6hgw 发布的帖子

import sensor, image, time

sensor.reset()
sensor.set_pixformat(sensor.RGB565) # grayscale is faster
sensor.set_framesize(sensor.QQVGA)
sensor.skip_frames(time = 2000)
sensor.set_auto_whitebal(False)
clock = time.clock()

while(True):
    clock.tick()

  
    img = sensor.snapshot().lens_corr(1.8)
 2, r_max = 100, r_step = 2):
        #img.draw_circle(c.x(), c.y(), c.r(), color = (255, 0, 0))
        #print(c)
    roi=(20,20,160,80)
    juxing=img.find_rects(roi,threshold = 15000)
    for r in juxing:
        img.draw_rectangle(r.rect(), color = (255, 0, 0))
        #for p in r.corners(): img.draw_circle(p[0], p[1], 5, color = (0, 255, 0))
            #print(r)

    #yuan=img.find_circles(threshold = 2000, x_margin = 10, y_margin = 10, r_margin = 10,r_min = 2, r_max = 100, r_step = 2)
    print('矩形有',len(juxing))
    print("FPS %f" % clock.fps())

@mrqg 没有 如果不加曝光那句话 就是没问题的 ，加了就一直闪动

# Color Tracking Thresholds (L Min, L Max, A Min, A Max, B Min, B Max)
# The below thresholds track in general red/green things. You may wish to tune them...
thresholds = [(63, 72, 27, 127, -128, 127), # generic_red_thresholds -> index is 0 so code == (1 << 0)
              (30, 100, -64, -8, -32, 32), # generic_green_thresholds -> index is 1 so code == (1 << 1)
              (97, 100, -5, 33, -3, 30)] # generic_blue_thresholds -> index is 2 so code == (1 << 2)
# Codes are or'ed together when "merge=True" for "find_blobs".

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
sensor.set_auto_exposure(False, 1500)#这里设置曝光时间
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" must be set to merge overlapping color blobs for color codes.

while(True):
    clock.tick()
    img = sensor.snapshot()
    is_red=img.find_blobs([thresholds[0]],roi=(30,10,200,50),pixels_threshold=200, area_threshold=200)
    is_green=img.find_blobs([thresholds[1]],roi=(30,10,200,50),pixels_threshold=200, area_threshold=200)
    is_yellow=img.find_blobs([thresholds[2]],roi=(30,10,200,50),pixels_threshold=200, area_threshold=200)
    if is_red:
        print(1)
    if is_green:
        print(2)
    if is_yellow:
        print(3)

@kidswong999 我加了曝光 设置但是加了以后摄像头拍摄的灯光处就会一闪一闪的
怎么解决

用get_pixels获取图片中的像素点的颜色值 但是怎么判断是什么颜色？