4. 代码倒数第四行，运行后说是没有定义，问一下在哪里定义?
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    • 代码倒数第四行，运行后说是没有定义，问一下在哪里定义?

    • G
       

      #Single Color RGB565 Blob Tracking Example
#
#This example shows off single color RGB565 tracking using the OpenMv Cam.

import sensor, image, time

#Color Tracking Thresholds (L Min, L Max, A Min, A Max, B Min, B Max,)
#The below thresholds track in general red/green/blue things. You may wish to tune them..
thresholds = (30,100,15,127,15,127) # generic_red_thresholds


sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
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" area
# 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()
    for blob in img.find_blobs([thresholds[threshold_index]], pixels_threshold = 200,area_threshold = 200, merge=True):
        img.draw_rectangle(blob.rect())
        img.draw_cross(blob.cx(),blob.cy())
        print(clock.fps())
      0

    • for blob in img.find_blobs([thresholds[threshold_index]], pixels_threshold = 200,area_threshold = 200, merge=True):

      改为

      for blob in img.find_blobs([thresholds], pixels_threshold = 200,area_threshold = 200, merge=True):

      0