16x16分块

// RotateZoom.cpp : Defines the entry point for the console application.//#include "stdafx.h"#include "RotateZoom.h"#ifdef _DEBUG#define new DEBUG_NEW#endif#include 
     
      #include 
      
       // The one and only application objectCWinApp theApp;using namespace std;//双三次插值系数double fs(double w){            double a=-0.5;        double fs;        if (abs(w)<=1)            fs=(a+2)*pow(abs(w),3)-(a+3)*pow(abs(w),2)+1;        else if (abs(w)>1&&abs(w)<=2)            fs=a*pow(abs(w),3)-5*a*pow(abs(w),2)+8*a*abs(w)-4*a;        else            fs=0;        return fs;}HRESULT RotateZoom(PBYTE pbSrc,int iWidth,int iHeight,double dbRotate,double dbZoom,PBYTE pbTag);int _tmain(int argc, TCHAR* argv[], TCHAR* envp[]){    int nRetCode = 0;    setlocale(LC_ALL,"chs");    HMODULE hModule = ::GetModuleHandle(NULL);    if (hModule != NULL)    {        // initialize MFC and print and error on failure        CImage cImage;        HRESULT hResult;        int        iWidth,iHeight,iBytePerPixel,iPitch;        int        i,j,x,y,w,h;        PBYTE    pbSrc=NULL,pbTag=NULL;        PBYTE    pbImage=NULL;        PDWORD    pdwImage=NULL;        double    dbRotate=0,dbZoom=0;        double    dbRotateStart=0,dbRotateEnd=0,dbRotateStep;        double    dbZoomStart=0,dbZoomEnd=0,dbZoomStep;        BOOL    bBenchWork=FALSE;        CString csSrcName,csTagName,csNameRoot;        TCHAR    *ptChar;        do{            if (!AfxWinInit(hModule, NULL, ::GetCommandLine(), 0))            {                // TODO: change error code to suit your needs                _tprintf(_T("Fatal Error: MFC initialization failed\n"));                nRetCode = 1;                break;            }            // TODO: code your application's behavior here.            if(argc!=6 && argc!=10 )            {                _tprintf(_T("使用方法：\n  RotateZoom -S 源图像文件 旋转角度 缩放倍数 输出文件\n或：\n  RotateZoom -B 源图像文件 旋转起始角度 步长 旋转终止角度 缩放起始倍数 步长 缩放终止倍数 输出文件\n"));                nRetCode= -1;                break;            }            if(_tcsnicmp(argv[1],_T("-B"),2)==0)            {                bBenchWork=TRUE;            }            else if(_tcsnicmp(argv[1],_T("-S"),2)==0)            {                bBenchWork=FALSE;            }            else            {                _tprintf(_T("使用方法：\n  RotateZoom -S 源图像文件 旋转角度 缩放倍数 输出文件\n或：\nRotateZoom -B 源图像文件 旋转起始角度 步长 旋转终止角度 缩放起始倍数 步长 缩放终止倍数 输出文件\n"));                nRetCode= -1;                break;            }            if(bBenchWork)            {                csSrcName=argv[2];                _stscanf(argv[3],_T("%lf"),&dbRotateStart);                _stscanf(argv[4],_T("%lf"),&dbRotateStep);                _stscanf(argv[5],_T("%lf"),&dbRotateEnd);                _stscanf(argv[6],_T("%lf"),&dbZoomStart);                _stscanf(argv[7],_T("%lf"),&dbZoomStep);                _stscanf(argv[8],_T("%lf"),&dbZoomEnd);                dbZoom=dbZoomStart>dbZoomEnd?dbZoomStart:dbZoomEnd;                csTagName=argv[9];                if(!((dbRotateStart>=0 && dbRotateStart<360) &&                      (dbRotateEnd>=0 && dbRotateEnd<360)     &&                     (dbZoomStart>=0.26 && dbZoomStart<=16)  &&                      (dbZoomStart>=0.25 && dbZoomStart<=16)  &&                     (dbRotateStep>=0.01) && (dbZoomEnd>=0.01)))                {                    _tprintf(_T("旋转角度范围（0~360），缩放倍数范围（0.25~16），步长范围（>=0.01）。输入参数超出范围！\n"));                    nRetCode= -2;                    break;                }                }            else            {                csSrcName=argv[2];                _stscanf(argv[3],_T("%lf"),&dbRotate);                _stscanf(argv[4],_T("%lf"),&dbZoom);                csTagName=argv[5];                if(!((dbRotate>=0 && dbRotate<360) && (dbZoom>=0.25 && dbZoom<=16)))                {                    _tprintf(_T("旋转角度范围（0~360），缩放倍数范围（0.25~16）。输入参数超出范围！\n"));                    nRetCode= -2;                    break;                }                        }            hResult=cImage.Load(csSrcName);            if(hResult!=ERROR_SUCCESS)            {                _tprintf(_T("源图像文件名错误！\n"));                nRetCode= -3;                break;            }            iWidth=cImage.GetWidth();            iHeight=cImage.GetHeight();            pbSrc = (PBYTE)malloc(iWidth*iHeight);//存原图数据大小没问题            if(dbZoom>1) pbTag = (PBYTE)malloc(ceil(iWidth*dbZoom)*ceil(iHeight*dbZoom));            else         pbTag = (PBYTE)malloc(iWidth*iHeight);            if(pbSrc==NULL || pbTag==NULL )            {                _tprintf(_T("内存申请错误！\n"));                nRetCode= -4;                break;            }            iPitch=cImage.GetPitch();            iBytePerPixel=(cImage.GetBPP()+7)/8;            if(iBytePerPixel==3)            {                for(y=0;y
       
        1)    {        size=iWidth*iHeight;    }    else    {        size=ceil(iWidth*dbZoom)*ceil(iHeight*dbZoom);    }    int newWidth=ceil(dbZoom*iWidth);    //旋转中心为图像中心    double rx0=ceil(dbZoom*iWidth)*0.5;      double ry0=ceil(dbZoom*iHeight)*0.5;     double srcx,srcy,u,v;    int xOr,yOr;    dbRotate=dbRotate*3.1415926/180.0;    int xo=0,yo=0;    for (int y=yo;y
        
         =0+16*(i-1) && xOr<=16*i && yOr-1>=0+16*(i-1) && yOr<=16*i))                                {                    pbTag[y*newWidth+x]=255-20*i;                }                }                    }    }    //memcpy(pbTag,pbSrc,size);    return ERROR_SUCCESS;}