)
inference_view_html = visualizations[0]
else:
image = None
inference_view_html = None
header_html = None
app_begin_html = None
app_end_html = None
if request_wants_json():
return flask.jsonify({
'outputs':
dict((name, blob.tolist()) for name, blob in outputs.iteritems())
}), status_code
else:
return flask.render_template(
'models/images/generic/infer_one.html',
model_job=model_job,
job=inference_job,
image_src=image,
inference_view_html=inference_view_html,
header_html=header_html,
app_begin_html=app_begin_html,
app_end_html=app_end_html,
visualizations=model_visualization,
total_parameters=sum(v['param_count'] for v in model_visualization
if v['vis_type'] == 'Weights'),
), status_code
def infer_extension():
"""
Perform inference using the data from an extension inference form
"""
model_job = job_from_request()
inference_db_job = None
try:
# create an inference database
inference_db_job = create_inference_db(model_job)
db_path = inference_db_job.get_feature_db_path(constants.TEST_DB)
# create database creation job
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
layers = 'none'
if 'show_visualizations' in flask.request.form and flask.request.form[
'show_visualizations']:
layers = 'all'
# create inference job
inference_job = ImageInferenceJob(
username=utils.auth.get_username(),
name="Inference",
model=model_job,
images=db_path,
epoch=epoch,
layers=layers,
resize=False,
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
finally:
if inference_db_job:
scheduler.delete_job(inference_db_job)
# retrieve inference data
inputs, outputs, model_visualization = inference_job.get_data()
# set return status code
status_code = 500 if inference_job.status == 'E' else 200
# delete job folder and remove from scheduler list
scheduler.delete_job(inference_job)
if outputs is not None and len(outputs) < 1:
# an error occurred
outputs = None
if inputs is not None:
keys = [str(idx) for idx in inputs['ids']]
inference_views_html, header_html, app_begin_html, app_end_html = get_inference_visualizations(
model_job.dataset, inputs, outputs)
else:
inference_views_html = None
header_html = None
keys = None
app_begin_html = None
app_end_html = None
if request_wants_json():
result = {}
for i, key in enumerate(keys):
result[key] = dict(
(name, blob[i].tolist()) for name, blob in outputs.iteritems())
return flask.jsonify({'outputs': result}), status_code
else:
return flask.render_template(
'models/images/generic/infer_extension.html',
model_job=model_job,
job=inference_job,
keys=keys,
inference_views_html=inference_views_html,
header_html=header_html,
app_begin_html=app_begin_html,
app_end_html=app_end_html,
visualizations=model_visualization,
total_parameters=sum(v['param_count'] for v in model_visualization
if v['vis_type'] == 'Weights'),
), status_code
def image_classification_model_classify_many():
"""
Classify many images and return the top 5 classifications for each
Returns JSON when requested: {classifications: {filename: [[category,confidence],...],...}}
"""
job = job_from_request()
image_list = flask.request.files.get('image_list')
if not image_list:
raise werkzeug.exceptions.BadRequest('image_list is a required field')
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
paths = []
images = []
dataset = job.train_task().dataset
for line in image_list.readlines():
line = line.strip()
if not line:
continue
path = None
# might contain a numerical label at the end
match = re.match(r'(.*\S)\s+\d+$', line)
if match:
path = match.group(1)
else:
path = line
try:
image = utils.image.load_image(path)
image = utils.image.resize_image(
image,
dataset.image_dims[0],
dataset.image_dims[1],
channels=dataset.image_dims[2],
resize_mode=dataset.resize_mode,
)
paths.append(path)
images.append(image)
except utils.errors.LoadImageError as e:
print e
if not len(images):
raise werkzeug.exceptions.BadRequest(
'Unable to load any images from the file')
labels, scores = job.train_task().infer_many(images, snapshot_epoch=epoch)
if scores is None:
raise RuntimeError('An error occured while processing the images')
# take top 5
indices = (-scores).argsort()[:, :5]
classifications = []
for image_index, index_list in enumerate(indices):
result = []
for i in index_list:
# `i` is a category in labels and also an index into scores
result.append((labels[i], round(100.0 * scores[image_index, i],
2)))
classifications.append(result)
if request_wants_json():
joined = dict(zip(paths, classifications))
return flask.jsonify({'classifications': joined})
else:
return flask.render_template(
'models/images/classification/classify_many.html',
paths=paths,
classifications=classifications,
