识别单个色块却输出多个颜色

[bdcm]

while(True):
clock.tick()
img_color = sensor.snapshot()

blobs_r = img_color.find_blobs([red  ], pixels_threshold = All_Pixel_Thr, merge = False, margin = 50)
blobs_g = img_color.find_blobs([green], pixels_threshold = All_Pixel_Thr, merge = False, margin = 50)
blobs_b = img_color.find_blobs([blue ], pixels_threshold = All_Pixel_Thr, merge = False, margin = 50)
for blob_r in blobs_r:
    if( blob_r[4] > All_Pixel_Thr):
        img_color.draw_cross(blob_r.cx(), blob_r.cy(), color = (255, 0, 0), size = 10, thickness = 2)
        print("------Red = ", blob_r.pixels())


for blob_g in blobs_g:
    if( blob_g[4] > All_Pixel_Thr):
        img_color.draw_cross(blob_g.cx(), blob_g.cy(), color = (0, 255, 0), size = 10, thickness = 2)
        print("------Green = ", blob_g.pixels())


for blob_b in blobs_b: 
    if( ( blob_b[4] > All_Pixel_Thr) and (Blod_Flag == 1) ):  #第二次识别蓝色
        img_color.draw_cross(blob_b.cx(), blob_b.cy(), color = (0, 0, 255), size = 10, thickness = 2)
        print("------Blue = ", blob_b.pixels())

像这样同样一个物体为什么会识别出三个颜色块的值呢，能不能只让他输出一个最符合的颜色

[kidswong999]

draw_cross会改变图像，会影响接下来的代码。删掉就行了。