def main(argv=None):
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
elif FLAGS.spp:
model = yolo_v3.yolo_v3_spp
else:
model = yolo_v3.yolo_v3
classes = load_coco_names(FLAGS.class_names)
# placeholder for detector inputs
inputs = tf.placeholder(
tf.float32, [None, FLAGS.size, FLAGS.size, 3], "inputs")
with tf.variable_scope('detector'):
detections = model(inputs, len(classes), data_format=FLAGS.data_format)
load_ops = load_weights(tf.global_variables(
scope='detector'), FLAGS.weights_file)
# Sets the output nodes in the current session
boxes = detections_boxes(detections)
with tf.Session() as sess:
sess.run(load_ops)
savepb(sess, FLAGS.output_graph)
def main(argv=None):
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
else:
model = yolo_v3.yolo_v3
classes = load_coco_names(FLAGS.class_names)
# placeholder for detector inputs
# any size > 320 will work here
inputs = tf.placeholder(tf.float32, [None, 416, 416, 3])
with tf.variable_scope('detector'):
detections = model(inputs, len(classes),
data_format=FLAGS.data_format)
load_ops = load_weights(tf.global_variables(
scope='detector'), FLAGS.weights_file)
saver = tf.train.Saver(tf.global_variables(scope='detector'))
with tf.Session() as sess:
sess.run(load_ops)
save_path = saver.save(sess, save_path=FLAGS.ckpt_file)
print('Model saved in path: {}'.format(save_path))
def build_detection_graph():
input_data = tf.placeholder(dtype=tf.uint8, shape=[FLAGS.size, FLAGS.size, 3], name='input_data')
input_data = tf.expand_dims(input_data, 0)
input_data = tf.cast(input_data, tf.float32)
input_data = input_data / 255.
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
elif FLAGS.spp:
model = yolo_v3.yolo_v3_spp
else:
model = yolo_v3.yolo_v3
classes = load_coco_names(FLAGS.class_names)
# yolo_model = model(cfgs.class_num, cfgs.anchors)
with tf.variable_scope('detector'):
detections = model(input_data, len(classes), data_format=FLAGS.data_format)
print(detections.get_shape().as_list())
boxes, pred_confs, pred_probs = tf.split(detections, [4, 1, len(classes)], axis=-1)
center_x, center_y, width, height = tf.split(boxes, [1, 1, 1, 1], axis=-1)
x_min = center_x - width / 2
y_min = center_y - height / 2
x_max = center_x + width / 2
y_max = center_y + height / 2
pred_boxes = tf.concat([x_min, y_min, x_max, y_max], axis=-1)
pred_scores = pred_confs * pred_probs
boxes, scores, labels = gpu_nms(pred_boxes, pred_scores, len(classes), max_boxes=20, score_thresh=0.3,
nms_thresh=0.4)
boxes = tf.identity(boxes, name='boxes')
scores = tf.identity(scores, name='scores')
labels = tf.identity(labels, name='labels')
return boxes, scores, labels
def main(argv=None):
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
elif FLAGS.spp:
model = yolo_v3.yolo_v3_spp
else:
model = yolo_v3.yolo_v3
classes = load_coco_names(FLAGS.class_names)
# placeholder for detector inputs
inputs = tf.placeholder(tf.float32, [None, FLAGS.size, FLAGS.size, 3],
"inputs")
with tf.variable_scope('detector'):
detections = model(
inputs, len(classes), data_format=FLAGS.data_format
) # 得到yolov3整体模型（包含模型输出(?, 10647, (num_classes + 5))）
load_ops = load_weights(tf.global_variables(scope='detector'),
FLAGS.weights_file)
# Sets the output nodes in the current session
boxes = detections_boxes(
detections) # 1，将整体输出分解为box结果与概率数值结果；2、将结果名称定义为output_boxes再放入graph中
with tf.Session() as sess:
sess.run(load_ops)
reader = pywrap_tensorflow.NewCheckpointReader(checkpoint_path)
var_to_shape_map = reader.get_variable_to_shape_map()
for key in var_to_shape_map:
print("tensor_name: ", key)
freeze_graph(sess, FLAGS.output_graph)
def main(input_path, DEBUG):
gpu_options = tf.GPUOptions(
per_process_gpu_memory_fraction=FLAGS.gpu_memory_fraction)
config = tf.ConfigProto(
gpu_options=gpu_options,
log_device_placement=False,
)
classes = load_coco_names(FLAGS.class_names)
frozenGraph = load_graph(FLAGS.frozen_model)
boxes, inputs = get_boxes_and_inputs_pb(frozenGraph)
boxes_list = []
with tf.Session(graph=frozenGraph, config=config) as sess:
for item in input_path:
start = clock()
FLAGS.input_img = item