)
def explore():
"""
Returns a gallery consisting of the images of one of the dbs
"""
job = job_from_request()
# Get LMDB
db = flask.request.args.get('db', 'train')
if 'train' in db.lower():
task = job.train_db_task()
elif 'val' in db.lower():
task = job.val_db_task()
elif 'test' in db.lower():
task = job.test_db_task()
if task is None:
raise ValueError('No create_db task for {0}'.format(db))
if task.status != 'D':
raise ValueError(
"This create_db task's status should be 'D' but is '{0}'".format(
task.status))
if task.backend != 'lmdb':
raise ValueError(
"Backend is {0} while expected backend is lmdb".format(
task.backend))
db_path = job.path(task.db_name)
labels = task.get_labels()
page = int(flask.request.args.get('page', 0))
size = int(flask.request.args.get('size', 25))
label = flask.request.args.get('label', None)
if label is not None:
try:
label = int(label)
except ValueError:
label = None
reader = DbReader(db_path)
count = 0
imgs = []
min_page = max(0, page - 5)
if label is None:
total_entries = reader.total_entries
else:
# After PR#1500, task.distribution[str(label)] is a dictionary
# with keys = 'count' and 'error_count'
label_entries = task.distribution[str(label)]
if isinstance(label_entries, dict):
total_entries = label_entries['count']
else:
total_entries = label_entries
max_page = min((total_entries - 1) // size, page + 5)
pages = range(min_page, max_page + 1)
for key, value in reader.entries():
if count >= page * size:
datum = dataset_pb2.Datum()
datum.ParseFromString(value)
if label is None or datum.label == label:
if datum.encoded:
s = BytesIO()
s.write(datum.data)
s.seek(0)
img = PIL.Image.open(s)
else:
arr = datum_to_array(datum)
# CHW -> HWC
arr = arr.transpose((1, 2, 0))
if arr.shape[2] == 1:
# HWC -> HW
arr = arr[:, :, 0]
elif arr.shape[2] == 3:
# BGR -> RGB
# XXX see issue #59
arr = arr[:, :, [2, 1, 0]]
img = PIL.Image.fromarray(arr)
imgs.append({
"label": labels[datum.label],
"b64": utils.image.embed_image_html(img)
})
if label is None:
count += 1
else:
datum = dataset_pb2.Datum()
datum.ParseFromString(value)
if datum.label == int(label):
count += 1
if len(imgs) >= size:
break
return flask.render_template('datasets/images/explore.html',
page=page,
size=size,
job=job,
imgs=imgs,
labels=labels,
pages=pages,
label=label,
total_entries=total_entries,
db=db)
def infer_many():
"""
Infer many images
"""
model_job = job_from_request()
image_list = flask.request.files.get('image_list')
if not image_list:
raise werkzeug.exceptions.BadRequest('image_list is a required field')
if 'image_folder' in flask.request.form and flask.request.form['image_folder'].strip():
image_folder = flask.request.form['image_folder']
if not os.path.exists(image_folder):
raise werkzeug.exceptions.BadRequest('image_folder "%s" does not exit' % image_folder)
else:
image_folder = None
if 'num_test_images' in flask.request.form and flask.request.form['num_test_images'].strip():
num_test_images = int(flask.request.form['num_test_images'])
else:
num_test_images = None
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
if 'dont_resize' in flask.request.form and flask.request.form['dont_resize']:
resize = False
else:
resize = True
paths = []
for line in image_list.readlines():
line = line.strip()
if not line:
continue
path = None
# might contain a numerical label at the end
match = re.match(r'(.*\S)\s+\d+$', line)
if match:
path = match.group(1)
else:
path = line
if not utils.is_url(path) and image_folder and not os.path.isabs(path):
path = os.path.join(image_folder, path)
paths.append(path)
if num_test_images is not None and len(paths) >= num_test_images:
break
# create inference job
inference_job = ImageInferenceJob(
username=utils.auth.get_username(),
name="Infer Many Images",
model=model_job,
images=paths,
epoch=epoch,
layers='none',
resize=resize,
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, _ = inference_job.get_data()
# set return status code
status_code = 500 if inference_job.status == 'E' else 200
# delete job folder and remove from scheduler list
scheduler.delete_job(inference_job)
if outputs is not None and len(outputs) < 1:
# an error occurred
outputs = None
if inputs is not None:
paths = [paths[idx] for idx in inputs['ids']]
inference_views_html, header_html, app_begin_html, app_end_html = get_inference_visualizations(
model_job.dataset,
inputs,
outputs)
else:
inference_views_html = None
header_html = None
app_begin_html = None
app_end_html = None
if request_wants_json():
result = {}
for i, path in enumerate(paths):
result[path] = dict((name, blob[i].tolist()) for name, blob in outputs.iteritems())
