def __getitem__(self, idx):
if self.use_src and not self.use_tgt:
record = self.recs.read_idx(self.idxs[idx])
header, im = recordio.unpack(record)
im = image.imdecode(im, self._flag)
l = header.label
if self.tforms is not None:
im = self.tforms(im)
return im, l
elif self.use_tgt and not self.use_src:
record = self.rect.read_idx(self.idxt[idx])
header, im = recordio.unpack(record)
im = image.imdecode(im, self._flag)
l = header.label
if self.tformt is not None:
im = self.tformt(im)
return im, l
else:
# online sample pairs generation
records = self.recs.read_idx(self.idxs[idx])
hs, ims = recordio.unpack(records)
ims = image.imdecode(ims, self._flag)
ls = hs.label
if self.tforms is not None:
ims = self.tforms(ims)
rnd = random.uniform(0, 1)
if rnd > 1. / (1 + self._ratio):
# random select class
cls_set = set(self.idxt_cls.keys())
cls_set.remove(ls)
idx = random.randint(0, len(cls_set) - 1)
ys = list(cls_set)[idx]
# random select the negative samples
idx = random.randint(0, len(self.idxt_cls[ys]) - 1)
idx = self.idxt_cls[ys][idx]
else:
idx = random.randint(0, len(self.idxt_cls[ls]) - 1)
idx = self.idxt_cls[ls][idx]
recordt = self.rect.read_idx(self.idxt[idx])
ht, imt = recordio.unpack(recordt)
imt = image.imdecode(imt, self._flag)
lt = ht.label
if self.tformt is not None:
imt = self.tformt(imt)
yc = 1 if ls == lt else 0
return ims, ls, imt, lt, yc
def __getitem__(self, idx):
r1 = self.rec1.read_idx(self.idx1[idx[0]])
h1, im1 = recordio.unpack(r1)
im1 = image.imdecode(im1, self._flag)
l1 = h1.label
im1 = self.tform1(im1)
r2 = self.rec2.read_idx(self.idx2[idx[1]])
h2, im2 = recordio.unpack(r2)
im2 = image.imdecode(im2, self._flag)
im2_1 = self.tform2(im2)
im2_2 = self.tform2(im2)
return im1, l1, im2_1, im2_2
def read(buf, flag=1, to_rgb=True, out=None):
"""
Read and decode an image to an NDArray.
Input image NDArray should has dim_order of 'HWC'.
Note: `imread` uses OpenCV (not the CV2 Python library).
MXNet must have been built with USE_OPENCV=1 for `imdecode` to work.
:param buf: str/bytes or numpy.ndarray
Binary image data as string or numpy ndarray.
:param flag: {0, 1}, default 1
1 for three channel color output. 0 for grayscale output.
:param to_rgb: bool, default True
True for RGB formatted output (MXNet default).
False for BGR formatted output (OpenCV default).
:param out: NDArray, optional
Output buffer. Use `None` for automatic allocation.
:return: NDArray
An `NDArray` containing the image.
Example
-------
>>> buf = open("flower.jpg", 'rb').read()
>>> image.read(buf)
<NDArray 224x224x3 @cpu(0)>
"""
return img.imdecode(buf, flag, to_rgb, out)
def predict(task, saved_path):
logging.info('Training Finished. Starting Prediction.\n')
rank_root = '/data/fashion/data/attribute/datasets_david/rank'
f_out = open('submission/%s.csv' % (task), 'w+')
with open(rank_root + '/Tests/question.csv', 'r') as f_in:
lines = f_in.readlines()
tokens = [l.rstrip().split(',') for l in lines]
task_tokens = [t for t in tokens if t[1] == task]
n = len(task_tokens)
cnt = 0
predictor_net = build_model()
predictor_ctx = mx.gpu(num_gpus[0]) if len(num_gpus) > 0 else mx.cpu()
predictor_net.load_params(saved_path, ctx=predictor_ctx)
logging.info("load model from %s" % saved_path)
for path, task, _ in task_tokens:
img_path = os.path.join(rank_root, path)
with open(img_path, 'rb') as f:
img = image.imdecode(f.read())
data = transform_predict(img)
out = predictor_net(data.as_in_context(predictor_ctx))
out = nd.SoftmaxActivation(out).mean(axis=0)
pred_out = ';'.join(["%.8f" % (o) for o in out.asnumpy().tolist()])
line_out = ','.join([path, task, pred_out])
f_out.write(line_out + '\n')
cnt += 1
progressbar(cnt, n)