img = Image.open(FLAGS.input_img)
img_resized = letter_box_image(img, FLAGS.size, FLAGS.size, 128)
img_resized = img_resized.astype(np.float32)
detected_boxes = sess.run(boxes, feed_dict={inputs: [img_resized]})
filtered_boxes = non_max_suppression(
detected_boxes,
confidence_threshold=FLAGS.conf_threshold,
iou_threshold=FLAGS.iou_threshold)
boxes_list.append(filtered_boxes)
if DEBUG:
draw_boxes(filtered_boxes, img, classes,
(FLAGS.size, FLAGS.size), True)
print(filtered_boxes)
print("Execution Time : {} / #Symbols : {} / Path : {}".format(
clock() - start, len(filtered_boxes), item))
sess.close()
tf.reset_default_graph()
return boxes_list, classes, FLAGS.size
def main(argv=None):
gpu_options = tf.GPUOptions(
per_process_gpu_memory_fraction=FLAGS.gpu_memory_fraction)
config = tf.ConfigProto(
gpu_options=gpu_options,
log_device_placement=False,
)
img = Image.open(FLAGS.input_img)
img_resized = letter_box_image(img, FLAGS.size, FLAGS.size, 128)
img_resized = img_resized.astype(np.float32)
classes = load_coco_names(FLAGS.class_names)
if FLAGS.frozen_model:
t0 = time.time()
frozenGraph = load_graph(FLAGS.frozen_model)
print("Loaded graph in {:.2f}s".format(time.time() - t0))
#print(frozenGraph.inputs)
#print(frozenGraph.outputs)
boxes, inputs = get_boxes_and_inputs_pb(frozenGraph)
with tf.Session(graph=frozenGraph, config=config) as sess:
t0 = time.time()
detected_boxes = sess.run(boxes, feed_dict={inputs: [img_resized]})
else:
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
elif FLAGS.spp:
model = yolo_v3.yolo_v3_spp
else:
model = yolo_v3.yolo_v3
boxes, inputs = get_boxes_and_inputs(model, len(classes), FLAGS.size,
FLAGS.data_format)
saver = tf.train.Saver(var_list=tf.global_variables(scope='detector'))
with tf.Session(config=config) as sess:
t0 = time.time()
saver.restore(sess, FLAGS.ckpt_file)
print('Model restored in {:.2f}s'.format(time.time() - t0))
t0 = time.time()
detected_boxes = sess.run(boxes, feed_dict={inputs: [img_resized]})
filtered_boxes = non_max_suppression(
detected_boxes,
confidence_threshold=FLAGS.conf_threshold,
iou_threshold=FLAGS.iou_threshold)
print("Predictions found in {:.2f}s".format(time.time() - t0))
draw_boxes(filtered_boxes, img, classes, (FLAGS.size, FLAGS.size), True)
img.save(FLAGS.output_img)
def main(argv=None):
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
print ('doing tiny')
else:
model = yolo_v3.yolo_v3
classes = load_coco_names(FLAGS.class_names)
print ('num classes',len(classes))
# placeholder for detector inputs
inputs = tf.placeholder(tf.float32, [None, FLAGS.size, FLAGS.size, 3], "inputs")
with tf.variable_scope('detector'):
detections = model(inputs, len(classes), data_format=FLAGS.data_format)
load_ops = load_weights(tf.global_variables(scope='detector'), FLAGS.weights_file)
#detect_1.shape = (?, 507, 85)
#detect_2.shape = (?, 2028, 85)
#detect_3.shape = (?, 8112, 85)
#detections.shape = (?, 10647, 85)
#detections = Tensor("detector/yolo-v3/detections:0", shape=(?, 10647, 85), dtype=float32)
print("detections.shape =", detections.shape)
print(detections)
print(detections.name)
# Sets the output nodes in the current session
boxes = detections_boxes(detections)
with tf.Session() as sess:
sess.run(load_ops)
freeze_graph(sess, FLAGS.output_graph, FLAGS.tiny)
def main(argv=None):
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
elif FLAGS.spp:
model = yolo_v3.yolo_v3_spp
else:
model = yolo_v3.yolo_v3
classes = load_coco_names(FLAGS.class_names)
# 定义网络对外的接口, 服务器端是自动base64解码，所以拿到的数据已经解码过了
# 但还需将byte格式转换为图像矩阵格式
jpeg_vec_bytes = tf.placeholder(tf.string, shape=None, name=None)
jpeg_sca_bytes = tf.reshape(jpeg_vec_bytes, []) #
jpeg_ndarr = tf.image.decode_jpeg(jpeg_sca_bytes, fancy_upscaling=False) # 从字符串变为数组，且将标量形式字节流解码成图片，！！！这里参数必须设置成False否则不能与客服端的结果匹配
jpeg_ndarr = tf.image.resize_images(jpeg_ndarr, [FLAGS.size, FLAGS.size], method=0) # 将图片拉伸成希望的尺寸
inputs = tf.reshape(jpeg_ndarr, [1, FLAGS.size, FLAGS.size, 3], "inputs")
# placeholder for detector inputs 原址输入参量处
# inputs = tf.placeholder(tf.float32, [None, FLAGS.size, FLAGS.size, 3], "inputs")
# 加载yolov3模型
with tf.variable_scope('detector'):
