I
@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())