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mmdeploy/demo/python/image_segmentation.py

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# Copyright (c) OpenMMLab. All rights reserved.
import argparse
import cv2
import numpy as np
from mmdeploy_python import Segmentor
def parse_args():
parser = argparse.ArgumentParser(
description='show how to use sdk python api')
parser.add_argument(
'model_path', help='the directory path of mmdeploy model')
parser.add_argument('image_path', help='the path of an image')
parser.add_argument(
'--device-name', default='cpu', help='the name of device, cuda or cpu')
args = parser.parse_args()
return args
def get_palette(num_classes=256):
state = np.random.get_state()
# random color
np.random.seed(42)
palette = np.random.randint(0, 256, size=(num_classes, 3))
np.random.set_state(state)
return [tuple(c) for c in palette]
def main():
args = parse_args()
img = cv2.imread(args.image_path)
segmentor = Segmentor(args.model_path, args.device_name, 0)
seg = segmentor([img])[0]
palette = get_palette()
color_seg = np.zeros((seg.shape[0], seg.shape[1], 3), dtype=np.uint8)
for label, color in enumerate(palette):
color_seg[seg == label, :] = color
# convert to BGR
color_seg = color_seg[..., ::-1]
img = img * 0.5 + color_seg * 0.5
img = img.astype(np.uint8)
cv2.imwrite('output_segmentation.png', img)
if __name__ == '__main__':
main()