return flask.jsonify({'outputs': result}), status_code
else:
return flask.render_template(
'models/images/generic/infer_many.html',
model_job=model_job,
job=inference_job,
paths=paths,
inference_views_html=inference_views_html,
header_html=header_html,
app_begin_html=app_begin_html,
app_end_html=app_end_html,
), status_code
def image_classification_model_top_n():
"""
Classify many images and show the top N images per category by confidence
"""
job = job_from_request()
image_list = flask.request.files['image_list']
if not image_list:
raise werkzeug.exceptions.BadRequest('File upload not found')
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
if 'top_n' in flask.request.form and flask.request.form['top_n'].strip():
top_n = int(flask.request.form['top_n'])
else:
top_n = 9
if 'num_test_images' in flask.request.form and flask.request.form[
'num_test_images'].strip():
num_images = int(flask.request.form['num_test_images'])
else:
num_images = None
paths = []
for line in image_list.readlines():
line = line.strip()
if not line:
continue
path = None
# might contain a numerical label at the end
match = re.match(r'(.*\S)\s+\d+$', line)
if match:
path = match.group(1)
else:
path = line
paths.append(path)
random.shuffle(paths)
images = []
dataset = job.train_task().dataset
for path in paths:
try:
image = utils.image.load_image(path)
image = utils.image.resize_image(
image,
dataset.image_dims[0],
dataset.image_dims[1],
channels=dataset.image_dims[2],
resize_mode=dataset.resize_mode,
)
images.append(image)
if num_images and len(images) >= num_images:
break
except utils.errors.LoadImageError as e:
print e
if not len(images):
raise werkzeug.exceptions.BadRequest(
'Unable to load any images from the file')
labels, scores = job.train_task().infer_many(images, snapshot_epoch=epoch)
if scores is None:
raise RuntimeError('An error occured while processing the images')
indices = (-scores).argsort(axis=0)[:top_n]
results = []
for i in xrange(indices.shape[1]):
result_images = []
for j in xrange(top_n):
result_images.append(images[indices[j][i]])
results.append((labels[i],
utils.image.embed_image_html(
utils.image.vis_square(np.array(result_images)))))
return flask.render_template(
'models/images/classification/top_n.html',
job=job,
results=results,
)
def classify_many():
"""
Classify many images and return the top 5 classifications for each
Returns JSON when requested: {classifications: {filename: [[category,confidence],...],...}}
"""
model_job = job_from_request()
image_list = flask.request.files.get('image_list')
if not image_list:
raise werkzeug.exceptions.BadRequest('image_list is a required field')
if 'image_folder' in flask.request.form and flask.request.form['image_folder'].strip():
image_folder = flask.request.form['image_folder']
if not os.path.exists(image_folder):
raise werkzeug.exceptions.BadRequest('image_folder "%s" does not exit' % image_folder)
else:
image_folder = None
if 'num_test_images' in flask.request.form and flask.request.form['num_test_images'].strip():
num_test_images = int(flask.request.form['num_test_images'])
else:
num_test_images = None
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
paths, ground_truths = read_image_list(image_list, image_folder, num_test_images)
# create inference job
inference_job = ImageInferenceJob(
username=utils.auth.get_username(),
name="Classify Many Images",
model=model_job,
images=paths,
epoch=epoch,
layers='none'
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, _ = inference_job.get_data()
# set return status code
status_code = 500 if inference_job.status == 'E' else 200
# delete job
scheduler.delete_job(inference_job)
if outputs is not None and len(outputs) < 1:
# an error occurred
outputs = None
if inputs is not None:
# retrieve path and ground truth of images that were successfully processed
paths = [paths[idx] for idx in inputs['ids']]
ground_truths = [ground_truths[idx] for idx in inputs['ids']]
# defaults
classifications = None
show_ground_truth = None
top1_accuracy = None
top5_accuracy = None
confusion_matrix = None
per_class_accuracy = None
labels = None
if outputs is not None:
# convert to class probabilities for viewing
last_output_name, last_output_data = outputs.items()[-1]
if len(last_output_data) < 1:
raise werkzeug.exceptions.BadRequest(
'Unable to classify any image from the file')
scores = last_output_data
# take top 5
indices = (-scores).argsort()[:, :5]
labels = model_job.train_task().get_labels()
n_labels = len(labels)
# remove invalid ground truth
ground_truths = [x if x is not None and (0 <= x < n_labels) else None for x in ground_truths]
