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3rdparty/opencv-4.5.4/samples/python/mser.py 945 Bytes
f4334277   Hu Chunming   提交3rdparty
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  #!/usr/bin/env python
  
  '''
  MSER detector demo
  ==================
  
  Usage:
  ------
      mser.py [<video source>]
  
  Keys:
  -----
      ESC   - exit
  
  '''
  
  # Python 2/3 compatibility
  from __future__ import print_function
  
  import numpy as np
  import cv2 as cv
  
  import video
  import sys
  
  def main():
      try:
          video_src = sys.argv[1]
      except:
          video_src = 0
  
      cam = video.create_capture(video_src)
      mser = cv.MSER_create()
  
      while True:
          ret, img = cam.read()
          if ret == 0:
              break
          gray = cv.cvtColor(img, cv.COLOR_BGR2GRAY)
          vis = img.copy()
  
          regions, _ = mser.detectRegions(gray)
          hulls = [cv.convexHull(p.reshape(-1, 1, 2)) for p in regions]
          cv.polylines(vis, hulls, 1, (0, 255, 0))
  
          cv.imshow('img', vis)
          if cv.waitKey(5) == 27:
              break
  
      print('Done')
  
  
  if __name__ == '__main__':
      print(__doc__)
      main()
      cv.destroyAllWindows()