颜色识别时摄像头总是偏红色怎么办？

[tree_18]

import sensor, image, time, sys

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, 500)#这里设置曝光时间

Max_dict={'R':0,'G':0,'B':0}
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

thresholds = [(100, 0, -32, 6, -128, 127), # 红色
              (58, 100, -2, 127, -11, 21),# 绿色
              (100, 9, -49, 19, 12, 67)]  # 蓝色

clock = time.clock()


Curr_number=0
while(Curr_number<20):
    clock.tick()
    img = sensor.snapshot()
    for i in range(3):
        blobs = img.find_blobs([thresholds[i]], pixels_threshold=30, area_threshold=30, merge=True)
        if blobs:
            max_blob_sum=find_max(blobs).pixels()
            if i==0:
                Max_dict['R']=max_blob_sum
            elif i==1:
                Max_dict['G']=max_blob_sum
            elif i==2:
                Max_dict['B']=max_blob_sum
            '''
            for blob in blobs:
                if blob.code():
                    img.draw_cross(blob.cx(), blob.cy())
                    img.draw_rectangle(blob.rect())
            '''
    Curr_number+=1

    print(clock.fps())
#(Max_dict, key=Max_dict.get()  #出错 未解决
print(Max_dict)
print(max(Max_dict, key=lambda k: Max_dict[k]))

我已经关闭了白平衡之类的东西了。我下面垫的是纯正的A4白纸，很明显偏红！

[kidswong999]

你可以直接运行hello world。

[tree_18]

@kidswong999 恩恩，运行了，这样没解决呀

[kidswong999]

那我建议你联系卖家，维修。