opencv对头发图片进行颜色渲染源代码

利用opencv库对头发图片进行颜色渲染，实现染发效果。 完整的源码工程文件，可直接编译运行。

// OpenCV includes
#include 
#include 
#include 

#include 

int main（int argc char **argv）
{
	if （argc < 5）
	{
		std::cout << “Usage: “ << argv[0] << “ hairFileName R G B\n“;
		std::cout << “Ex: “ << argv[0] << “ ../exampleHair.png 255 0 255\n“;
		return -1;
	}
	uchar r = atoi（argv[2]）;
	uchar g = atoi（argv[3]）;
	uchar b = atoi（argv[4]）;

	cv::Mat hairMat = cv::imread（argv[1] -1）;
	cv::Mat hairBak = hairMat.clone（）;

	int size = hairMat.cols*hairMat.rows * 3 / 2;

	cv::Mat colorMat（4 4 CV_8UC3）;
	for （int i = 0; i	{
		for （int j = 0; j		{
			cv::Vec3b& c = colorMat.at（i j）;
			c[2] = r;
			c[1] = g;
			c[0] = b;
		}
	}

	cv::Mat colorYuvMat;
	colorYuvMat.release（）;
	cv::cvtColor（colorMat colorYuvMat CV_BGR2YUV_I420）;
	uchar u = colorYuvMat.data[colorMat.cols*colorMat.rows];
	uchar v = colorYuvMat.data[colorMat.cols*colorMat.rows * 5 / 4];

	int posu = hairMat.cols*hairMat.rows;
	int posv = hairMat.cols*hairMat.rows * 5 / 4;

	cv::Mat hairYuvMat;
	cv::cvtColor（hairMat hairYuvMat CV_BGRA2YUV_I420）;
	for （int i = 0; i	{
		hairYuvMat.data[posu + i] = u;
		hairYuvMat.data[posv + i] = v;
	}

	cv::cvtColor（hairYuvMat hairMat CV_YUV2BGRA_I420）;

	//还原原图的透明度效果
	for （int i = 0; i	{
		for （int j = 0; j		{
			const cv::Vec4b& cc = hairBak.at（i j）;
			cv::Vec4b& c = hairMat.at（i j）;
			c[3] = cc[3];
		}
	}
	
	IplImage ipl（hairMat）;
	cvSaveImage（“colorHair.png“ &ipl）;
	return 0;
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-01-30 15:19  ChangeHairColor\
     目录           0  2018-01-30 13:45  ChangeHairColor\.vs\
     目录           0  2018-01-30 13:45  ChangeHairColor\.vs\ChangeHairColor\
     目录           0  2018-01-30 13:45  ChangeHairColor\.vs\ChangeHairColor\v14\
     文件       69120  2018-01-30 15:19  ChangeHairColor\.vs\ChangeHairColor\v14\.suo
     目录           0  2018-01-30 15:17  ChangeHairColor\ChangeHairColor\
     文件        7715  2018-01-30 14:04  ChangeHairColor\ChangeHairColor\ChangeHairColor.vcxproj
     文件         945  2018-01-30 14:04  ChangeHairColor\ChangeHairColor\ChangeHairColor.vcxproj.filters
     文件         567  2018-01-30 15:17  ChangeHairColor\ChangeHairColor\ChangeHairColor.vcxproj.user
     文件      467857  2018-01-30 15:17  ChangeHairColor\ChangeHairColor\colorHair.png
     目录           0  2018-01-30 15:18  ChangeHairColor\ChangeHairColor\Debug\
     文件         967  2018-01-30 15:18  ChangeHairColor\ChangeHairColor\Debug\ChangeHairColor.Build.CppClean.log
     文件           3  2018-01-30 15:18  ChangeHairColor\ChangeHairColor\Debug\ChangeHairColor.log
     目录           0  2018-01-30 15:18  ChangeHairColor\ChangeHairColor\Debug\ChangeHairColor.tlog\
     文件        1714  2018-01-30 15:09  ChangeHairColor\ChangeHairColor\main.cpp
     文件    15794176  2018-01-30 15:19  ChangeHairColor\ChangeHairColor.sdf
     文件        1327  2018-01-30 13:45  ChangeHairColor\ChangeHairColor.sln
     文件      432618  2018-01-30 14:29  ChangeHairColor\colorHair.png
     目录           0  2018-01-30 15:18  ChangeHairColor\Debug\
     文件       56832  2018-01-30 15:09  ChangeHairColor\Debug\ChangeHairColor.exe
     文件      413937  2018-01-30 15:18  ChangeHairColor\Debug\colorHair.png
     文件    40396288  2017-02-04 12:35  ChangeHairColor\Debug\opencv_world300d.dll
     文件      494528  2018-01-30 14:14  ChangeHairColor\exampleHair.png
     文件     1784400  2017-02-04 12:34  ChangeHairColor\opencv_world300d.lib