# how many pieces of ground truth to we have?
n_ground_truth = len([1 for x in ground_truths if x is not None])
show_ground_truth = n_ground_truth > 0
# compute classifications and statistics
classifications = []
n_top1_accurate = 0
n_top5_accurate = 0
confusion_matrix = np.zeros((n_labels, n_labels), dtype=np.dtype(int))
for image_index, index_list in enumerate(indices):
result = []
if ground_truths[image_index] is not None:
if ground_truths[image_index] == index_list[0]:
n_top1_accurate += 1
if ground_truths[image_index] in index_list:
n_top5_accurate += 1
if (0 <= ground_truths[image_index] < n_labels) and (0 <= index_list[0] < n_labels):
confusion_matrix[ground_truths[image_index], index_list[0]] += 1
for i in index_list:
# `i` is a category in labels and also an index into scores
# ignore prediction if we don't have a label for the corresponding class
# the user might have set the final fully-connected layer's num_output to
# too high a value
if i < len(labels):
result.append((labels[i], round(100.0 * scores[image_index, i], 2)))
classifications.append(result)
# accuracy
if show_ground_truth:
top1_accuracy = round(100.0 * n_top1_accurate / n_ground_truth, 2)
top5_accuracy = round(100.0 * n_top5_accurate / n_ground_truth, 2)
per_class_accuracy = []
for x in xrange(n_labels):
n_examples = sum(confusion_matrix[x])
per_class_accuracy.append(
round(100.0 * confusion_matrix[x, x] / n_examples, 2) if n_examples > 0 else None)
else:
top1_accuracy = None
top5_accuracy = None
per_class_accuracy = None
# replace ground truth indices with labels
ground_truths = [labels[x] if x is not None and (0 <= x < n_labels) else None for x in ground_truths]
if request_wants_json():
joined = dict(zip(paths, classifications))
return flask.jsonify({'classifications': joined}), status_code
else:
return flask.render_template('models/images/classification/classify_many.html',
model_job=model_job,
job=inference_job,
paths=paths,
classifications=classifications,
show_ground_truth=show_ground_truth,
ground_truths=ground_truths,
top1_accuracy=top1_accuracy,
top5_accuracy=top5_accuracy,
confusion_matrix=confusion_matrix,
per_class_accuracy=per_class_accuracy,
labels=labels,
), status_code
def generic_image_model_infer_many():
"""
Infer many images
"""
job = job_from_request()
image_list = flask.request.files.get('image_list')
if not image_list:
raise werkzeug.exceptions.BadRequest('image_list is a required field')
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
paths = []
images = []
db_task = job.train_task().dataset.analyze_db_tasks()[0]
height = db_task.image_height
width = db_task.image_width
if job.train_task().crop_size:
height = job.train_task().crop_size
width = job.train_task().crop_size
channels = db_task.image_channels
for line in image_list.readlines():
line = line.strip()
if not line:
continue
path = None
# might contain a numerical label at the end
match = re.match(r'(.*\S)\s+\d+$', line)
if match:
path = match.group(1)
else:
path = line
try:
image = utils.image.load_image(path)
image = utils.image.resize_image(image, height, width,
channels = channels,
resize_mode = 'squash',
)
paths.append(path)
images.append(image)
except utils.errors.LoadImageError as e:
print e
if not len(images):
raise werkzeug.exceptions.BadRequest(
'Unable to load any images from the file')
outputs = job.train_task().infer_many(images, snapshot_epoch=epoch)
if outputs is None:
raise RuntimeError('An error occured while processing the images')
if request_wants_json():
result = {}
for i, path in enumerate(paths):
result[path] = dict((name, blob[i].tolist()) for name,blob in outputs.iteritems())
return flask.jsonify({'outputs': result})
else:
return flask.render_template('models/images/generic/infer_many.html',
paths = paths,
network_outputs = outputs,
)
def classify_many():
"""
Classify many images and return the top 5 classifications for each
Returns JSON when requested: {classifications: {filename: [[category,confidence],...],...}}
"""
model_job = job_from_request()
image_list = flask.request.files.get('image_list')
if not image_list:
raise werkzeug.exceptions.BadRequest('image_list is a required field')
if 'image_folder' in flask.request.form and flask.request.form['image_folder'].strip():
image_folder = flask.request.form['image_folder']
if not os.path.exists(image_folder):
raise werkzeug.exceptions.BadRequest('image_folder "%s" does not exit' % image_folder)
else:
image_folder = None
if 'num_test_images' in flask.request.form and flask.request.form['num_test_images'].strip():
num_test_images = int(flask.request.form['num_test_images'])
else:
num_test_images = None
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
paths, ground_truths = read_image_list(image_list, image_folder, num_test_images)
# create inference job
inference_job = ImageInferenceJob(
