dibapi.h

用Visual c++实现数字图像迭代混沌加密

//dibapi.h
#ifndef _INC_DIBAPI
#define _INC_DIBAPI

//DIB句柄
DECLARE_HANDLE(HDIB);

//DIB常量
#define PALVERSION 0x300

/*DIB宏*/

//判断是否是Win 3.0 的DIB
#define IS_WIN30_DIB(lpbi) ((*(LPDWORD)(lpbi))==sizeof(BITMAPINFOHEADER))

//计算矩形区域的宽度
#define RECTWIDTH(lpRect) ((lpRect)->right - (lpRect)->left)

//计算矩形区域的宽度
#define RECTHEIGHT(lpRect) ((lpRect)->bottom - (lpRect)->top)

//在计算图象大小时，采用的公式：biSizeImage = biWidth' * biHeight.
//是biWidth`,而不是biWidth,这里的biWidth`必须是4的整倍数，表示
//大于或等于biWidth的，离4最近的整倍数。WIDTHBYTES就是用来计算
//biWidth`的。
#define WIDTHBYTES(bits) ((bits+31)/32*4)

//函数原形
BOOL WINAPI PaintDIB(HDC,LPRECT,HDIB,LPRECT,CPalette* pPal);
BOOL WINAPI CreateDIBPalette(HDIB hDIB,CPalette* pPal);
LPSTR WINAPI FindDIBBits(LPSTR lpbi);
DWORD WINAPI DIBWidth(LPSTR lpDIB);
DWORD WINAPI DIBHeight(LPSTR lpDIB);
WORD WINAPI PaletteSize(LPSTR lpbi);
WORD WINAPI DIBNumColors(LPSTR lpbi);
HGLOBAL WINAPI CopyHandle(HGLOBAL h);
BOOL WINAPI SaveDIB(HDIB hDib,CFile& file);
HDIB WINAPI ReadDIBFile(CFile& file);
BOOL WINAPI LinerTrans(LPSTR lpDIBBits,LONG lWidth,LONG lHeight, FLOAT fA,FLOAT fB);
BOOL WINAPI ThresholdTrans(LPSTR lpDIBBits,LONG lWidth,LONG lHeight,BYTE bThre);
BOOL WINAPI WindowTrans(LPSTR lpDIBBits,LONG lWidth,LONG lHeight,BYTE blow,BYTE bUp);
BOOL WINAPI GrayStretch(LPSTR lpDIBBits,LONG lWidth,LONG lHeight,BYTE bX1,BYTE bY1,BYTE bX2,BYTE bY2);
BOOL WINAPI InteEqualize(LPSTR lpDIBBits,LONG lWidth,LONG lHeight);
BOOL WINAPI ChaosEncode(LPSTR lpDIBBits,LONG lWidth,LONG lHeight,double Xstrart,double a);
DWORD WINAPI LogisticCode(double Xstart,double a);
double WINAPI Logistic(double Xstart,double a);
#endif//!_INC_DIBAPI