detections = model(inputs, len(classes), data_format=FLAGS.data_format) # 得到yolov3整体模型（包含模型输出(?, 10647, (num_classes + 5))）
load_ops = load_weights(tf.global_variables(scope='detector'), FLAGS.weights_file)
# Sets the output nodes in the current session
boxes = detections_boxes(detections) # 1，将整体输出分解为box结果与概率数值结果；2、将结果名称定义为output_boxes再放入graph中
# checkpoint读取
with tf.Session() as sess:
sess.run(load_ops)
reader = pywrap_tensorflow.NewCheckpointReader(checkpoint_path)
var_to_shape_map = reader.get_variable_to_shape_map()
for key in var_to_shape_map:
print("tensor_name: ", key)
#############################################
# output_node_names = ["output_boxes","inputs",]
# output_node_names = ",".join(output_node_names)
#
# output_graph_def = tf.graph_util.convert_variables_to_constants(
# sess,tf.get_default_graph().as_graph_def(),output_node_names.split(","))
#
# with tf.gfile.GFile(FLAGS.output_graph, "wb") as f:
# f.write(output_graph_def.SerializeToString())
# print("{} ops written to {}.".format(len(output_graph_def.node), FLAGS.output_graph))
#############################################
# pb_savemodel模式存储
export_path = 'models/pb/20191226'
builder = tf.saved_model.builder.SavedModelBuilder(export_path)
images = tf.saved_model.utils.build_tensor_info(jpeg_vec_bytes)
boxes = tf.saved_model.utils.build_tensor_info(boxes)
prediction_signature = (
tf.saved_model.signature_def_utils.build_signature_def(
inputs={'images': images},
outputs={'scores': boxes},
method_name=tf.saved_model.signature_constants.PREDICT_METHOD_NAME))
builder.add_meta_graph_and_variables(
sess, [tf.saved_model.tag_constants.SERVING],
signature_def_map={'predict_images': prediction_signature},
main_op=tf.tables_initializer(),
strip_default_attrs=True)
builder.save()
def main(_argv):
img = Image.open(FLAGS.input_img)
img_resized = np.asarray(img.resize(size=(IMG_H, IMG_W)), dtype=np.float32)
img_resized = img_resized / 255.0
classes = load_coco_names(FLAGS.class_names)
model = create_model(IMG_H, yolo_anchors, yolo_anchor_masks, len(classes))
print("=> loading weights ...")
model.load_weights(FLAGS.weights)
print("=> sucessfully loaded weights ")
start = time.time()
boxes, scores, labels, nums = model(img_resized[np.newaxis, ...],
training=False)
boxes, scores, labels, nums = boxes.numpy(), scores.numpy(), labels.numpy(
), nums.numpy()
#boxes, scores, labels = model(img_resized[np.newaxis, ...])
print("=> nms on the number of boxes= %d time=%.2f ms" %
(nums, 1000 * (time.time() - start)))
image = draw_boxes2(img,
boxes[0],
scores[0],
labels[0],
nums[0],
classes, [IMG_H, IMG_W],
show=True)
#image = draw_boxes3(img, boxes, scores, labels, classes, [IMG_H, IMG_W], show=True)
image.save(FLAGS.output_img)
def show_camera(sess, boxes, inputs):
# To flip the image, modify the flip_method parameter (0 and 2 are the most common)
classes = load_coco_names(FLAGS.class_names)
print(gstreamer_pipeline(flip_method=0))
cap = cv2.VideoCapture(gstreamer_pipeline(flip_method=0),
cv2.CAP_GSTREAMER)
if cap.isOpened():
window_handle = cv2.namedWindow('CSI Camera', cv2.WINDOW_AUTOSIZE)
while cv2.getWindowProperty('CSI Camera', 0) >= 0:
ret_val, img = cap.read()
cv2_im = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
pil_im = Image.fromarray(cv2_im)
img_resized = letter_box_image(pil_im, FLAGS.size, FLAGS.size, 128)
img_resized = img_resized.astype(np.float32)
detected_boxes = sess.run(boxes, feed_dict={inputs: [img_resized]})
filtered_boxes = non_max_suppression(
detected_boxes,
confidence_threshold=FLAGS.conf_threshold,
iou_threshold=FLAGS.iou_threshold)
draw_boxes(filtered_boxes, pil_im, classes,
(FLAGS.size, FLAGS.size), True)
img = np.array(pil_im)
img = cv2.cvtColor(img, cv2.COLOR_RGB2BGR)
cv2.imshow('CSI Camera', img)
keyCode = cv2.waitKey(30) & 0xff
if keyCode == 27:
break
cap.release()
cv2.destroyAllWindows()
else:
print('Unable to open camera')
def main(argv=None):
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
else:
