孔祥月的博客

opencv之读入图片代码import numpy as npimport cv2#读入图像 0以灰度模式读入，默认可以不写，以彩色模式读入img = cv2.imread("1.jpg",0)#显示图像cv2.imshow('image',img) #第一个参数为窗口名#设置等待时长，0无限时长cv2.waitKey(2000)#删除建立的窗口cv2.destroyA...

opencv之读入图片键入键盘活动代码import numpy as np;import cv2img = cv2.imread("1.jpg",0);cv2.imshow("image",img)k=cv2.waitKey(0) #等待并监听键盘活动if k ==27: cv2.destroyAllWindows()elif k == ord('s'): #关键点在这...

opencv之绘图函数绘图函数介绍画直线cv2.line函数示例代码cv2.line(img,(0,0),(511,511),(255,0,0),5)参数解释第一个参数是所要画的图像，第二个参数是直线开端，第三个参数是直线的终点，最后是直线的颜色，255,0,0为蓝色，最后为像素宽度等。画圆cv2.circle函数示例代码cv2.ci...

opencv之录视频代码import numpy as np;import cv2cap = cv2.VideoCapture(0);fourcc = cv2.VideoWriter_fourcc(*'XVID')out = cv2.VideoWriter('output.avi',fourcc,20.0,(640,480))while (cap.isOpened()): ...

python之截取图片利用opencv代码import numpy as np;import cv2;img = cv2.imread('1.jpg',1);cutimg = img[85:400,85:400]cv2.imshow('origin',img)cv2.imshow('image',cutimg);cv2.imwrite('cut.jpg',cutimg)k=...