f_out.close()
def predict(task):
net = gluon.model_zoo.vision.get_model(model_name)
with net.name_scope():
net.output = nn.Dense(task_num_class)
net.load_params('../../data/%s_%s.params' % (task, model_name),
ctx=mx.gpu(1))
logging.info('Training Finished. Starting Prediction.\n')
f_out = open('../../data/submission/%s_%s.csv' % (task, model_name), 'w')
with open('../../data/z_rank/Tests/question.csv', 'r') as f_in:
lines = f_in.readlines()
tokens = [l.rstrip().split(',') for l in lines]
task_tokens = [t for t in tokens if t[1] == task]
n = len(task_tokens)
cnt = 0
for path, task, _ in task_tokens:
img_path = os.path.join('../../data/z_rank', path)
with open(img_path, 'rb') as f:
img = image.imdecode(f.read())
data = transform_predict(img)
out = net(data.as_in_context(mx.gpu(1)))
out = nd.SoftmaxActivation(out).mean(axis=0)
pred_out = ';'.join(["%.8f" % (o) for o in out.asnumpy().tolist()])
line_out = ','.join([path, task, pred_out])
f_out.write(line_out + '\n')
cnt += 1
progressbar(cnt, n)
f_out.close()
def predict(task):
logging.info('Training Finished. Starting Prediction.\n')
f_out = open('submission/%s.csv' % (task), 'w')
with open('data2/week-rank/Tests/question.csv', 'r') as f_in:
lines = f_in.readlines()
tokens = [l.rstrip().split(',') for l in lines]
task_tokens = [t for t in tokens if t[1] == task]
n = len(task_tokens)
cnt = 0
for path, task, _ in task_tokens:
img_path = os.path.join('data2/week-rank', path)
with open(img_path, 'rb') as f:
img = image.imdecode(f.read())
out_all = np.zeros([
task_list[task],
])
###### Test Time augmentation (muti-scale test) ######
for scale in input_scale:
data = transform_predict(img, scale)
with ag.predict_mode():
out = net(data.as_in_context(
mx.gpu(0))) # 随机crop十张图片,所以此处是10张图片的结果
out = nd.SoftmaxActivation(out).mean(
axis=0) # 取softmax,然后对十个结果取平均
out_all += out.asnumpy()
out = out_all / len(input_scale)
pred_out = ';'.join(["%.8f" % (o) for o in out.tolist()])
line_out = ','.join([path, task, pred_out])
f_out.write(line_out + '\n')
cnt += 1
#progressbar(cnt, n)
f_out.close()
def lambda_handler(event, context):
try:
url = event['img_url']
response = requests.get(url,
headers={'Access-Control-Allow-Origin': '*'})
img = imdecode(response.content)
# 3. common to Jupiter
x, img = data.transforms.presets.ssd.transform_test([img], short=512)
class_IDs, scores, bounding_boxs = net(x)
output = utils.viz.plot_bbox(img,
bounding_boxs[0],
scores[0],
class_IDs[0],
class_names=net.classes)
output.axis('off')
f = BytesIO()
output.figure.savefig(f, format='jpeg', bbox_inches='tight')
s3_client.Bucket('dl-lambda-image-outgoing').put_object(
Key='front_stairs.jpg', Body=f.getvalue())
# end common 3
return base64.b64encode(f.getvalue())
except Exception as e:
raise Exception('ProcessingError')
def batch_net(dir, suffix, net):
res_list1 = []
res_list2 = []
fw1 = open('../data/dense1920/net_data.csv', 'w', encoding='utf-8')
fw2 = open('../data/dense1920/net_label.csv', 'w', encoding='utf-8')
for root, dirs, files in os.walk(dir):
for file in files:
filepath = os.path.join(root, file)
filesuffix = os.path.splitext(filepath)[1][1:]
if (filesuffix in suffix):
with open(filepath, 'rb') as f:
img = image.imdecode(f.read())
data, _ = transform(img, -1, test_augs)
data = data.expand_dims(axis=0)
out = net(data.as_in_context(mx.gpu()))
print(out.shape)
out = out.reshape(
(30720)) # dense169 6656 dense201 7890 //122880
out = out.as_in_context(mx.cpu())
out = out.asnumpy()
res = ''
for item in out:
res += str(item) + ' '
#print(res)
fw1.write(res + '\n')
label = root.strip().split('\\')[-1]
fw2.write(label + '\n')
print(label)
fw1.close()
fw2.close()
print('net done!!!')