model = yolo_v3.yolo_v3
config = configparser.ConfigParser(strict=False)
config.read(FLAGS.model_config)
classes = load_coco_names(FLAGS.class_names)
# placeholder for detector inputs
inputs = tf.placeholder(tf.float32, [
None,
config.getint("net", "height"),
config.getint("net", "width"), 3
], "inputs")
with tf.variable_scope('detector'):
detections = model(inputs, len(classes), data_format=FLAGS.data_format)
load_ops = load_weights(tf.global_variables(scope='detector'),
FLAGS.weights_file)
# Sets the output nodes in the current session
boxes = detections_boxes(detections)
with tf.Session() as sess:
sess.run(load_ops)
freeze_graph(sess, FLAGS.output_graph)
def main(argv=None):
physical_devices = tf.config.experimental.list_physical_devices('GPU')
if len(physical_devices) > 0:
tf.config.experimental.set_memory_growth(physical_devices[0], True)
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
elif FLAGS.spp:
model = yolo_v3.yolo_v3_spp
else:
model = yolo_v3.yolo_v3
classes = load_coco_names(FLAGS.class_names)
# placeholder for detector inputs
# any size > 320 will work here
inputs = tf.placeholder(tf.float32, [None, 416, 416, 3])
with tf.variable_scope('detector'):
detections = model(inputs, len(classes), data_format=FLAGS.data_format)
load_ops = load_weights(tf.global_variables(scope='detector'),
FLAGS.weights_file)
saver = tf.train.Saver(tf.global_variables(scope='detector'))
with tf.Session() as sess:
sess.run(load_ops)
save_path = saver.save(sess, save_path=FLAGS.ckpt_file)
print('Model saved in path: {}'.format(save_path))
def main(argv=None):
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
else:
model = yolo_v3.yolo_v3
# Load coco classes
classes = load_coco_names(FLAGS.class_names)
# Placeholder for detector inputs any size > 320 will work here
inputs = tf.placeholder(tf.float32, [None, 416, 416, 3])
with tf.variable_scope('detector'):
# Initialize model with required input size.
detections = model(inputs, len(classes), data_format=FLAGS.data_format)
# Load weights file into the model
load_ops = load_weights(tf.global_variables(scope='detector'),
FLAGS.weights_file)
# Initialize model saver module
saver = tf.train.Saver(tf.global_variables(scope='detector'))
with tf.Session() as sess:
# Run load_weight function
sess.run(load_ops)
# Save the loaded model into a proper TF file.
save_path = saver.save(sess, save_path=FLAGS.ckpt_file)
print('Model saved in path: {}'.format(save_path))
def main(argv=None):
# GPU配置
# gpu_options = tf.GPUOptions(per_process_gpu_memory_fraction=args.gpu_memory_fraction)
# config = tf.ConfigProto(gpu_options=gpu_options,log_device_placement=False,)
# 类别、视频或图像输入
classes = load_coco_names(args.class_names)
vid = cv2.VideoCapture(args.input_video)
video_frame_cnt = int(vid.get(7)) # AVI:10148 RSTP: 中无总帧数属性 视频文件中的帧数
timeF = 10 # 分帧率 130ms配合2
fpsnum = int(vid.get(1)) # 基于以0开始的被捕获或解码的帧索引
if (fpsnum % timeF == 0):
for i in range(video_frame_cnt):
ret, img_ori = vid.read()
# 图像填充
img_ori = cv2.cvtColor(img_ori, cv2.COLOR_BGR2RGB)
img_ori = Image.fromarray(img_ori) # CV2图片转PIL
img_resized = letter_box_image(img_ori,img_ori.size[1], img_ori.size[0], args.size, args.size, 128)
img_resized = img_resized.astype(np.float32)
# 图像插值
# img = cv2.resize(img_ori, (args.size, args.size))
# img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB) # cv2默认为bgr顺序
# img_resized = np.asarray(img, np.float32)
# 编码方式1
# scipy.misc.imsave(args.temp_img, img_resized)
# _, jpeg_bytes = base64_encode_img(args.temp_img)
# 编码方式2
img_encode = cv2.imencode('.jpg', img_resized)[1]
data_encode = np.array(img_encode)
jpeg_bytes = data_encode.tostring()
start_time = time.time()
# 服务器通讯配置
channel = grpc.insecure_channel(args.server)
stub = prediction_service_pb2.PredictionServiceStub(channel)
request = predict_pb2.PredictRequest()
request.model_spec.name = 'yolov3_2'
request.model_spec.signature_name = 'predict_images'
# 等待服务器答复
request.inputs['images'].CopyFrom(tf.contrib.util.make_tensor_proto(jpeg_bytes, shape=[1]))
response = stub.Predict(request, 10.0)
# 对返回值进行操作
results = {}
