我只想识别我roi区域的那一块,可是我的roi加进去好像没起到作用
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import sensor, image, time from pyb import UART sensor.reset() sensor.set_pixformat(sensor.RGB565) # grayscale is faster sensor.set_framesize(sensor.QQVGA) sensor.skip_frames(time = 2000) clock = time.clock() uart = UART(3,115200) uart.init(115200, bits=8, parity=None, stop=1) area= (66, 100, -31, 85, -8, 94) while(True): clock.tick() img = sensor.snapshot().lens_corr(strength = 1.8, zoom = 1.0) for c in img.find_circles(threshold = 2000, x_margin = 10, y_margin = 10, r_margin = 10, r_min = 2, r_max = 15, r_step = 2): roi=(18,7,113,106) #感兴趣区域 img.draw_circle(area,c.x(), c.y(), c.r(), color = (255, 0, 0))#画圆 用红线框出 x=int(c.x()) y=int(c.y()) data = bytearray([0xb3,x,y,0x5b]) uart.write(data) print(x,y)
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改成:
for c in img.find_circles(threshold = 2000, x_margin = 10, y_margin = 10, r_margin = 10, r_min = 2, r_max = 15, r_step = 2, roi=(18,7,113,106) ):