@kidswong999 重新插拔一下USB接口 ，就正常了

@kidswong999 确实是是按照例程来的，线也接的没问题

@kidswong999 你好 我的也是这个问题，代码一样，OPENMV可以接收到数据但是发不出去，求教

@kidswong999

嗯嗯 刚才忘了加冒号。。。改过之后变成这样了，说帧缓存区空间不够？这是怎么回事啊

import sensor, image, time

sensor.reset()
sensor.set_framesize(sensor.QVGA)
sensor.set_pixformat(sensor.RGB565)


Line_threshold = (60, 100, -18, 32, -33, 56) # L A B

sensor.skip_frames(time = 1000)
clock = time.clock()

min_degree = 0
max_degree = 179
#img_raw = sensor.snapshot().lens_corr(1.8).save('test.bmp')




img_op=image.Image('123.bmp',copy_to_fb=True)


#time.sleep(3000)
img_op.binary([Line_threshold])

#img_op.erode(2)

img_op.dilate(1)
img_op.erode(1)
for l in img_op.find_line_segments(merge_distance=10, max_theta_differance=2):
#if (min_degree <= l.theta()) and (l.theta() <= max_degree):
    img_op.draw_line(l.line(), color = (255, 0, 0))
    print(l.theta())



sensor.flush()

time.sleep(100)

import sensor, image, time

sensor.reset()
sensor.set_framesize(sensor.QVGA)
sensor.set_pixformat(sensor.RGB565)


Line_threshold = (60, 100, -18, 32, -33, 56) # L A B

sensor.skip_frames(time = 1000)
clock = time.clock()

min_degree = 0
max_degree = 179
#img_raw = sensor.snapshot().lens_corr(1.8).save('test.bmp')




img_op=image.Image('123.bmp',copy_to_fb=True)


    #time.sleep(3000)
img_op.binary([Line_threshold])

#img_op.erode(2)

img_op.dilate(1)
img_op.erode(1)
for l in img_op.find_line_segments(merge_distance=2, max_theta_differance=2) #(x_stride=3,y_stride=3,threshold = 1000, theta_margin = 10, rho_margin = 20):
        #if (min_degree <= l.theta()) and (l.theta() <= max_degree):

        img_op.draw_line(l.line(), color = (255, 0, 0))

        print(l.theta())



sensor.flush()

time.sleep(100)

请问这是什么错误呀

哦哦，好滴好滴，另外还有我检测到的直线，很不理想，经常会检测出很多其他的不存在的直线
就像这样的。

图上，黑色的线周围有一些灰色的像素点，不知道是怎么回事0.0......求教

import sensor, image, time

sensor.reset()
sensor.set_framesize(sensor.QVGA)
sensor.set_pixformat(sensor.RGB565)


Line_threshold = (60, 100, -18, 32, -33, 56) # L A B

sensor.skip_frames(time = 1000)
clock = time.clock()

min_degree = 0
max_degree = 179
#img_raw = sensor.snapshot().lens_corr(1.8).save('123.bmp')




img_op=image.Image('123.bmp',copy_to_fb=True)


    #time.sleep(3000)
img_op.binary([Line_threshold])

#img_op.erode(2)

img_op.dilate(1)
img_op.erode(1)
for l in img_op.find_lines (threshold = 3300, theta_margin = 1000, rho_margin = 10):
        if (min_degree <= l.theta()) and (l.theta() <= max_degree):

           # img_op.draw_line(l.line(), color = (255, 0, 0))

            print(l.theta())



sensor.flush()

time.sleep(100)

@kidswong999 谢谢老哥，整好啦！！！