怎么把输出的xyhm，调用出来做一个判断呢？
import sensor, image, time
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QQVGA)
sensor.skip_frames(time = 2000)
clock = time.clock()
while(True):
clock.tick()
img = sensor.snapshot()
for r in img.find_rects(threshold = 10000):
img.draw_rectangle(r.rect(), color = (255, 0, 0))
for p in r.corners(): img.draw_circle(p[0], p[1], 5, color = (0, 255, 0))
print(r)
识别二维码时，一离较远就识别不到，是光线问题吗？请问程序上有没有一些可以优化的地方
import sensor, image
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QQVGA) # can be QVGA on M7...
sensor.skip_frames(30)
sensor.set_auto_gain(False) # must turn this off to prevent image washout...
while(True):
img = sensor.snapshot()
img.lens_corr(1.8) # strength of 1.8 is good for the 2.8mm lens.
for code in img.find_qrcodes():
print(code)
怎么修改这个二维码的程序使二维码的内容在LCD中显示（纯小白，请大佬揉碎了喂嘴里）
import sensor, image
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QQVGA) # can be QVGA on M7...
sensor.skip_frames(30)
sensor.set_auto_gain(False) # must turn this off to prevent image washout...
while(True):
img = sensor.snapshot()
img.lens_corr(1.8) # strength of 1.8 is good for the 2.8mm lens.
for code in img.find_qrcodes():
print(code)
关于底层代码问题，如何看实现方法的动作代码
我想知道img，sensor，time这三个包的底层函数中方法，就是关于包里面的方法如何实现的底层代码，我应该在哪里找啊？？请赐教！！！
openmv引脚怎么读取高低电平？
@kidswong999 代码怎样的？
import sensor, image, time
from pyb import Pin
p_out = Pin('P7', Pin.OUT_PP)
p_out.value(1) 这样跟arduino板子连起来，在arduino板子那个引脚处没有接受到高电平信号
这个识别外形的程序有什么问题吗
import sensor, image, time
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)
clock = time.clock()
Auto=(0,20,100,100)
while(True):
clock.tick()
img = sensor.snapshot()
for c in img.find_circles(threshold = 1600, x_margin = 10 , y_margin = 10, r_margin = 5, roi=Auto):
img.draw_circle(c.x(), c.y(), c.r(), color = (255, 0, 0))
print(c)
print("FPS %f" % clock.fps())为什么img没有定义
import sensor,image,time,pyb,ujson
import math
from pyb import UART
from pyb import LED
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QQVGA)
sensor.skip_frames(time = 2000)
sensor.set_auto_gain(False)
sensor.set_auto_whitebal(False)
clock = time.clock()
red_threshold = (0,100, 0,127, 0,127)
while(True):
img.binary([red_threshold])
img.dilate(2)
请在这里粘贴代码
在模板匹配里怎么设置roi大小啊？
import time, sensor, image
from image import SEARCH_EX, SEARCH_DS
sensor.reset()
sensor.set_contrast(1)
sensor.set_gainceiling(16)
sensor.set_framesize(sensor.QQVGA)
sensor.set_pixformat(sensor.GRAYSCALE)
template = image.Image("/11.pgm")
clock = time.clock()
while (True):
clock.tick()
img = sensor.snapshot()
r = img.find_template(template, 0.70, step=4, search=SEARCH_EX) #， roi=(10, 0, 60, 60))
if r:
img.draw_rectangle(r)
print(clock.fps())
为什么我这一段代码显示的十字总在左上角？
import sensor, image
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QQVGA)
sensor.skip_frames(30)
sensor.set_auto_gain(False)
while(True):
img = sensor.snapshot()
img.lens_corr(1.8)
blobs = img.find_qrcodes()
if blobs:
for b in blobs:
img.draw_rectangle(b[0:4])
img.draw_cross(b[5], b[6],size=5,color=(0,0,0))
sensor.snapshot().save("example.jpg")
for code in img.find_qrcodes():
print(code)