for key in response.outputs:
tensor_proto = response.outputs[key]
nd_array = tf.contrib.util.make_ndarray(tensor_proto)
results[key] = nd_array
detected_boxes = results['scores']
# nms计算
filtered_boxes = non_max_suppression(detected_boxes,confidence_threshold=args.conf_threshold,iou_threshold=args.iou_threshold)
end_time = time.time()
difference_time = end_time - start_time # 网络运行时间
# 画图
draw_boxes(filtered_boxes, img_ori, classes, (args.size, args.size), True)
# 输出图像
cv2charimg = cv2.cvtColor(np.array(img_ori), cv2.COLOR_RGB2BGR) # PIL图片转cv2 图片
cv2.putText(cv2charimg, '{:.2f}ms'.format((difference_time) * 1000), (40, 40), 0,
fontScale=1, color=(0, 255, 0), thickness=2)
cv2.imshow('image', cv2charimg)
if cv2.waitKey(1) & 0xFF == ord('q'): # 视频退出
break
def main(argv=None):
gpu_options = tf.GPUOptions(
per_process_gpu_memory_fraction=FLAGS.gpu_memory_fraction)
config = tf.ConfigProto(
gpu_options=gpu_options,
log_device_placement=False,
)
classes = load_coco_names(FLAGS.class_names)
t0 = time.time()
frozenGraph = load_graph(FLAGS.frozen_model)
print("Loaded graph in {:.2f}s".format(time.time() - t0))
boxes, inputs = get_boxes_and_inputs_pb(frozenGraph)
with tf.Session(graph=frozenGraph, config=config) as sess:
t0 = time.time()
print(FLAGS.input_img)
cap = cv2.VideoCapture(FLAGS.input_img)
# cap = cv2.VideoCapture(0)
fps = cap.get(cv2.CAP_PROP_FPS)
width = cap.get(cv2.CAP_PROP_FRAME_WIDTH)
height = cap.get(cv2.CAP_PROP_FRAME_HEIGHT)
videoWriter = cv2.VideoWriter(
"output.mp4", cv2.VideoWriter_fourcc('m', 'p', '4', 'v'), fps,
(int(width), int(height)))
while (cap.isOpened()):
ret, frame = cap.read()
if ret == True:
frame = cv2.flip(frame, 0)
img = Image.fromarray(cv2.cvtColor(frame, cv2.COLOR_BGR2RGB))
img_resized = letter_box_image(img, FLAGS.size, FLAGS.size,
128)
img_resized = img_resized.astype(np.float32)
detected_boxes = sess.run(boxes,
feed_dict={inputs: [img_resized]})
filtered_boxes = non_max_suppression(
detected_boxes,
confidence_threshold=FLAGS.conf_threshold,
iou_threshold=FLAGS.iou_threshold)
print("Predictions found in {:.2f}s".format(time.time() - t0))
draw_boxes(filtered_boxes, img, classes,
(FLAGS.size, FLAGS.size), True)
fimg = cv2.cvtColor(np.array(img), cv2.COLOR_RGB2BGR)
cv2.imshow("show", fimg)
videoWriter.write(fimg)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
else:
break
cap.release()
videoWriter.release()
def __init__(self,
tiny=False,
cls_path='coco.names',
img_size=(416, 416),
data_format='NHWC',
frozen_model='',
ckpt_path='saved_model/model.ckpt',
conf_threshold=0.5,
iou_threshold=0.4,
gpu_memory_fraction=0.2,
is_training=False):
""" Wrapper class for the YOLO v3 detector.
:param tiny: if you want to use tiny yolo
:param cls_path: file storing detection classes
:param img_size: tuple storing image size
:param data_format: Data format: NCHW (gpu only) / NHWC
:param ckpt_path: path to model checkpoint file
"""
self.gpu_options = tf.GPUOptions(
per_process_gpu_memory_fraction=gpu_memory_fraction)
self.config = tf.ConfigProto(gpu_options=self.gpu_options,
log_device_placement=True)
self.is_training = is_training
self.frozen_model = frozen_model
self.gpu_memory_fraction = gpu_memory_fraction
self.tiny = tiny
self.size = img_size
self.data_format = data_format
self.ckpt_file = ckpt_path
self.conf_threshold = conf_threshold
self.iou_threshold = iou_threshold
if self.tiny:
self.model = yolo_v3_tiny.yolo_v3_tiny
else:
self.model = yolo_v3.yolo_v3
self.classes = load_coco_names(cls_path)
self.boxes, self.inputs = get_boxes_and_inputs(self.model,
len(self.classes),
self.size,
self.data_format)
self.saver = tf.train.Saver(var_list=tf.global_variables(
scope='detector'))
self.sess = tf.Session(config=self.config)
t0 = time.time()
self.saver.restore(self.sess, self.ckpt_file)
print('Model restored in {:.2f}s'.format(time.time() - t0))
def __init__(self,
tiny=False,
cls_file='coco.names',
img_size=(416, 416),
data_format='NHWC',
ckpt_file='./saved_model/model.ckpt',
conf_threshold=0.5,
iou_threshold=0.4):
""" Wrapper class for the YOLO v3 detector.
