你好 请参考下面代码
#include
#define MODEGRAYBAR 0
#define MODEGRAY 1
#define MODEPHOTO1 2
#define MODEPHOTO2 3
#define MODEPHOTO3 4
#define MODEPHOTO4 5
#define MODEBLOCK 6
#define MODEINCLINE 7
#define MODEFPHOTO 8
#define GRAYBARLEVEL 16
void ReadImage(unsigned char *pImage,char *cFileName,int nWidth,int nHeight);
void InitImage(unsigned int nMode,unsigned char *pImage,int nWidth,int nHeight)
[
int x,y,nWork,nWork1;
unsigned char *pWork;
int nPointx=nWidth/2;
int nPointy=nHeight/2;
switch ( nMode )
[
case MODEGRAYBAR:
pWork=pImage; nWork=256/GRAYBARLEVEL; nWork1=nHeight/GRAYBARLEVEL;
for ( y=0;y
[
for ( x=0;x
[
(*pWork)=(y/nWork1)*nWork;
]
]
break;
case MODEGRAY:
pWork=pImage;
nWork1=nHeight-nPointy; nWork=nWork1*nWork1;
nWork1=nWidth-nPointx; nWork+=(nWork1*nWork1);
nWork/=256;
for ( y=0;y
[
for ( x=0;x
[
nWork1=(x-nPointx)*(x-nPointx)+(y-nPointy)*(y-nPointy);
nWork1=255-nWork1/nWork;
if ( nWork1<0 ) nWork1=0;
else if ( nWork1>255 ) nWork1=255;
(*pWork)=nWork1;
]
]
break;
case MODEPHOTO1:
ReadImage(pImage,"..\Sunplus1.bmp",nWidth,nHeight);
break;
case MODEPHOTO2:
ReadImage(pImage,"..\Sunplus2.bmp",nWidth,nHeight);
break;
case MODEPHOTO3:
ReadImage(pImage,"..\Sunplus3.bmp",nWidth,nHeight);
break;
case MODEPHOTO4:
ReadImage(pImage,"..\Sunplus4.bmp",nWidth,nHeight);
break;
default:
break;
]
]
void ReadImage(unsigned char *pImage,char *cFileName,int nWidth,int nHeight)
[
int j;
unsigned char *pWork;
FILE *fp;
if ( fp=fopen(cFileName,"rb" ) )
[
fseek(fp,1078L,SEEK_SET);
pWork=pImage+(nHeight-1)*nWidth;
for ( j=0;j
fread(pWork,nWidth,1,fp);
fclose(fp);
]
]
你好 请参考下面代码
#include
#define MODEGRAYBAR 0
#define MODEGRAY 1
#define MODEPHOTO1 2
#define MODEPHOTO2 3
#define MODEPHOTO3 4
#define MODEPHOTO4 5
#define MODEBLOCK 6
#define MODEINCLINE 7
#define MODEFPHOTO 8
#define GRAYBARLEVEL 16
void ReadImage(unsigned char *pImage,char *cFileName,int nWidth,int nHeight);
void InitImage(unsigned int nMode,unsigned char *pImage,int nWidth,int nHeight)
[
int x,y,nWork,nWork1;
unsigned char *pWork;
int nPointx=nWidth/2;
int nPointy=nHeight/2;
switch ( nMode )
[
case MODEGRAYBAR:
pWork=pImage; nWork=256/GRAYBARLEVEL; nWork1=nHeight/GRAYBARLEVEL;
for ( y=0;y
[
for ( x=0;x
[
(*pWork)=(y/nWork1)*nWork;
]
]
break;
case MODEGRAY:
pWork=pImage;
nWork1=nHeight-nPointy; nWork=nWork1*nWork1;
nWork1=nWidth-nPointx; nWork+=(nWork1*nWork1);
nWork/=256;
for ( y=0;y
[
for ( x=0;x
[
nWork1=(x-nPointx)*(x-nPointx)+(y-nPointy)*(y-nPointy);
nWork1=255-nWork1/nWork;
if ( nWork1<0 ) nWork1=0;
else if ( nWork1>255 ) nWork1=255;
(*pWork)=nWork1;
]
]
break;
case MODEPHOTO1:
ReadImage(pImage,"..\Sunplus1.bmp",nWidth,nHeight);
break;
case MODEPHOTO2:
ReadImage(pImage,"..\Sunplus2.bmp",nWidth,nHeight);
break;
case MODEPHOTO3:
ReadImage(pImage,"..\Sunplus3.bmp",nWidth,nHeight);
break;
case MODEPHOTO4:
ReadImage(pImage,"..\Sunplus4.bmp",nWidth,nHeight);
break;
default:
break;
]
]
void ReadImage(unsigned char *pImage,char *cFileName,int nWidth,int nHeight)
[
int j;
unsigned char *pWork;
FILE *fp;
if ( fp=fopen(cFileName,"rb" ) )
[
fseek(fp,1078L,SEEK_SET);
pWork=pImage+(nHeight-1)*nWidth;
for ( j=0;j
fread(pWork,nWidth,1,fp);
fclose(fp);
]
]
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