请问 用openmv如何判断色卡的颜色,并找出相对应颜色的小球?(小白不懂,求大佬帮忙解答一下啊) 谢谢啦!
-
-
https://book.openmv.cc/image/statistics.html
使用统计信息可以获得颜色的阈值,然后就可以调用find_blobs了
-
好的谢谢!我试试看呜呜呜,不懂可以再问问你吗
-
@kidswong99
import sensor, image, time sensor.reset() sensor.set_pixformat(sensor.RGB565) sensor.set_framesize(sensor.QVGA) sensor.skip_frames(time = 10) sensor.set_auto_whitebal(False) sensor.set_auto_gain(False) clock = time.clock() 、 ROI=(0,0,80,80) while(True): clock.tick() img = sensor.snapshot() statistics=img.get_statistics(roi=ROI) color_l=statistics.l_mode() color_a=statistics.a_mode() color_b=statistics.b_mode() print(color_l,color_a,color_b) img.draw_rectangle(ROI) pyb.delay(2000) img = sensor.snapshot().lens_corr(1.8) for c in img.find_circles(threshold = 3500, x_margin = 10, y_margin = 10, r_margin = 10, r_min = 2, r_max = 100, r_step = 2): area = (c.x()-c.r(), c.y()-c.r(), 2*c.r(), 2*c.r()) statistics = img.get_statistics(roi=area)#像素颜色统计 print(statistics) if 20<statistics.l_mode()<100 and 15<statistics.a_mode()<127 and 15<statistics.b_mode()<12:#if the circle is red img.draw_circle(c.x(), c.y(), c.r(), color = (255, 0, 0))#识别到的红色圆形用红色的圆框出来 if 30<statistics.l_mode()<100 and -64<statistics.a_mode()<-8 and -32<statistics.b_mode()<32:#if the corcle is green img.draw_circle(c.x(),c.y(),c.r(),color=(0,255,0)) if 0<statistics.l_mode()<15 and 0<statistics.a_mode()<40 and -80<statistics.b_mode()<-20:#if the circle is blue img.draw_circle(c.x(),c.y(),c.r(),color=(0,0,255)) else: img.draw_rectangle(area, color = (255, 255, 255)) #将非红色的圆用白色的矩形框出来 print("FPS %f" % clock.fps())