那这程序要怎么改呢
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我想要按顺序识别色块,但为什么老说没定义center_x1呢,我前面有定义呀
while(True): clock.tick() # Track elapsed milliseconds between snapshots(). img = sensor.snapshot() # 拍照,返回图像 # 在图像中寻找满足颜色阈值约束(color_threshold, 数组格式), 像素阈值pixel_threshold, 色块面积大小阈值(area_threshold)的色块 #blobs = img.find_blobs([red_threshold],[green_threshold],[blue_threshold]) #blobs = img.find_blobs([red_threshold, green_threshold, blue_threshold],area_threshold=200,) #merge=True) red_blobs = img.find_blobs([red_threshold],area_threshold=200)# merge=False) green_blobs = img.find_blobs([green_threshold],area_threshold=200)# merge=False) blue_blobs=img.find_blobs([blue_threshold],area_threshold=200)#, merge=False) #if blobs: #如果找到了目标颜色 #for blob in blobs: #迭代找到的目标颜色区域 #x = blob[0] #x坐标 #y= blob[1] #y坐标 #width = blob[2] # 色块矩形的宽度 #height = blob[3] # 色块矩形的高度 #center_x = blob[5] # 色块中心点x值 #center_y = blob[6] # 色块中心点y值 #color_code = blob[8] # 颜色代码 if red_blobs: #如果找到了目标颜色 for rblob in red_blobs: #迭代找到的目标颜色区域 x1 = rblob[0] #x坐标 y1 = rblob[1] #y坐标 width1 = rblob[2] # 色块矩形的宽度 height1 = rblob[3] # 色块矩形的高度 center_x1 = rblob[5] # 色块中心点x值 center_y1 = rblob[6] # 色块中心点y值 color_code1 = rblob[8] # 颜色代码 if green_blobs: #如果找到了目标颜色 for gblob in green_blobs: #迭代找到的目标颜色区域 x2 = gblob[0] #x坐标 y2 = gblob[1] #y坐标 width2 = gblob[2] # 色块矩形的宽度 height2 = gblob[3] # 色块矩形的高度 center_x2 = gblob[5] # 色块中心点x值 center_y2 = gblob[6] # 色块中心点y值 color_code2 = gblob[8] # 颜色代码 if blue_blobs: #如果找到了目标颜色 for bblob in blue_blobs: #迭代找到的目标颜色区域 x3 = bblob[0] #x坐标 y3 = bblob[1] #y坐标 width3 = bblob[2] # 色块矩形的宽度 height3 = bblob[3] # 色块矩形的高度 center_x3 = bblob[5] # 色块中心点x值 center_y3 = bblob[6] # 色块中心点y值 color_code3 = bblob[8] # 颜色代码 # 添加颜色说明 #if color_code == red_color_code: # img.draw_string(x, y - 10, "red", color = (0xFF, 0x00, 0x00)) #elif color_code == green_color_code: # img.draw_string(x, y - 10, "green", color = (0x00, 0xFF, 0x00)) #elif color_code == blue_color_code: # img.draw_string(x, y - 10, "blue", color = (0x00, 0x00, 0xFF)) #用矩形标记出目标颜色区域 #img.draw_rectangle([x, y, width, height]) #在目标颜色区域的中心画十字形标记 #img.draw_cross(center_x, center_y) if center_x1>center_x2 and center_x2>center_x3: print(color_code1,color_code2,color_code3) if center_x1>center_x3 and center_x3>center_x2: print(color_code1,color_code3,color_code2) if center_x2>center_x3 and center_x3>center_x1: print(color_code2,color_code3,color_code1) if center_x2>center_x1 and center_x1>center_x3: print(color_code2,color_code1,color_code3) if center_x3>center_x2 and center_x2>center_x1: print(color_code3,color_code2,color_code1) if center_x3>center_x1 and center_x1>center_x2: print(color_code3,color_code1,color_code2)