def predict(task):
logging.info('Training Finished. Starting Prediction.\n')
f_out = open('submission/%s.csv'%(task), 'w') #将测试结果写入到此文件
#加载测试集中的图像，将网络检测结果写入到文件中
with open('data/rank/Tests/question.csv', 'r') as f_in:
lines = f_in.readlines()
tokens = [l.rstrip().split(',') for l in lines]
task_tokens = [t for t in tokens if t[1] == task]
n = len(task_tokens)
cnt = 0
for path, task, _ in task_tokens:
img_path = os.path.join('data/rank', path)
with open(img_path, 'rb') as f:
img = image.imdecode(f.read())
data = transform_predict(img)
out = net(data.as_in_context(mx.gpu(0)))
out = nd.SoftmaxActivation(out).mean(axis=0)
pred_out = ';'.join(["%.8f"%(o) for o in out.asnumpy().tolist()])
line_out = ','.join([path, task, pred_out])
f_out.write(line_out + '\n')
cnt += 1
progressbar(cnt, n)
f_out.close()
def read(buf, flag=1, to_rgb=True, out=None):
"""Read and decode an image to an NDArray.
Input image NDArray should has dim_order of 'HWC'.
Note: `imread` uses OpenCV (not the CV2 Python library).
MXNet must have been built with USE_OPENCV=1 for `imdecode` to work.
Parameters
----------
buf : str/bytes or numpy.ndarray
Binary image data as string or numpy ndarray.
flag : {0, 1}, default 1
1 for three channel color output. 0 for grayscale output.
to_rgb : bool, default True
True for RGB formatted output (MXNet default).
False for BGR formatted output (OpenCV default).
out : NDArray, optional
Output buffer. Use `None` for automatic allocation.
Returns
-------
NDArray
An `NDArray` containing the image.
Example
-------
>>> buf = open("flower.jpg", 'rb').read()
>>> image.read(buf)
<NDArray 224x224x3 @cpu(0)>
"""
return img.imdecode(buf, flag, to_rgb, out)
def predict_cropped_images(self, dataset_path, model_path, task, gpus, network='densenet201', loss_type='sfe'):
# with Path(dataset_path, 'Annotations/%s.csv' % task).open('r') as f:
# self.task_tokens = [l.rstrip().split(',') for l in f.readlines()]
# self.task_tokens = [t for t in tokens if t[1] == task]
results_path = self.output_submission_path.joinpath('%s.csv'%(task))
f_out = results_path.open('w+')
ctx = self.get_ctx()[0]
net = get_symbol(network, task_class_num_list[task], ctx)
net.load_params(model_path, ctx=ctx)
logging.info("load model from %s" % model_path)
for index, task_token in enumerate(self.task_tokens):
img_path, raw_task = task_token[:2]
assert raw_task == task, "task not match"
with Path(dataset_path, img_path).open('rb') as f:
raw_img = f.read()
img = image.imdecode(raw_img)
data = utils.transform_cropped_img(img)
out = net(data.as_in_context(ctx))
out = nd.SoftmaxActivation(out).mean(axis=0)
pred_out = ';'.join(["%.8f"%(o) for o in out.asnumpy().tolist()])
line_out = ','.join([img_path, task, pred_out])
f_out.write(line_out + '\n')
utils.progressbar(index, len(self.task_tokens))
f_out.close()
logging.info("end predicting for %s, results saved at %s" % (task, results_path))
def pre_processing(self, img_path):
"""
对图片进行处理，先按照高度进行resize，resize之后如果宽度不足指定宽度，就补黑色像素，否则就强行缩放到指定宽度
:param img_path: 图片地址
:return:
"""
data_augment = False
if self.phase == 'train' and np.random.rand() > 0.5:
data_augment = True
if data_augment:
img_h = 40
img_w = 340
else:
img_h = self.img_h
img_w = self.img_w
img = image.imdecode(
open(img_path, 'rb').read(), 1 if self.img_channel == 3 else 0)
h, w = img.shape[:2]
ratio_h = float(img_h) / h
new_w = int(w * ratio_h)
if new_w < img_w:
img = image.imresize(img, w=new_w, h=img_h)
step = nd.zeros((img_h, img_w - new_w, self.img_channel),
dtype=img.dtype)
img = nd.concat(img, step, dim=1)
else:
img = image.imresize(img, w=img_w, h=img_h)
if data_augment:
img, _ = image.random_crop(img, (self.img_w, self.img_h))
return img
def read_record(self, rec, idx):
record = rec.read_idx(idx)
header, im = recordio.unpack(record)
im = image.imdecode(im)
label = header.label
return im, label
def pre_processing(self, img_path):
"""
pre_processing
:param img_path: path of img
:return:
"""
data_augment = False
# if self.phase == 'train' and np.random.rand() > 0.5:
# data_augment = True
if data_augment:
img_h = 40
img_w = 340
else:
img_h = self.img_h
img_w = self.img_w
img = image.imdecode(open(img_path, 'rb').read(), 1 if self.img_channel == 3 else 0)
h, w = img.shape[:2]
ratio_h = float(img_h) / h
new_w = int(w * ratio_h)
################
# img = image.imresize(img, w=self.img_w, h=self.img_h)
if new_w < img_w:
img = image.imresize(img, w=new_w, h=img_h)
step = nd.zeros((img_h, img_w - new_w, self.img_channel), dtype=img.dtype)
img = nd.concat(img, step, dim=1)
else:
img = image.imresize(img, w=img_w, h=img_h)
# if data_augment:
# img, _ = image.random_crop(img, (self.img_w, self.img_h))
return img
def process_image(fname, data_shape):
with open(fname, 'rb') as f:
im = image.imdecode(f.read())
data = image.imresize(im, data_shape, data_shape)
data = data.astype('float32') - readData.rgb_mean
return data.transpose((2, 0, 1)).expand_dims(axis=0), im
def process_image(fname):
with open(fname, 'rb') as f:
im = image.imdecode(f.read())
# resize to data_shape
data = image.imresize(im, data_shape, data_shape)
# minus rgb mean, divide std
data = (data.astype('float32') - rgb_mean) / rgb_std
return data.transpose((2,0,1)).expand_dims(axis=0), im
def process_image(fname):
with open(fname, 'rb') as f:
im = image.imdecode(f.read())
# resize to data_shape
data = image.imresize(im, data_shape, data_shape)
# minus rgb mean
data = data.astype('float32') - rgb_mean
# convert to batch x channel x height xwidth
return data.transpose((2,0,1)).expand_dims(axis=0), im
def process_image(fname):
with open(fname, 'rb') as f:
im = image.imdecode(f.read())
# resize to data_shape
data = image.imresize(im, data_shape, data_shape)
# minus rgb mean
data = data.astype('float32') - rgb_mean
# convert to batch x channel x height xwidth
return data.transpose((2, 0, 1)).expand_dims(axis=0), im
def augument(data_path, label, image_name, save_path, size=224, training = True):
image_path = os.path.join(data_path, image_name)
(name, extension) = splitfilename(image_name)
extension = extension.lower()
if extension not in IMG_EXTS:
print('filered image: %s' % image_name)
return
try:
img = image.imdecode(open(image_path, 'rb').read()).astype('float32')
except Exception as ex:
print("error: ", ex)
return
if label is not None:
label_path = os.path.join(save_path, label)
else:
label_path = save_path
mkdir(label_path)
if training:
aug1 = image.HorizontalFlipAug(0.5)
aug2 = image.HorizontalFlipAug(.5)
img = image.resize_short(img, size=384, interp=2)
center_crop, _ = image.center_crop(img, size=(size, size))
new_name = "%s_%s%s" % (name, "0", extension)
cv.imwrite(os.path.join(label_path, new_name), center_crop.asnumpy())
random_crop, _ = image.random_crop(img, size=(size, size))
new_name = "%s_%s%s" % (name, "1", extension)
cv.imwrite(os.path.join(label_path, new_name), random_crop.asnumpy())
random_crop, _ = image.random_crop(img, size=(size, size))
new_name = "%s_%s%s" % (name, "2", extension)
cv.imwrite(os.path.join(label_path, new_name), random_crop.asnumpy())
random_crop, _ = image.random_crop(img, size=(size, size))
new_name = "%s_%s%s" % (name, "3", extension)
cv.imwrite(os.path.join(label_path, new_name), random_crop.asnumpy())