username = utils.auth.get_username(),
name = "Classify Many Images",
model = model_job,
images = paths,
epoch = epoch,
layers = 'none'
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, _ = inference_job.get_data()
# delete job
scheduler.delete_job(inference_job)
if outputs is not None and len(outputs) < 1:
# an error occurred
outputs = None
if inputs is not None:
# retrieve path and ground truth of images that were successfully processed
paths = [paths[idx] for idx in inputs['ids']]
ground_truths = [ground_truths[idx] for idx in inputs['ids']]
classifications = None
if outputs is not None:
# convert to class probabilities for viewing
last_output_name, last_output_data = outputs.items()[-1]
if len(last_output_data) < 1:
raise werkzeug.exceptions.BadRequest(
'Unable to classify any image from the file')
scores = last_output_data
# take top 5
indices = (-scores).argsort()[:, :5]
labels = model_job.train_task().get_labels()
classifications = []
for image_index, index_list in enumerate(indices):
result = []
for i in index_list:
# `i` is a category in labels and also an index into scores
result.append((labels[i], round(100.0*scores[image_index, i],2)))
classifications.append(result)
# replace ground truth indices with labels
ground_truths = [labels[x] if x is not None and (0 <= x < len(labels)) else None for x in ground_truths]
if request_wants_json():
joined = dict(zip(paths, classifications))
return flask.jsonify({'classifications': joined})
else:
return flask.render_template('models/images/classification/classify_many.html',
model_job = model_job,
job = inference_job,
paths = paths,
classifications = classifications,
show_ground_truth= not(ground_truths == [None]*len(ground_truths)),
ground_truths = ground_truths
)
def explore():
"""
Returns a gallery consisting of the images of one of the dbs
"""
job = job_from_request()
# Get LMDB
db = flask.request.args.get('db', 'train')
if 'train' in db.lower():
task = job.train_db_task()
elif 'val' in db.lower():
task = job.val_db_task()
elif 'test' in db.lower():
task = job.test_db_task()
if task is None:
raise ValueError('No create_db task for {0}'.format(db))
if task.status != 'D':
raise ValueError("This create_db task's status should be 'D' but is '{0}'".format(task.status))
if task.backend != 'lmdb':
raise ValueError("Backend is {0} while expected backend is lmdb".format(task.backend))
db_path = job.path(task.db_name)
labels = task.get_labels()
page = int(flask.request.args.get('page', 0))
size = int(flask.request.args.get('size', 25))
label = flask.request.args.get('label', None)
if label is not None:
try:
label = int(label)
label_str = labels[label]
except ValueError:
label = None
reader = DbReader(db_path)
count = 0
imgs = []
min_page = max(0, page - 5)
if label is None:
total_entries = reader.total_entries
else:
total_entries = task.distribution[str(label)]
max_page = min((total_entries-1) / size, page + 5)
pages = range(min_page, max_page + 1)
for key, value in reader.entries():
if count >= page*size:
datum = caffe_pb2.Datum()
datum.ParseFromString(value)
if label is None or datum.label == label:
if datum.encoded:
s = StringIO()
s.write(datum.data)
s.seek(0)
img = PIL.Image.open(s)
else:
import caffe.io
arr = caffe.io.datum_to_array(datum)
# CHW -> HWC
arr = arr.transpose((1,2,0))
if arr.shape[2] == 1:
# HWC -> HW
arr = arr[:,:,0]
elif arr.shape[2] == 3:
# BGR -> RGB
# XXX see issue #59
arr = arr[:,:,[2,1,0]]
img = PIL.Image.fromarray(arr)
imgs.append({"label":labels[datum.label], "b64": utils.image.embed_image_html(img)})
if label is None:
count += 1
else:
datum = caffe_pb2.Datum()
datum.ParseFromString(value)
if datum.label == int(label):
count += 1
if len(imgs) >= size:
break
return flask.render_template('datasets/images/explore.html', page=page, size=size, job=job, imgs=imgs, labels=labels, pages=pages, label=label, total_entries=total_entries, db=db)
def infer_db():
"""
Infer a database
"""
model_job = job_from_request()
if not 'db_path' in flask.request.form or flask.request.form['db_path'] is None:
raise werkzeug.exceptions.BadRequest('db_path is a required field')
db_path = flask.request.form['db_path']
if not os.path.exists(db_path):
raise werkzeug.exceptions.BadRequest('DB "%s" does not exit' % db_path)
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
# create inference job
inference_job = ImageInferenceJob(
username = utils.auth.get_username(),
name = "Infer Many Images",
model = model_job,
images = db_path,
epoch = epoch,
layers = 'none',
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, _ = inference_job.get_data()
# delete job folder and remove from scheduler list
scheduler.delete_job(inference_job)
if outputs is not None and len(outputs) < 1:
# an error occurred
outputs = None
if inputs is not None:
