彩色图片直方图均衡化C语言代码

int i;
IplImage *pImageChannel[4] = { 0, 0, 0, 0 };
pSrcImage = cvLoadImage( "test.jpg", 1 ) ; 
IplImage *pImage = cvCreateImage(cvGetSize(pSrcImage), pSrcImage->depth, pSrcImage->nChannels);
if( pSrcImage )
{
for( i = 0; i < pSrcImage->nChannels; i++ )
{
pImageChannel[i] = cvCreateImage( cvGetSize(pSrcImage), pSrcImage->depth, 1 );
}
// 信道分离
cvSplit( pSrcImage, pImageChannel[0], pImageChannel[1],
pImageChannel[2], pImageChannel[3] );
for( i = 0; i < pImage->nChannels; i++ )
{
// 直方图均衡化
cvEqualizeHist( pImageChannel[i], pImageChannel[i] );
}
// 信道组合
cvMerge( pImageChannel[0], pImageChannel[1], pImageChannel[2],
pImageChannel[3], pImage );
// ……图像显示代码（略）
// 释放资源
for( i = 0; i < pSrcImage->nChannels; i++ )
{
if ( pImageChannel[i] )
{
cvReleaseImage( &pImageChannel[i] );
pImageChannel[i] = 0;
}