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  • 必看:玩转星瞳论坛了解一下图片上传,代码格式等问题。
  • 麻烦问一下,运行老是出现图片上的提示,这是什么问题



    • 0_1653036341004_微信图片_20220520164425.png

      import sensor, image, time, lcd
      import json
      from pyb import UART
      green_threshold   = (41, 66, -61, -27, 8, 43)
      red_threshold   = (41, 61, 42, 127, -128, 127)
      yellow_threshold   = ( 60 ,10,-15,20,30,80)
      sensor.set_hmirror(True)
      sensor.set_vflip(True)
      sensor.reset()
      sensor.set_pixformat(sensor.RGB565)
      sensor.set_framesize(sensor.QQVGA2)
      sensor.skip_frames(10)
      sensor.set_auto_whitebal(False)
      
      clock = time.clock()
      lcd.init() # Initialize the lcd screen.
      
      uart = UART(3, 9600)
      def find_max(blobs):
          max_size=0
          for blob in blobs:
             if blob.pixels() > max_size:
                  max_blob=blob
                  max_size = blob.pixels()
          return max_blob
      while(True):
      
          
          clock.tick()
          
      
          img = sensor.snapshot()
          blobs0 = img.find_blobs([green_threshold])
          blobs1 = img.find_blobs([red_threshold])
          blobs2 = img.find_blobs([yellow_threshold])
          if blobs0:
           max_blob=find_max(blobs0)
           img.draw_rectangle(max_blob.rect())
           img.draw_cross(max_blob.cx(), max_blob.cy())
           img.draw_string(100,100, 'x=' + str(blobs0.cx()), color=(0,0,0))
           img.draw_string(100,120, 'y=' + str(blobs0.cy()), color=(0,0,0))
       
         
           data="0"
           data_out = json.dumps(set(data))
           uart.write(data_out +'\n')
           print('you send:',data_out)
           
          elif blobs1:
           max_blob=find_max(blobs1)
           img.draw_rectangle(max_blob.rect())
           img.draw_cross(max_blob.cx(), max_blob.cy())
           data="1"
           data_out = json.dumps(set(data))
           uart.write(data_out +'\n')
           print('you send:',data_out)
          elif blobs2:
           max_blob=find_max(blobs2)
           img.draw_rectangle(max_blob.rect())
           img.draw_cross(max_blob.cx(), max_blob.cy())
           data="2"
           data_out = json.dumps(set(data))
           uart.write(data_out +'\n')
           print('you send:',data_out)
          else:
              print('not found','4')
         
          
          lcd.display(img) # Take a picture and display the image.
      


    • 40行:blobs0.cx() 改为max_blob.cx()
      41行:blobs0.cy() 改为max_blob.cy()