keys = [str(idx) for idx in inputs['ids']]
else:
keys = None
if request_wants_json():
result = {}
for i, key in enumerate(keys):
result[key] = dict((name, blob[i].tolist()) for name,blob in outputs.iteritems())
return flask.jsonify({'outputs': result})
else:
return flask.render_template('models/images/generic/infer_db.html',
model_job = model_job,
job = inference_job,
keys = keys,
network_outputs = outputs,
)
def classify_many():
"""
Classify many images and return the top 5 classifications for each
Returns JSON when requested: {classifications: {filename: [[category,confidence],...],...}}
"""
model_job = job_from_request()
image_list = flask.request.files.get('image_list')
if not image_list:
raise werkzeug.exceptions.BadRequest('image_list is a required field')
if 'image_folder' in flask.request.form and flask.request.form['image_folder'].strip():
image_folder = flask.request.form['image_folder']
if not os.path.exists(image_folder):
raise werkzeug.exceptions.BadRequest('image_folder "%s" does not exit' % image_folder)
else:
image_folder = None
if 'num_test_images' in flask.request.form and flask.request.form['num_test_images'].strip():
num_test_images = int(flask.request.form['num_test_images'])
else:
num_test_images = None
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
paths = []
ground_truths = []
for line in image_list.readlines():
line = line.strip()
if not line:
continue
path = None
# might contain a numerical label at the end
match = re.match(r'(.*\S)\s+(\d+)$', line)
if match:
path = match.group(1)
ground_truth = int(match.group(2))
else:
path = line
ground_truth = None
if not utils.is_url(path) and image_folder and not os.path.isabs(path):
path = os.path.join(image_folder, path)
paths.append(path)
ground_truths.append(ground_truth)
if num_test_images is not None and len(paths) >= num_test_images:
break
# create inference job
inference_job = ImageInferenceJob(
username = utils.auth.get_username(),
name = "Classify Many Images",
model = model_job,
images = paths,
epoch = epoch,
layers = 'none'
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, _ = inference_job.get_data()
# delete job
scheduler.delete_job(inference_job)
if outputs is not None and len(outputs) < 1:
# an error occurred
outputs = None
if inputs is not None:
# retrieve path and ground truth of images that were successfully processed
paths = [paths[idx] for idx in inputs['ids']]
ground_truths = [ground_truths[idx] for idx in inputs['ids']]
classifications = None
if outputs is not None:
# convert to class probabilities for viewing
last_output_name, last_output_data = outputs.items()[-1]
if len(last_output_data) < 1:
raise werkzeug.exceptions.BadRequest(
'Unable to classify any image from the file')
scores = last_output_data
# take top 5
indices = (-scores).argsort()[:, :5]
labels = model_job.train_task().get_labels()
classifications = []
for image_index, index_list in enumerate(indices):
result = []
for i in index_list:
# `i` is a category in labels and also an index into scores
result.append((labels[i], round(100.0*scores[image_index, i],2)))
classifications.append(result)
# replace ground truth indices with labels
ground_truths = [labels[x] if x is not None and (0 <= x < len(labels)) else None for x in ground_truths]
if request_wants_json():
joined = dict(zip(paths, classifications))
return flask.jsonify({'classifications': joined})
else:
return flask.render_template('models/images/classification/classify_many.html',
model_job = model_job,
job = inference_job,
paths = paths,
classifications = classifications,
show_ground_truth= not(ground_truths == [None]*len(ground_truths)),
ground_truths = ground_truths
)
def image_classification_dataset_explore():
"""
Returns a gallery consisting of the images of one of the dbs
"""
job = job_from_request()
# Get LMDB
db = flask.request.args.get('db', 'train')
if 'train' in db.lower():
task = job.train_db_task()
elif 'val' in db.lower():
task = job.val_db_task()
elif 'test' in db.lower():
task = job.test_db_task()
if task == None:
raise ValueError('No create_db task for {0}'.format(db))
if task.status != 'D':
raise ValueError(
"This create_db task's status should be 'D' but is '{0}'".format(
task.status))
if task.backend != 'lmdb':
raise ValueError(
"Backend is {0} while expected backend is lmdb".format(
task.backend))
db_path = job.path(task.db_name)
labels = task.get_labels()
page = int(flask.request.args.get('page', 0))
size = int(flask.request.args.get('size', 25))
label = flask.request.args.get('label', None)
if label is not None:
try:
label = int(label)
label_str = labels[label]
except ValueError:
label = None
reader = DbReader(db_path)
count = 0
imgs = []
min_page = max(0, page - 5)
if label is None:
total_entries = reader.total_entries
else:
total_entries = task.distribution[str(label)]
