星瞳实验室APP,快速收到回复
  • 我们只解决官方正版的OpenMV的问题(STM32),其他的分支有很多兼容问题,我们无法解决。
  • 如果有产品硬件故障问题,比如无法开机,论坛很难解决。可以直接找售后维修
  • 发帖子之前,请确认看过所有的视频教程,https://singtown.com/learn/ 和所有的上手教程http://book.openmv.cc/
  • 每一个新的提问,单独发一个新帖子
  • 帖子需要目的,你要做什么?
  • 如果涉及代码,需要报错提示全部代码文本,请注意不要贴代码图片
  • 必看:玩转星瞳论坛了解一下图片上传,代码格式等问题。
  • 为什么扫码条形码和二维码摄像头拍出来的东西很模糊连信息都识别不出来用的是上手教程里面给的代码信息根本识别不出来



    • 
      sensor.reset()
      sensor.set_pixformat(sensor.GRAYSCALE)
      sensor.set_framesize(sensor.VGA) # High Res!
      sensor.set_windowing((640, 120)) # V Res of 80 == less work (40 for 2X the speed).
      sensor.skip_frames(time=2000)
      sensor.set_auto_gain(False)  # must turn this off to prevent image washout...
      sensor.set_auto_whitebal(False)  # must turn this off to prevent image washout...
      clock = time.clock()
      
      # Barcode detection can run at the full 640x480 resolution of your OpenMV Cam's
      # OV7725 camera module. Barcode detection will also work in RGB565 mode but at
      # a lower resolution. That said, barcode detection requires a higher resolution
      # to work well so it should always be run at 640x480 in grayscale...
      
      def barcode_name(code):
          if(code.type() == image.EAN2):
              return "EAN2"
          if(code.type() == image.EAN5):
              return "EAN5"
          if(code.type() == image.EAN8):
              return "EAN8"
          if(code.type() == image.UPCE):
              return "UPCE"
          if(code.type() == image.ISBN10):
              return "ISBN10"
          if(code.type() == image.UPCA):
              return "UPCA"
          if(code.type() == image.EAN13):
              return "EAN13"
          if(code.type() == image.ISBN13):
              return "ISBN13"
          if(code.type() == image.I25):
              return "I25"
          if(code.type() == image.DATABAR):
              return "DATABAR"
          if(code.type() == image.DATABAR_EXP):
              return "DATABAR_EXP"
          if(code.type() == image.CODABAR):
              return "CODABAR"
          if(code.type() == image.CODE39):
              return "CODE39"
          if(code.type() == image.PDF417):
              return "PDF417"
          if(code.type() == image.CODE93):
              return "CODE93"
          if(code.type() == image.CODE128):
              return "CODE128"
      
      while(True):
          clock.tick()
          img = sensor.snapshot()
          codes = img.find_barcodes()
          for code in codes:
              img.draw_rectangle(code.rect())
              print_args = (barcode_name(code), code.payload(), (180 * code.rotation()) / math.pi, code.quality(), clock.fps())
              print("Barcode %s, Payload \"%s\", rotation %f (degrees), quality %d, FPS %f" % print_args)
          if not codes:
              print("FPS %f" % clock.fps())
      请在这里粘贴代码
      


    • 要对焦距。看一下视频:https://singtown.com/learn/50017/