彩色图像RGB通道分别读到三个灰度图像

来源：互联网发布：java代码格式化工具编辑：程序博客网时间：2024/05/17 23:32

这个刚开始不知道怎么弄，后来问了下网友，原来一个spit函数搞定！

#include <cv.h>#include <highgui.h>//#include <math.h>int main(){IplImage* src = cvLoadImage( "F:\\hehua.jpg", 1 );IplImage * RedChannel = cvCreateImage( cvGetSize(src), 8, 1);IplImage * GreenChannel = cvCreateImage( cvGetSize(src), 8, 1);IplImage * BlueChannel = cvCreateImage( cvGetSize(src), 8, 1);IplImage * alphaChannel = cvCreateImage( cvGetSize(src), 8, 1);cvSplit(src,BlueChannel,GreenChannel,RedChannel,0);cvNamedWindow( "RedChannel", 1 );cvNamedWindow( "GreenChannel", 1 );cvNamedWindow( "BlueChannel", 1 );cvNamedWindow( "lphaChannel", 1 );cvShowImage( "RedChannel", RedChannel );cvShowImage( "GreenChannel", GreenChannel );cvShowImage( "BlueChannel", BlueChannel );cvShowImage( "lphaChannel", alphaChannel );cvWaitKey(0);cvReleaseImage( &RedChannel );cvReleaseImage( &GreenChannel );cvReleaseImage( & BlueChannel );cvReleaseImage( & alphaChannel );return 0;}

注意通道的顺序，因为opencv内图像存放顺序为BGR，所以再写

cvSplit(src,BlueChannel,GreenChannel,RedChannel,0);

时顺序要对！大家可以试下，呵呵！