img_aug1 = aug1(random_crop).clip(0,255)
new_name = "%s_%s%s" % (name, "4", extension)
cv.imwrite(os.path.join(label_path, new_name), img_aug1.asnumpy())
img_aug2 = aug2(center_crop).clip(0, 255)
new_name = "%s_%s%s" % (name, "5", extension)
cv.imwrite(os.path.join(label_path, new_name), img_aug2.asnumpy())
img_resize = image.imresize(img, w=size, h=size, interp=2)
new_name = "%s_%s%s" % (name, "6", extension)
cv.imwrite(os.path.join(label_path, new_name), img_resize.asnumpy())
else:
img = image.resize_short(img, size=size)
img, _ = image.center_crop(img, size=(size, size))
new_name = "%s%s" % (name, extension)
cv.imwrite(os.path.join(label_path, new_name), img.asnumpy())
def __getitem__(self, idx):
# We don't assume up-front that annotation and image fields are in a particular (or
# guaranteed) order:
record = super(AugmentedManifestImageRecordDataset, self).__getitem__(idx)
# TODO: Support non-object annotation fields (e.g. for classification use cases)
# Boolean list of whether each field is JSON:
fieldsjson = [field[0] == b"{"[0] for field in record] # Binary in Python is weird...
njsonfields = sum(fieldsjson)
if njsonfields != 1:
raise ValueError(
f"Record had {njsonfields} JSON annotation fields out of {len(record)} total: "
"Expected exactly one"
)
# Take first JSON and first non-JSON field to be the header and the image, respectively:
label = json.loads(record[fieldsjson.index(True)])
img = record[fieldsjson.index(False)]
if self._transform is not None:
return self._transform(image.imdecode(img, self._flag), label)
return image.imdecode(img, self._flag), label
def testClassify(net, fname):
with open(fname, 'rb') as f:
img = image.imdecode(f.read())
data, _ = transformTest(img, -1, test_augs)
plt.imshow(data.transpose((1, 2, 0)).asnumpy() / 255)
data = data.expand_dims(axis=0)
out = net(data)
out = nd.SoftmaxActivation(out)
pred = int(nd.argmax(out, axis=1).asscalar())
prob = out[0][pred].asscalar()
label = train_set.synsets
return ('With prob=%f, %s'%(prob, label[pred]))
def __getitem__(self, idx):
r = self.rec.read_idx(idx)
h, im = recordio.unpack(r)
im = image.imdecode(im, self._flag)
l = h.label
pseudo_l = self.labels[idx]
if self.tform is not None:
im = self.tform(im)
return im, l, pseudo_l
def __getitem__(self, idx):
while True:
record = super().__getitem__(idx)
header, img = recordio.unpack(record)
if _check_valid_image(img):
decoded_img = image.imdecode(img, self._flag)
else:
idx = np.random.randint(low=0, high=len(self))
continue
if self._transform is not None:
return self._transform(decoded_img, header.label)
return decoded_img, header.label
def __getitem__(self, idx):
if self.use1 and not self.use2:
record = self.rec1.read_idx(self.idx1[idx])
h, im = recordio.unpack(record)
im = image.imdecode(im, self._flag)
l = h.label
if self.tform1 is not None:
im = self.tform1(im)
return im, l
elif self.use2 and not self.use1:
record = self.rec1.read_idx(self.idx2[idx])
h, im = recordio.unpack(record)
im = image.imdecode(im, self._flag)
l = h.label
if self.tform2 is not None:
im = self.tform2(im)
return im, l
else:
# online sample pairs generation
r1 = self.rec1.read_idx(self.idx1[idx[0]])
h1, im1 = recordio.unpack(r1)
im1 = image.imdecode(im1, self._flag)
l1 = h1.label
if self.tform1 is not None:
im1 = self.tform1(im1)
r2 = self.rec2.read_idx(self.idx2[idx[1]])
h2, im2 = recordio.unpack(r2)
im2 = image.imdecode(im2, self._flag)
l2 = h2.label
if self.tform2 is not None:
im2 = self.tform2(im2)
yc = 1 if l1 == l2 else 0
return im1, l1, im2, l2, yc
def classify_hotdog(net, fname):
with open(fname, 'rb') as f:
img = image.imdecode(f.read())
data, _ = transform(img, -1, test_augs)
plt.imshow(data.transpose((1, 2, 0)).asnumpy() / 255)
data = data.expand_dims(axis=0)
out = net(data.as_in_context(ctx))
out = nd.SoftmaxActivation(out)
pred = int(nd.argmax(out, axis = 1).asscalar())
prob = out[0][pred].asscalar
label = train_imgs.synsets
#print('With pred = ', pred, label[pred])
print('With prob = ', prob, label[pred])
def score_image(image_base64_string):
with open('target_image.jpg', 'wb') as f:
f.write(base64.b64decode(image_base64_string))
f.close()
with open('target_image.jpg', 'rb') as f:
img = image.imdecode(f.read())
data, _ = transform(img, -1, test_augs)
data.transpose((1, 2, 0)).asnumpy()/255
data = data.expand_dims(axis=0)
net.forward(batch([data]), is_train=False)
out = net.get_outputs()[0]
out = nd.SoftmaxActivation(out)
return int(out[0][1].asscalar() * 100)
def image_processing(im_path):
try:
with open(im_path, 'rb') as f:
im = image.imdecode(f.read())
for aug_func in augmenter:
im = aug_func(im)
im = im.transpose((2, 0, 1)).expand_dims(axis=0)
return im
except IOError as e:
print(e)
return None
def classify(fname):
train_ds = vision.ImageFolderDataset('train',
flag=1,
transform=transform_train)
with open(fname, 'rb') as f:
img = image.imdecode(f.read())
data = image.imresize(img.astype('float32') / 255, 32, 32)
data = nd.transpose(data, (2, 0, 1))
data = data.expand_dims(axis=0)
net = get_net(mx.cpu(0))
net.load_params('model.params', mx.cpu(0))
out = net(data.as_in_context(mx.cpu(0)))
out = nd.SoftmaxActivation(out)
pred = int(nd.argmax(out, axis=1).asscalar())
label = train_ds.synsets
return label[pred]
def pre_processing(self, img_path):
"""
对图片进行处理，先按照高度进行resize，resize之后如果宽度不足指定宽度，就补黑色像素，否则就强行缩放到指定宽度
:param img_path: 图片地址
:return:
"""
img = image.imdecode(
open(img_path, 'rb').read(), 1 if self.img_channel == 3 else 0)
h, w = img.shape[:2]
ratio_h = float(self.img_h) / h
new_w = int(w * ratio_h)
img = image.imresize(img, w=new_w, h=self.img_h)
# if new_w < self.img_w:
# step = nd.zeros((self.img_h, self.img_w - new_w, self.img_channel), dtype=img.dtype)
# img = nd.concat(img, step, dim=1)
return img
def imread(self, path, flag=1):
with open(path, 'rb') as f:
raw = f.read()
k = image.imdecode(raw, flag)
return k
def view_sample_predictions(self, net, loader, n, ctx):
data, label = next(iter(loader))
data = data.as_in_context(ctx=ctx)
label = label.as_in_context(ctx=ctx)
output = net(data)
pred = nd.argmax(output, axis=1)
batch_size = data.shape[0]
for i in range(min(n, batch_size)):
self.view_image(data[i])
self.view_annotated(label[i])
self.view_annotated(pred[i])
def predict(pic):
# If using different model, change below
model_name = 'ResNet50_v2'
net = get_model(model_name, pretrained=True)
classes = net.classes
# Take image and return ndarray
img = image.imdecode(pic)
# Default data preprocessing
img = transform_eval(img)
pred = net(img)
topK = 1
ind = nd.topk(pred, k=topK)[0].astype('int')
for i in range(topK):
result = [
classes[ind[i].asscalar()],
nd.softmax(pred)[i][ind[i]].asscalar()
]
return result
def lambda_handler(event, context):
try:
url = event['img_url']
response = requests.get(url)
img = imdecode(response.content)
x, img = data.transforms.presets.yolo.transform_test([img], short=320)
class_IDs, scores, bounding_boxs = net(x)
output = utils.viz.plot_bbox(img,
bounding_boxs[0],
scores[0],
class_IDs[0],
class_names=net.classes)
output.axis('off')
f = BytesIO()
output.figure.savefig(f, format='jpeg', bbox_inches='tight')
return base64.b64encode(f.getvalue())
except Exception as e:
raise Exception('ProcessingError')
