程序有时候可以用，有时候两三秒之后就会卡死。

[r15t]

# Blob Detection Example
#








# This example shows off how to use the find_blobs function to find color
# blobs in the image. This example in particular looks for dark green objects.

import sensor, image, time,utime,lcd
from pyb import Servo
from pyb import Pin
# For color tracking to work really well you should ideally be in a very, very,
# very, controlled enviroment where the lighting is constant...
red_threshold_01 = (0, 24, -22, 43, -8, 41)

#设置红色的阈值，括号里面的数值分别是L A B 的最大值和最小值（minL, maxL, minA,
# maxA, minB, maxB），LAB的值在图像左侧三个坐标图中选取。如果是灰度图，则只需
#设置（min, max）两个数字即可。

# You may need to tweak the above settings for tracking green things...
# Select an area in the Framebuffer to copy the color settings.

sensor.reset() # Initialize the camera sensor.
sensor.set_pixformat(sensor.RGB565) # use RGB565.
sensor.set_framesize(sensor.QQVGA) # use QQVGA for speed.
lcd.init() # Initialize the lcd screen.
sensor.skip_frames(50) # Let new settings take affect.
p_in00 = Pin("P5", Pin.IN)#设置p0输入
p_in00.value()
sensor.set_auto_whitebal(False)
#关闭白平衡。白平衡是默认开启的，在颜色识别中，需要关闭白平衡。
clock = time.clock() # Tracks FPS.
start = utime.ticks_ms() # get value of millisecond counter  获取毫秒计数器的值

while(True):
    sensor.set_vflip(True) #垂直方向翻转
    if(p_in00.value()==0):
        print(p_in00.value())
        while(True):
            clock.tick() # Track elapsed milliseconds between snapshots().
            img = sensor.snapshot() # Take a picture and return the image.
            #  pixels_threshold=100, area_threshold=100
            blobs = img.find_blobs([red_threshold_01], area_threshold=150)

            if blobs:
            #如果找到了目标颜色

                for b in blobs:
                #迭代找到的目标颜色区域
                    # Draw a rect around the blob.

                    if(blobs[0].pixels())>6000:
                        tt=utime.ticks_diff(utime.ticks_ms(), start)
                        print(utime.ticks_diff(utime.ticks_ms(), start))
                        img.draw_rectangle(b[0:4]) # rect
                        #用矩形标记出目标颜色区域
                        img.draw_cross(b[5], b[6]) # cx, cy
                        #在目标颜色区域的中心画十字形标记
                        while(True):
                            lcd.display(img.draw_string(20,0, "%d"%tt,200,2))
                            lcd.display(sensor.snapshot()) # Take a picture and display the image.
        #print(clock.fps()) # Note: Your OpenMV Cam runs about half as fast while
        # connected to your computer. The FPS should increase once disconnected.

```![0_1600781440466_QLBF0`0`7}KRUMHUIS5R817.png](https://fcdn.singtown.com/8c273a79-0a34-45b7-9334-bf0159cd5015.png)

[r15t]

在同学的openmv就不会卡顿，但是我用新的就不行，一会好，一会就两三秒卡死。求大佬帮忙解决。

[r15t]

这个代码目的就是识别到颜色，并从开始到识别到颜色这段时间进行及时

[kidswong999]

代码逻辑的问题，

你的程序有死循环，还没有break，当然不会跳出。