在图像子窗口中,用边缘检测报错
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想在物体附近进行边缘检测,所以先剪切了图像,可是出现了报错
import sensor, image, time sensor.reset() sensor.set_pixformat(sensor.GRAYSCALE) sensor.set_framesize(sensor.VGA) sensor.skip_frames(time = 2000) clock = time.clock() threshold = [150, 250] # Middle L, A, B values. while(True): clock.tick() img = sensor.snapshot() for blob in img.find_blobs([threshold], pixels_threshold=100, area_threshold=100, merge=True, margin=10): #img.draw_rectangle(blob.rect()) img = sensor.set_windowing([blob.cx(),blob.cy(),blob.w(),blob.h()]) img.find_edges(image.EDGE_SIMPLE , threshold=(50, 80)) print(blob.x(),blob.y())
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sensor.set_windowing不会返回图像
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