:param tiny: if you want to use tiny yolo
:param cls_file: file storing detection classes
:param img_size: tuple storing image size
:param data_format: Data format: NCHW (gpu only) / NHWC
:param ckpt_file: path to model checkpoint file
"""
self.tiny = tiny
self.size = img_size
self.data_format = data_format
# Temporary solution
self.ckpt_file = ckpt_file if not tiny else '.' + ckpt_file.split(
'.')[1] + '-tiny.ckpt'
self.conf_threshold = conf_threshold
self.iou_threshold = iou_threshold
if self.tiny:
self.model = yolo_v3_tiny.yolo_v3_tiny
else:
self.model = yolo_v3.yolo_v3
self.classes = load_coco_names(cls_file)
self.inputs = tf.placeholder(tf.float32,
[1, self.size[0], self.size[1], 3])
with tf.variable_scope('detector'):
self.detections = self.model(self.inputs,
len(self.classes),
data_format=self.data_format)
self.saver = tf.train.Saver(var_list=tf.global_variables(
scope='detector'))
self.boxes = detections_boxes(self.detections)
self.sess = tf.Session()
self.saver.restore(self.sess, self.ckpt_file)
print('Model restored.')
def __init__(self):
config = tf.ConfigProto()
config.gpu_options.allow_growth = True
config.gpu_options.per_process_gpu_memory_fraction = 0.5
self.classes = load_coco_names('coco.names')
self.model = yolo_v3.yolo_v3
self.boxes, self.inputs = get_boxes_and_inputs(self.model, len(self.classes), 416, 'NHWC')
self.saver = tf.train.Saver(var_list=tf.global_variables(scope='detector'))
self.sess = tf.Session(config=config)
t0 = time.time()
self.saver.restore(self.sess, './saved_model/model.ckpt')
print('Model restored in {:.3f}s'.format(time.time()-t0))
def main(argv=None):
classes = load_coco_names(args.class_names)
model = create_model(IMG_H, yolo_anchors, yolo_anchor_masks, len(classes))
load_ops = load_weights(model, args.weights_file)
"""
Saving Subclassed Models
https://www.tensorflow.org/alpha/guide/keras/saving_and_serializing
Sequential models and Functional models are datastructures that represent a DAG of layers.
As such, they can be safely serialized and deserialized.
https://medium.com/tensorflow/what-are-symbolic-and-imperative-apis-in-tensorflow-2-0-dfccecb01021
"""
model.save_weights(args.tf2_weights)
def main(argv=None):
img = Image.open('out/images/19.png')
# img = Image.open('city.png')
img_resized = letter_box_image(img, size, size, 128)
img_resized = img_resized.astype(np.float32)
classes = load_coco_names('coco.names')
if frozen_model:
t0 = time.time()
frozenGraph = load_graph(frozen_model)
print("Loaded graph in {:.2f}s".format(time.time() - t0))
boxes, inputs = get_boxes_and_inputs_pb(frozenGraph)
with tf.Session(graph=frozenGraph) as sess:
t0 = time.time()
detected_boxes = sess.run(boxes, feed_dict={inputs: [img_resized]})
else:
if tiny:
model = yolo_v3_tiny.yolo_v3_tiny
else:
model = yolo_v3.yolo_v3
boxes, inputs = get_boxes_and_inputs(model, len(classes), size,
data_format)
saver = tf.train.Saver(var_list=tf.global_variables(scope='detector'))
with tf.Session() as sess:
t0 = time.time()
saver.restore(sess, ckpt_file)
print('Model restored in {:.2f}s'.format(time.time() - t0))
t0 = time.time()
detected_boxes = sess.run(boxes, feed_dict={inputs: [img_resized]})
filtered_boxes = non_max_suppression(detected_boxes,
confidence_threshold=conf_threshold,
iou_threshold=iou_threshold)
print("Predictions found in {:.2f}s".format(time.time() - t0))
draw_boxes(filtered_boxes, img, classes, (size, size), True)
img.save('out_check.png')
def main(argv=None):
#gpu_options = tf.GPUOptions(per_process_gpu_memory_fraction=FLAGS.gpu_memory_fraction)
gpu_options = tf.GPUOptions(allow_growth=True)
config = tf.ConfigProto(
gpu_options=gpu_options,
log_device_placement=False,
)
img = Image.open(FLAGS.input_img)
classes = load_coco_names(FLAGS.class_names)
if FLAGS.frozen_model:
t0 = time.time()
frozenGraph = load_graph(FLAGS.frozen_model)
print("Loaded graph in {:.2f}s".format(time.time() - t0))
boxes, inputs = get_boxes_and_inputs_pb(frozenGraph)
with tf.Session(graph=frozenGraph, config=config) as sess:
t0 = time.time()
show_camera(sess, boxes, inputs)
else:
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
else:
model = yolo_v3.yolo_v3
boxes, inputs = get_boxes_and_inputs(model, len(classes), FLAGS.size,
FLAGS.data_format)
saver = tf.train.Saver(var_list=tf.global_variables(scope='detector'))
with tf.Session(config=config) as sess:
t0 = time.time()
saver.restore(sess, FLAGS.ckpt_file)
print('Model restored in {:.2f}s'.format(time.time() - t0))
t0 = time.time()
def main(argv=None):
img = Image.open(args.input_img)
img_resized = np.asarray(img.resize(size=(IMG_H, IMG_W)), dtype=np.float32)
img_resized = img_resized/255.0
classes = load_coco_names(args.class_names)
model = yolo_v3.YoloV3(len(classes), data_format=args.data_format)
inputs = tf.keras.Input(shape=(IMG_H, IMG_W, 3))
output = model(inputs, training=False)
print("=> loading weights ...")
