图像镜像

三个函数，垂直镜像、水平镜像、自定义镜像。

[cpp]
void CDIGTLSView::OnMirrorVertical()    //垂直镜像
//程序编制：李立宗 lilizong@gmail.com
// 2012-8-6
    {
        if(myImage1.IsNull())
            OnOpenResourceFile();
        if(myImage2.IsNull()){
            //myImage2.Destroy();
            myImage2.Create(myImage1.GetWidth(),myImage1.GetHeight(),24,0);
        }
        COLORREF pixel;
        int maxY = myImage1.GetHeight();
        int maxX=myImage1.GetWidth();
        int r,g,b,avg;
        double c;
        byte* pRealData;
        byte* pRealData2;
        pRealData=(byte*)myImage1.GetBits();
        pRealData2=(byte*)myImage2.GetBits();
        int pit=myImage1.GetPitch();
        int pit2=myImage2.GetPitch();
        //需要注意,pit和pit2的值并不一样,所以如果使用一个值,会导致不同的结果出现
        //CString str;
        //str.Format(TEXT("%d"),pit2);
        //MessageBox(str);
        //str.Format(TEXT("%d"),pit2);
        //MessageBox(str);
        int bitCount=myImage1.GetBPP()/8;
        int bitCount2=myImage2.GetBPP()/8;
        //CString str;
        //str.Format(TEXT("%d"),bitCount);
        //MessageBox(str);
        //str.Format(TEXT("%d"),bitCount2);
        //MessageBox(str);
        int newValue;
        int tempR,tempG,tempB;
        int key1,key2; //用来控制方向
        //srand((unsigned)time(NULL));
        //key1=rand()%100;
        //key2=rand()%100;
        //if(key1>50)
        // key1=-1;
        //else
        // key1=1;
        //if(key2<50)
        // key2=1;
        //else
        // key2=-1;
        //int xTrans=key1*rand()%(int)(maxX/1.5)+1;
        //int yTrans=key2*rand()%(int)(maxY/1.5)+1;
        //说明：将生产的图像作为24位图处理。
        for (int y=0; y<maxY; y++) {
            for (int x=0; x<maxX; x++) {
                if((maxY-1-y>=0)&&(maxY-1-y<=maxY))
                {   tempR=(int)(int)(*(pRealData+pit*(maxY-1-y)+x*bitCount));
                if(bitCount==1)
                {tempG=tempR;
                tempB=tempR;}
                else
                {

                    tempG=(int)(int)(*(pRealData+pit*(maxY-1-y)+x*bitCount+1));
                    tempB=(int)(int)(*(pRealData+pit*(maxY-1-y)+x*bitCount+2));
                }
                }
                else
                {
                    tempR=255;
                    tempG=0;
                    tempB=0;
                }

                *(pRealData2+pit2*y+x*bitCount2)=tempR;
                *(pRealData2+pit2*y+x*bitCount2+1)=tempG;
                *(pRealData2+pit2*y+x*bitCount2+2)=tempB;
            }

        }
        Invalidate();
    }

    void CDIGTLSView::OnMirrorHorizental()    //水平镜像
    {
        if(myImage1.IsNull())
            OnOpenResourceFile();
        if(myImage2.IsNull()){
            //myImage2.Destroy();
            myImage2.Create(myImage1.GetWidth(),myImage1.GetHeight(),24,0);
        }

补充：软件开发 , C++ ,