//?CompareImg1.cpp?:?定義控制臺應用程序的入口點。
//

/*2012-3-7?功能：比較兩幅圖的紋理特征，從而判斷兩幅圖像的相似度*/

#include?“stdafx.h“
#include?“cv.h“
#include?“highgui.h“
#include?“cxcore.h“

int?GetTexturePara（CvMat*?paraMatri[4]double?*texturePara）;//
double?GetVar（double?ar[4]）;//求紋理參數的方差
double?GetMean（double?ar[4]）;//求紋理參數的均值
int?GetGLCM（CvMat?*?ImgMatdouble*?texturePara）;//由共生矩陣提取各個紋理參數，
//并通過GetTexturePara函數調用GetVar和GetMean函數計算各個參數的均值和方差
double?comparePara（double*?textureArray1double*?textureArray2）;//比較兩個圖像矩陣的紋理參數，返回代表相似度的值
double?ComputeTextureDiff（IplImage?*pImg1IplImage?*pImg2）;//比較兩幅圖像的相似度，首先調用GetGLCM函數，然后調用函數comparePara

int?main（）
{

	IplImage?*pImg1?=?cvLoadImage（“testhigh2.jpg“-1）;//加載兩幅圖像
	IplImage?*pImg2?=?cvLoadImage（“testout3.jpg“-1）;

	if?（!pImg1?&&?!pImg2?）
	{
		return?-1;
	}


	double?dDiff?=?0.0;?//兩幅圖的差別
	dDiff?=?ComputeTextureDiff（pImg1pImg2）;
???printf（“%f“dDiff）;

	return?0;
}


double?comparePara（double*?textureArray1double*?textureArray2）
{

	double?paraDis[16];
	double?sumPara=0;
	double?tempmax=?0;
	for（int?i=0;i<16;i++）
	{
		tempmax=textureArray1[i]?>?textureArray2[i]???textureArray1[i]?:?textureArray2[i];
		if?（tempmax==0）
		{
			tempmax?=?1;
		}
		paraDis[i]=?（textureArray1[i]-textureArray2[i]）*（textureArray1[i]-textureArray2[i]）/（tempmax*tempmax）;

		sumPara?+=?paraDis[i];

	}
	sumPara?=1-?sqrt（sumPara）/16;//相似度?值越大相似度越大

	return?sumPara;
}
double?GetMean（double?ar[4]）//計算均值，GetGLCM函數中會用到
{
	double?sumValue=0;
	for?（int?i=0;i<4;i++）
	{
		sumValue?+=?ar[i];
	}
	return?（sumValue/4.0）;
}
double?GetVar（double?ar[4]）//計算方均值，GetGLCM函數中會用到
{
	double?sumValue=0;
	for?（int?i=0;i<4;i++）
	{
		sumValue?+=?ar[i]*ar[i];
	}
	return?（sumValue/4.0）;
}
int?GetTexturePara（CvMat*?paraMatri[4]double?*texturePara）
{
	double?tempArray[4]={0};
	/*static?double?texturePara[16]={0};*/
	int?textureNum=0;
	for（int?paraNum=0;paraNum<8;paraNum++）
	{

		for?（int?i=0;i<4;i++）
		{
			tempArray[i]?=?cvGetReal1D（paraMatri[i]paraNum）;???//矩陣每一列都表示相同紋理參數，只是在不同的角度下而已

		}
		*（texturePara+textureNum）=?GetMean（tempArray）;
		*（texturePara+textureNum）=GetVar（tempArray）?-?（*（texturePara+textureNum））*?（*（texturePara+textureNum））;
		textureNum++;

	}
	return?0;
}

int?GetGLCM（CvMat?*?ImgMatdouble*?texturePara）//生成共生矩陣并求出相關的紋理參數
{
	int?ijmndim;
	double??minvalue?=?0.0maxvalue?=?0.0;
	int?imgWidthimgHeight;
	imgWidth?=?ImgMat->width;
	imgHeight?=?ImgMat->height;
	CvMat*?ImgMatUchar?=?cvCreateMat（imgHeightimgWidthCV_8UC1）;//圖像灰度值范圍0-255
	cvMinMaxLoc（ImgMat&minvalue&maxvalue）;//尋找最大值最小值