model.load_weights(args.weights)
print("=> sucessfully loaded weights ")
start = time.time()
boxes, scores, labels = model.detector(img_resized[np.newaxis, ...], score_thresh=args.score_threshold, iou_thresh=args.iou_threshold)
print("=> nms on the number of boxes= %d time=%.2f ms" %(len(boxes), 1000*(time.time()-start)))
image = draw_boxes(img, boxes, scores, labels, classes, [IMG_H, IMG_W], show=True)
image.save(args.output_img)
def __init__(self,
filename,
camera_id,
model,
label,
params,
prob_threshold=0.5,
iou_threshold=0.5):
with open(params, "r") as readFile:
self.params = json.load(readFile)
if filename:
self.video = cv2.VideoCapture(filename)
else:
#self.video = cv2.VideoCapture(camera_id + cv2.CAP_DSHOW)
self.video = cv2.VideoCapture(camera_id)
self.video.set(cv2.CAP_PROP_FRAME_WIDTH, self.params["input_w"])
self.video.set(cv2.CAP_PROP_FRAME_HEIGHT, self.params["input_h"])
self.fps = self.video.get(cv2.CAP_PROP_FPS)
# Initialize model
self.interpreter = tflite.Interpreter(
model_path=model,
experimental_delegates=[load_delegate("libedgetpu.so.1.0")])
self.interpreter.allocate_tensors()
# Get input and output tensors.
self.input_details = self.interpreter.get_input_details()
self.output_details = self.interpreter.get_output_details()
# Dequantization
self.scale, self.zero_point = self.input_details[0]['quantization']
self.scale1, self.zero_point1 = self.output_details[0]['quantization']
self.scale2, self.zero_point2 = self.output_details[1]['quantization']
self.classes = load_coco_names(label)
self.colors = [(random.randint(0, 255), random.randint(0, 255),
random.randint(0, 255))
for _ in range(len(self.classes))]
self.prob_threshold = prob_threshold
self.iou_threshold = iou_threshold
def main(argv=None):
gpu_options = tf.GPUOptions(
per_process_gpu_memory_fraction=FLAGS.gpu_memory_fraction)
config = tf.ConfigProto(
gpu_options=gpu_options,
log_device_placement=False,
)
cap = cv2.VideoCapture()
cap.open(0)
classes = load_coco_names(FLAGS.class_names)
if FLAGS.frozen_model:
t0 = time.time()
frozenGraph = load_graph(FLAGS.frozen_model)
print("Loaded graph in {:.2f}s".format(time.time() - t0))
boxes, inputs = get_boxes_and_inputs_pb(frozenGraph)
with tf.Session(graph=frozenGraph, config=config) as sess:
while True:
ret, img = cap.read()
img_resized = cv2.resize(img, (int(416), int(416)))
t0 = time.time()
detected_boxes = sess.run(boxes,
feed_dict={inputs: [img_resized]})
filtered_boxes = non_max_suppression(
detected_boxes,
confidence_threshold=FLAGS.conf_threshold,
iou_threshold=FLAGS.iou_threshold)
print("Predictions found in {:.2f}s".format(time.time() - t0))
# img = draw_boxes(filtered_boxes, img, classes, (416, 416), True)
print(filtered_boxes)
cv2.imshow("Output", img)
def get_score_from_image(img_fp, gpu_options, config, model):
img = Image.open(img_fp)
img_resized = letter_box_image(img, FLAGS.size, FLAGS.size, 128)
img_resized = img_resized.astype(np.float32)
classes = load_coco_names(FLAGS.class_names)
inference_start_time = time.time()
if FLAGS.frozen_model:
boxes, inputs = get_boxes_and_inputs_pb(model)
with tf.Session(graph=model, config=config) as sess:
detected_boxes = sess.run(boxes, feed_dict={inputs: [img_resized]})
else:
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
elif FLAGS.spp:
model = yolo_v3.yolo_v3_spp
else:
model = yolo_v3.yolo_v3
boxes, inputs = get_boxes_and_inputs(model, len(classes), FLAGS.size,
FLAGS.data_format)
saver = tf.train.Saver(var_list=tf.global_variables(scope='detector'))
with tf.Session(config=config) as sess:
saver.restore(sess, FLAGS.ckpt_file)
detected_boxes = sess.run(boxes, feed_dict={inputs: [img_resized]})
total_inference_time = time.time() - inference_start_time
filtered_boxes = non_max_suppression(
detected_boxes,
confidence_threshold=FLAGS.conf_threshold,
iou_threshold=FLAGS.iou_threshold)
return get_person_scores(filtered_boxes,
classes), round(total_inference_time * 1000, 3)
def main():
if tiny:
model = yolo_v3_tiny.yolo_v3_tiny
else:
model = yolo_v3.yolo_v3
classes = load_coco_names(class_names)