max_page = min((total_entries - 1) / size, page + 5)
pages = range(min_page, max_page + 1)
for key, value in reader.entries():
if count >= page * size:
datum = caffe_pb2.Datum()
datum.ParseFromString(value)
if label is None or datum.label == label:
s = StringIO()
s.write(datum.data)
s.seek(0)
img = PIL.Image.open(s)
imgs.append({
"label": labels[datum.label],
"b64": utils.image.image_to_base64(img)
})
if label is None:
count += 1
else:
datum = caffe_pb2.Datum()
datum.ParseFromString(value)
if datum.label == int(label):
count += 1
if len(imgs) >= size:
break
return flask.render_template('datasets/images/classification/explore.html',
page=page,
size=size,
job=job,
imgs=imgs,
labels=labels,
pages=pages,
label=label,
total_entries=total_entries,
db=db)
def classify_one():
"""
Classify one image and return the top 5 classifications
Returns JSON when requested: {predictions: {category: confidence,...}}
"""
model_job = job_from_request()
remove_image_path = False
if 'image_path' in flask.request.form and flask.request.form['image_path']:
image_path = flask.request.form['image_path']
elif 'image_file' in flask.request.files and flask.request.files['image_file']:
outfile = tempfile.mkstemp(suffix='.png')
flask.request.files['image_file'].save(outfile[1])
image_path = outfile[1]
os.close(outfile[0])
remove_image_path = True
else:
raise werkzeug.exceptions.BadRequest('must provide image_path or image_file')
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
layers = 'none'
if 'show_visualizations' in flask.request.form and flask.request.form['show_visualizations']:
layers = 'all'
# create inference job
inference_job = ImageInferenceJob(
username=utils.auth.get_username(),
name="Classify One Image",
model=model_job,
images=[image_path],
epoch=epoch,
layers=layers
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, visualizations = inference_job.get_data()
# set return status code
status_code = 500 if inference_job.status == 'E' else 200
# delete job
scheduler.delete_job(inference_job)
if remove_image_path:
os.remove(image_path)
image = None
predictions = []
if inputs is not None and len(inputs['data']) == 1:
image = utils.image.embed_image_html(inputs['data'][0])
# convert to class probabilities for viewing
last_output_name, last_output_data = outputs.items()[-1]
if len(last_output_data) == 1:
scores = last_output_data[0].flatten()
indices = (-scores).argsort()
labels = model_job.train_task().get_labels()
predictions = []
for i in indices:
# ignore prediction if we don't have a label for the corresponding class
# the user might have set the final fully-connected layer's num_output to
# too high a value
if i < len(labels):
predictions.append((labels[i], scores[i]))
predictions = [(p[0], round(100.0 * p[1], 2)) for p in predictions[:5]]
if request_wants_json():
return flask.jsonify({'predictions': predictions}), status_code
else:
return flask.render_template('models/images/classification/classify_one.html',
model_job=model_job,
job=inference_job,
image_src=image,
predictions=predictions,
visualizations=visualizations,
total_parameters=sum(v['param_count']
for v in visualizations if v['vis_type'] == 'Weights'),
), status_code
def infer_extension():
"""
Perform inference using the data from an extension inference form
"""
model_job = job_from_request()
inference_db_job = None
try:
# create an inference database
inference_db_job = create_inference_db(model_job)
db_path = inference_db_job.get_feature_db_path(constants.TEST_DB)
# create database creation job
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
layers = 'none'
if 'show_visualizations' in flask.request.form and flask.request.form['show_visualizations']:
layers = 'all'
# create inference job
inference_job = ImageInferenceJob(
username=utils.auth.get_username(),
name="Inference",
model=model_job,
images=db_path,
epoch=epoch,
layers=layers,
resize=False,
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
finally:
if inference_db_job:
scheduler.delete_job(inference_db_job)
# retrieve inference data
inputs, outputs, model_visualization = inference_job.get_data()
# set return status code
status_code = 500 if inference_job.status == 'E' else 200
# delete job folder and remove from scheduler list
scheduler.delete_job(inference_job)
if outputs is not None and len(outputs) < 1:
# an error occurred
outputs = None
if inputs is not None:
keys = [str(idx) for idx in inputs['ids']]
inference_views_html, header_html, app_begin_html, app_end_html = get_inference_visualizations(
model_job.dataset,
inputs,
outputs)
else:
inference_views_html = None
header_html = None
keys = None
app_begin_html = None
app_end_html = None
if request_wants_json():
result = {}
for i, key in enumerate(keys):
result[key] = dict((name, blob[i].tolist()) for name,blob in outputs.iteritems())
