openmv图像格式不支持问题解决方案

openmv图像格式不支持问题解决方案

在openmv设置图像格式为sensor.set_framesize(sensor.VGA)时报OSError: Image format is not supported!错误!

解决方案

在光感设置中加入如下代码：

#sensor.set_windowing((240, 240)) # 240x240 center pixels of VGA

案例：

import sensor, image, time

thresholds = (100, 100, 0, 0, 0, 0) # thresholds for bright white light from IR.

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.VGA)
sensor.set_windowing((240, 240)) # 240x240 center pixels of VGA
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
clock = time.clock()
while(True):
	clock.tick()
	    img = sensor.snapshot()
	    for blob in img.find_blobs([thresholds], pixels_threshold=200, area_threshold=200, merge=True):
	        ratio = blob.w() / blob.h()
	        if (ratio >= 0.5) and (ratio <= 1.5): # filter out non-squarish blobs
	            img.draw_rectangle(blob.rect())
	            img.draw_cross(blob.cx(), blob.cy())
    print(clock.fps())