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  • 为什么显示blobs列表里面没有这个对象?



    • import sensor, image, time
      
      green = (30, 100, -88, -10, -32, 54) # thresholds for bright white light from IR.
      red = (30, 100, 15, 127, 15, 16) 
      blue = (0, 30, 0, 64, -128, 0)
      sensor.reset()
      sensor.set_pixformat(sensor.RGB565)
      sensor.set_framesize(sensor.VGA)
      sensor.set_windowing((240, 240)) # 240x240 center pixels of VGA
      sensor.skip_frames(time = 2000)
      sensor.set_auto_gain(False) # must be turned off for color tracking
      sensor.set_auto_whitebal(False) # must be turned off for color tracking
      clock = time.clock()
      
      # Only blobs that with more pixels than "pixel_threshold" and more area than "area_threshold" are
      # returned by "find_blobs" below. Change "pixels_threshold" and "area_threshold" if you change the
      # camera resolution. "merge=True" merges all overlapping blobs in the image.
      
      while(True):
          clock.tick()
          img=sensor.snapshot()
          red_blobs = img.find_blobs([red])
          
          color_blobs = img.find_blobs([red,green,blue])
          
          c=color_blobs.code()
          print(c)
      

      0_1573375601995_1573375548(1).png



    • 你应该

      for b in color_blobs:
          b.code()