	//--------------------以下兩行代碼實現圖像歸一化，將像素值歸一化到0-255
	cvConvertScale（ImgMatImgMat1-minvalue）;//線性變換轉換數組
	cvConvertScale（ImgMatImgMat255/（maxvalue-minvalue）0）;
	cvConvert（ImgMatImgMatUchar）;

	//--------------------為了提高計算速度，必須對圖像進行量化------------
	for（j=0;j		for（i=0;i			for?（n=0;n<16;n++）//像素分級
			{
				uchar?temp?=?CV_MAT_ELEM（*ImgMat

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2012-03-08?08:35??CompareImg1\
?????目錄???????????0??2012-03-08?08:47??CompareImg1\CompareImg1\
?????文件????16034816??2012-03-08?08:48??CompareImg1\CompareImg1.ncb
?????文件?????????899??2012-03-07?16:39??CompareImg1\CompareImg1.sln
?????文件???????13312??2012-03-08?08:48??CompareImg1\CompareImg1.suo
?????文件???????12686??2012-03-08?08:47??CompareImg1\CompareImg1\CompareImg1.cpp
?????文件????????4582??2012-03-07?16:41??CompareImg1\CompareImg1\CompareImg1.vcproj
?????文件????????1407??2012-03-08?08:48??CompareImg1\CompareImg1\CompareImg1.vcproj.RMTYL.Administrator.user
?????目錄???????????0??2012-03-08?08:40??CompareImg1\CompareImg1\Debug\
?????文件????????7040??2012-03-08?08:40??CompareImg1\CompareImg1\Debug\BuildLog.htm
?????文件?????????663??2012-03-08?08:32??CompareImg1\CompareImg1\Debug\CompareImg1.exe.embed.manifest
?????文件?????????728??2012-03-08?08:32??CompareImg1\CompareImg1\Debug\CompareImg1.exe.embed.manifest.res
?????文件?????????621??2012-03-08?08:40??CompareImg1\CompareImg1\Debug\CompareImg1.exe.intermediate.manifest
?????文件???????96201??2012-03-08?08:40??CompareImg1\CompareImg1\Debug\CompareImg1.obj
?????文件?????3211264??2012-03-08?08:32??CompareImg1\CompareImg1\Debug\CompareImg1.pch
?????文件??????????65??2012-03-08?08:40??CompareImg1\CompareImg1\Debug\mt.dep
?????文件???????12025??2012-03-08?08:32??CompareImg1\CompareImg1\Debug\stdafx.obj
?????文件??????642048??2012-03-08?08:40??CompareImg1\CompareImg1\Debug\vc90.idb
?????文件??????602112??2012-03-08?08:40??CompareImg1\CompareImg1\Debug\vc90.pdb
?????文件????????1207??2012-03-07?16:39??CompareImg1\CompareImg1\ReadMe.txt
?????文件?????????216??2012-03-07?16:39??CompareImg1\CompareImg1\stdafx.cpp
?????文件?????????233??2012-03-07?16:39??CompareImg1\CompareImg1\stdafx.h
?????文件?????????498??2012-03-07?16:39??CompareImg1\CompareImg1\targetver.h
?????文件???????12772??2012-03-07?15:15??CompareImg1\CompareImg1\testhigh2.jpg
?????文件????????7678??2012-03-07?15:15??CompareImg1\CompareImg1\testlow2.jpg
?????文件????????6539??2012-03-07?15:16??CompareImg1\CompareImg1\testout3.jpg
?????目錄???????????0??2012-03-08?08:34??CompareImg1\Debug\
?????文件???????40448??2012-03-08?08:40??CompareImg1\Debug\CompareImg1.exe
?????文件??????401000??2012-03-08?08:40??CompareImg1\Debug\CompareImg1.ilk
?????文件?????1018880??2012-03-08?08:40??CompareImg1\Debug\CompareImg1.pdb