#!/usr/bin/env python
'''
You can download the converted pb model from https://www.dropbox.com/s/qag9vzambhhkvxr/lip_jppnet_384.pb?dl=0
or convert the model yourself.
Follow these steps if you want to convert the original model yourself:
To get original .meta pre-trained model download https://drive.google.com/file/d/1BFVXgeln-bek8TCbRjN6utPAgRE0LJZg/view
For correct convert .meta to .pb model download original repository https://github.com/Engineering-Course/LIP_JPPNet
Change script evaluate_parsing_JPPNet-s2.py for human parsing
1. Remove preprocessing to create image_batch_origin:
with tf.name_scope("create_inputs"):
...
Add
image_batch_origin = tf.placeholder(tf.float32, shape=(2, None, None, 3), name='input')
2. Create input
image = cv2.imread(path/to/image)
image_rev = np.flip(image, axis=1)
input = np.stack([image, image_rev], axis=0)
3. Hardcode image_h and image_w shapes to determine output shapes.
We use default INPUT_SIZE = (384, 384) from evaluate_parsing_JPPNet-s2.py.
parsing_out1 = tf.reduce_mean(tf.stack([tf.image.resize_images(parsing_out1_100, INPUT_SIZE),
tf.image.resize_images(parsing_out1_075, INPUT_SIZE),
tf.image.resize_images(parsing_out1_125, INPUT_SIZE)]), axis=0)
Do similarly with parsing_out2, parsing_out3
4. Remove postprocessing. Last net operation:
raw_output = tf.reduce_mean(tf.stack([parsing_out1, parsing_out2, parsing_out3]), axis=0)
Change:
parsing_ = sess.run(raw_output, feed_dict={'input:0': input})
5. To save model after sess.run(...) add:
input_graph_def = tf.get_default_graph().as_graph_def()
output_node = "Mean_3"
output_graph_def = tf.graph_util.convert_variables_to_constants(sess, input_graph_def, output_node)
output_graph = "LIP_JPPNet.pb"
with tf.gfile.GFile(output_graph, "wb") as f:
f.write(output_graph_def.SerializeToString())'
'''
import argparse
import os.path
import numpy as np
import cv2 as cv
backends = (cv.dnn.DNN_BACKEND_DEFAULT, cv.dnn.DNN_BACKEND_INFERENCE_ENGINE, cv.dnn.DNN_BACKEND_OPENCV)
targets = (cv.dnn.DNN_TARGET_CPU, cv.dnn.DNN_TARGET_OPENCL, cv.dnn.DNN_TARGET_OPENCL_FP16, cv.dnn.DNN_TARGET_MYRIAD)
def preprocess(image):
"""
Create 4-dimensional blob from image and flip image
:param image: input image
"""
image_rev = np.flip(image, axis=1)
input = cv.dnn.blobFromImages([image, image_rev], mean=(104.00698793, 116.66876762, 122.67891434))
return input
def run_net(input, model_path, backend, target):
"""
Read network and infer model
:param model_path: path to JPPNet model
:param backend: computation backend
:param target: computation device
"""
net = cv.dnn.readNet(model_path)
net.setPreferableBackend(backend)
net.setPreferableTarget(target)
net.setInput(input)
out = net.forward()
return out
def postprocess(out, input_shape):
"""
Create a grayscale human segmentation
:param out: network output
:param input_shape: input image width and height
"""
# LIP classes
# 0 Background
# 1 Hat
# 2 Hair
# 3 Glove
# 4 Sunglasses
# 5 UpperClothes
# 6 Dress
# 7 Coat
# 8 Socks
# 9 Pants
# 10 Jumpsuits
# 11 Scarf
# 12 Skirt
# 13 Face
# 14 LeftArm
# 15 RightArm
# 16 LeftLeg
# 17 RightLeg
# 18 LeftShoe
# 19 RightShoe
head_output, tail_output = np.split(out, indices_or_sections=[1], axis=0)
head_output = head_output.squeeze(0)
tail_output = tail_output.squeeze(0)
head_output = np.stack([cv.resize(img, dsize=input_shape) for img in head_output[:, ...]])
tail_output = np.stack([cv.resize(img, dsize=input_shape) for img in tail_output[:, ...]])
tail_list = np.split(tail_output, indices_or_sections=list(range(1, 20)), axis=0)
tail_list = [arr.squeeze(0) for arr in tail_list]
tail_list_rev = [tail_list[i] for i in range(14)]
tail_list_rev.extend([tail_list[15], tail_list[14], tail_list[17], tail_list[16], tail_list[19], tail_list[18]])
tail_output_rev = np.stack(tail_list_rev, axis=0)
tail_output_rev = np.flip(tail_output_rev, axis=2)
raw_output_all = np.mean(np.stack([head_output, tail_output_rev], axis=0), axis=0, keepdims=True)
raw_output_all = np.argmax(raw_output_all, axis=1)
raw_output_all = raw_output_all.transpose(1, 2, 0)
return raw_output_all
def decode_labels(gray_image):
"""
Colorize image according to labels
:param gray_image: grayscale human segmentation result
"""
height, width, _ = gray_image.shape
colors = [(0, 0, 0), (128, 0, 0), (255, 0, 0), (0, 85, 0), (170, 0, 51), (255, 85, 0),
(0, 0, 85), (0, 119, 221), (85, 85, 0), (0, 85, 85), (85, 51, 0), (52, 86, 128),
(0, 128, 0), (0, 0, 255), (51, 170, 221), (0, 255, 255),(85, 255, 170),
(170, 255, 85), (255, 255, 0), (255, 170, 0)]
segm = np.stack([colors[idx] for idx in gray_image.flatten()])
segm = segm.reshape(height, width, 3).astype(np.uint8)
segm = cv.cvtColor(segm, cv.COLOR_BGR2RGB)
return segm
def parse_human(image, model_path, backend=cv.dnn.DNN_BACKEND_OPENCV, target=cv.dnn.DNN_TARGET_CPU):
"""
Prepare input for execution, run net and postprocess output to parse human.
:param image: input image
:param model_path: path to JPPNet model
:param backend: name of computation backend
:param target: name of computation target
"""
input = preprocess(image)
input_h, input_w = input.shape[2:]
output = run_net(input, model_path, backend, target)
grayscale_out = postprocess(output, (input_w, input_h))
segmentation = decode_labels(grayscale_out)
return segmentation
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Use this script to run human parsing using JPPNet',
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('--input', '-i', required=True, help='Path to input image.')
parser.add_argument('--model', '-m', default='lip_jppnet_384.pb', help='Path to pb model.')
parser.add_argument('--backend', choices=backends, default=cv.dnn.DNN_BACKEND_DEFAULT, type=int,
help="Choose one of computation backends: "
"%d: automatically (by default), "
"%d: Intel's Deep Learning Inference Engine (https://software.intel.com/openvino-toolkit), "
"%d: OpenCV implementation" % backends)
parser.add_argument('--target', choices=targets, default=cv.dnn.DNN_TARGET_CPU, type=int,
help='Choose one of target computation devices: '
'%d: CPU target (by default), '
'%d: OpenCL, '
'%d: OpenCL fp16 (half-float precision), '
'%d: VPU' % targets)
args, _ = parser.parse_known_args()
if not os.path.isfile(args.model):
raise OSError("Model not exist")
image = cv.imread(args.input)
output = parse_human(image, args.model, args.backend, args.target)
winName = 'Deep learning human parsing in OpenCV'
cv.namedWindow(winName, cv.WINDOW_AUTOSIZE)
cv.imshow(winName, output)
cv.waitKey()