return flask.jsonify({'outputs': result}), status_code
else:
return flask.render_template(
'models/images/generic/infer_extension.html',
model_job=model_job,
job=inference_job,
keys=keys,
inference_views_html=inference_views_html,
header_html=header_html,
app_begin_html=app_begin_html,
app_end_html=app_end_html,
visualizations=model_visualization,
total_parameters=sum(v['param_count'] for v in model_visualization
if v['vis_type'] == 'Weights'),
), status_code
def top_n():
"""
Classify many images and show the top N images per category by confidence
"""
model_job = job_from_request()
image_list = flask.request.files['image_list']
if not image_list:
raise werkzeug.exceptions.BadRequest('File upload not found')
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
if 'top_n' in flask.request.form and flask.request.form['top_n'].strip():
top_n = int(flask.request.form['top_n'])
else:
top_n = 9
if 'image_folder' in flask.request.form and flask.request.form['image_folder'].strip():
image_folder = flask.request.form['image_folder']
if not os.path.exists(image_folder):
raise werkzeug.exceptions.BadRequest('image_folder "%s" does not exit' % image_folder)
else:
image_folder = None
if 'num_test_images' in flask.request.form and flask.request.form['num_test_images'].strip():
num_test_images = int(flask.request.form['num_test_images'])
else:
num_test_images = None
paths, _ = read_image_list(image_list, image_folder, num_test_images)
# create inference job
inference_job = ImageInferenceJob(
username=utils.auth.get_username(),
name="TopN Image Classification",
model=model_job,
images=paths,
epoch=epoch,
layers='none'
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, _ = inference_job.get_data()
# delete job
scheduler.delete_job(inference_job)
results = None
if outputs is not None and len(outputs) > 0:
# convert to class probabilities for viewing
last_output_name, last_output_data = outputs.items()[-1]
scores = last_output_data
if scores is None:
raise RuntimeError('An error occurred while processing the images')
labels = model_job.train_task().get_labels()
images = inputs['data']
indices = (-scores).argsort(axis=0)[:top_n]
results = []
# Can't have more images per category than the number of images
images_per_category = min(top_n, len(images))
# Can't have more categories than the number of labels or the number of outputs
n_categories = min(indices.shape[1], len(labels))
for i in xrange(n_categories):
result_images = []
for j in xrange(images_per_category):
result_images.append(images[indices[j][i]])
results.append((
labels[i],
utils.image.embed_image_html(
utils.image.vis_square(np.array(result_images),
colormap='white')
)
))
return flask.render_template('models/images/classification/top_n.html',
model_job=model_job,
job=inference_job,
results=results,
)
def infer_db():
"""
Infer a database
"""
model_job = job_from_request()
if not 'db_path' in flask.request.form or flask.request.form['db_path'] is None:
raise werkzeug.exceptions.BadRequest('db_path is a required field')
db_path = flask.request.form['db_path']
if not os.path.exists(db_path):
raise werkzeug.exceptions.BadRequest('DB "%s" does not exit' % db_path)
epoch = None
if 'snapshot_epoch' in flask.request.form:
epoch = float(flask.request.form['snapshot_epoch'])
if 'dont_resize' in flask.request.form and flask.request.form['dont_resize']:
resize = False
else:
resize = True
# create inference job
inference_job = ImageInferenceJob(
username=utils.auth.get_username(),
name="Infer Many Images",
model=model_job,
images=db_path,
epoch=epoch,
layers='none',
resize=resize,
)
# schedule tasks
scheduler.add_job(inference_job)
# wait for job to complete
inference_job.wait_completion()
# retrieve inference data
inputs, outputs, _ = inference_job.get_data()
# set return status code
status_code = 500 if inference_job.status == 'E' else 200
# delete job folder and remove from scheduler list
scheduler.delete_job(inference_job)
if outputs is not None and len(outputs) < 1:
# an error occurred
outputs = None
if inputs is not None:
keys = [str(idx) for idx in inputs['ids']]
inference_views_html, header_html, app_begin_html, app_end_html = get_inference_visualizations(
model_job.dataset,
inputs,
outputs)
else:
inference_views_html = None
header_html = None
keys = None
app_begin_html = None
app_end_html = None
if request_wants_json():
result = {}
for i, key in enumerate(keys):
result[key] = dict((name, blob[i].tolist()) for name,blob in outputs.iteritems())
return flask.jsonify({'outputs': result}), status_code
else:
return flask.render_template(
'models/images/generic/infer_db.html',
model_job=model_job,
job=inference_job,
keys=keys,
inference_views_html=inference_views_html,
header_html=header_html,
app_begin_html=app_begin_html,
app_end_html=app_end_html,
), status_code