如何只对一张图片进行二值化处理
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我要做什么:
我想采集一张图片就停下来,然后对它做后续各种处理比如二值化。我遇到的问题:
只操作一张图片进行二值化framebuffer里面没有反应。我想得到什么帮助:
如何只对一张图片进行二值化,而不是循环采集import sensor, image, time sensor.reset() # Reset and initialize the sensor. sensor.set_pixformat(sensor.RGB565) # Set pixel format to RGB565 (or GRAYSCALE) sensor.set_framesize(sensor.QVGA) # Set frame size to QVGA (320x240) sensor.skip_frames(time = 2000) # Wait for settings take effect. # 获得一帧图像 img = sensor.snapshot() threshold = (0,100, -128,127, 20,50)#二值化的分割阈值 img.binary([threshold])
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是因为IDE没有接收到数据。代码里是正常采集到的。
如果想显示,可以这样:
import sensor, image, time sensor.reset() # Reset and initialize the sensor. sensor.set_pixformat(sensor.RGB565) # Set pixel format to RGB565 (or GRAYSCALE) sensor.set_framesize(sensor.QVGA) # Set frame size to QVGA (320x240) sensor.skip_frames(time = 2000) # Wait for settings take effect. # 获得一帧图像 img = sensor.snapshot() threshold = (0,100, -128,127, 20,50) img.binary([threshold]) img = sensor.snapshot() while True: time.sleep(1)