# placeholder for detector inputs
inputs = tf.placeholder(tf.float32, [None, size, size, 3], "inputs")
with tf.variable_scope('detector'):
detections = model(inputs, len(classes), data_format=data_format)
load_ops = load_weights(tf.global_variables(scope='detector'),
weights_file)
# Sets the output nodes in the current session
boxes = detections_boxes(detections)
with tf.Session() as sess:
sess.run(load_ops)
freeze_graph(sess, output_graph)
def __init__(self):
#TODO load classifier
gpu_options = tf.GPUOptions(
per_process_gpu_memory_fraction=options['gpu'])
print('GPU options defined')
self.config = tf.ConfigProto(
gpu_options=gpu_options,
log_device_placement=False,
)
dir_path = os.path.dirname(os.path.abspath(__file__))
self.classes = load_coco_names(
os.path.join(dir_path, options['labels']))
t0 = time.time()
self.frozenGraph = load_graph(
os.path.join(dir_path, options['frozen_model']))
self.sess = tf.Session(graph=self.frozenGraph, config=self.config)
print("Loaded graph in {:.2f}s".format(time.time() - t0))
pass
def main(argv=None):
if FLAGS.tiny:
model = yolo_v3_tiny.yolo_v3_tiny
else:
model = yolo_v3.yolo_v3
img = Image.open(FLAGS.input_img)
img_resized = img.resize(size=(FLAGS.size, FLAGS.size))
classes = load_coco_names(FLAGS.class_names)
# placeholder for detector inputs
inputs = tf.placeholder(tf.float32, [1, FLAGS.size, FLAGS.size, 3])
with tf.variable_scope('detector'):
detections = model(inputs, len(classes), data_format=FLAGS.data_format)
saver = tf.train.Saver(var_list=tf.global_variables(scope='detector'))
boxes = detections_boxes(detections)
with tf.Session() as sess:
saver.restore(sess, FLAGS.ckpt_file)
print('Model restored.')
detected_boxes = sess.run(
boxes,
feed_dict={inputs: [np.array(img_resized, dtype=np.float32)]})
filtered_boxes = non_max_suppression(
detected_boxes,
confidence_threshold=FLAGS.conf_threshold,
iou_threshold=FLAGS.iou_threshold)
draw_boxes(filtered_boxes, img, classes, (FLAGS.size, FLAGS.size))
img.save(FLAGS.output_img)
import numpy as np
import tensorflow as tf
from PIL import Image
import time
import utils
import cv2
import os
# 本项目实现用户整体检测，获取在图像中的高度像素值，用于根据三角形近似定力计算用户身高,参照物选择尽量选取与用户身高等同或较大物品，所得结果会更为准确。
# input_image = './1/101115_4d9192a403db450da0b400e6116e686a.png'
input_image = './calibresult.png'
class_names = './person.names'
input_size = 416
frozen_model = './yolov3_voc_person.pb'
conf_threshold = 0.5
iou_threshold = 0.4
classes = utils.load_coco_names(class_names)
out_image = './person.jpg'
t0 = time.time()
frozenGraph = utils.load_graph(frozen_model)
print("Loaded graph in {:.2f}s".format(time.time() - t0))
sess = tf.Session(graph=frozenGraph)
# image = cv2.imread(input_image)
# image = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
# image = Image.fromarray(image.astype('uint8')).convert('RGB')
# 上面三步等同于下面的Image.open()操作
image = Image.open(input_image)
img_resized = utils.letter_box_image(image, input_size, input_size, 128)
img_resized = img_resized.astype(np.float32)
boxes, inputs = utils.get_boxes_and_inputs_pb(frozenGraph)
# Function to change from cv2 to pil and resizing
def prepare_image(self,img):
cv2_im = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
pil_im = Image.fromarray(cv2_im)
img_resized = letter_box_image(pil_im, FLAGS.size, FLAGS.size, 128)
img_resized = img_resized.astype(np.float32)
return img_resized,pil_im
def colors(classes):
farbe =dict()
for i,classe in enumerate(classes):
farbe[i] = tuple(np.random.randint(0, 256, 3))
return farbe
# Load the classes file and the graph
classes = load_coco_names(FLAGS.class_names)
frozenGraph = load_graph(FLAGS.frozen_model)
colors_array = colors(classes)
# Initialize the pipeline for the camera
# To flip the image, modify the flip_method parameter (0 and 2 are the most common)
print(gstreamer_pipeline(flip_method=2))
cap = cv2.VideoCapture(gstreamer_pipeline(flip_method=2), cv2.CAP_GSTREAMER)
# Prepare the cv2 window
if cap.isOpened():
window_handle = cv2.namedWindow('CSI Camera', cv2.WINDOW_AUTOSIZE)
# Create session and load graph
# Configure the tensorflow session, especially with allow_growth, so it doesnt fails to get memory
