dibapi.cpp
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CPP
1,472 行
int i;
int j;
LONG lLineBytes;
LONG fTemp;
LONG fBiex=20;
lLineBytes=WIDTHBYTES(lWidth*8);
for(i=0;i<lHeight-1;i++)
{
for(j=0;j<lWidth-1;j++)
{
lpSrc1=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i+1))+j;
lpSrc2=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+j+1;
lpSrc=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+j;
fTemp=(LONG)sqrt((*lpSrc-*lpSrc1)*(*lpSrc-*lpSrc1)+(*lpSrc-*lpSrc2)*(*lpSrc-*lpSrc2));
if(fTemp>255)
{
*lpSrc=255;
}
else if(fTemp<0)
{
*lpSrc=0;
}
else
{
*lpSrc=(unsigned char)(fTemp+0.5);
}
}
}
return TRUE;
}
BOOL WINAPI Move(LPSTR lpDIBBits,LONG lWidth,LONG lHeight,LONG DX,LONG DY)
{
int i; //行循环变量
int j; //列循环变量
LPSTR lpSrcDIBBits; //指向源像素的指针
LPSTR lpDstDIBBits; //指向临时图象对应像素的指针
LPSTR lpDstStartBits; //指向临时图象对应像素的指针
HLOCAL hDstDIBBits; //临时图象句柄
LONG lLineBytes;
lLineBytes=WIDTHBYTES(lWidth*8);
hDstDIBBits= LocalAlloc(LHND, lWidth * lLineBytes);// 分配临时内存
lpDstStartBits= (char * )LocalLock(hDstDIBBits);// 锁定内存
if (hDstDIBBits== NULL)// 判断是否内存分配
return FALSE;// 分配内存失败
for(i = 0; i < lHeight; i++)// 行
{
for(j = 0; j < lWidth; j++) // 列
{
lpDstDIBBits=(char*)lpDstStartBits+lLineBytes*(lHeight-1-i)
+j;// 指向新DIB第i行，第j个像素的指针
if( (j-DY>= 0) && (j-DY< lWidth) && // 像素在源DIB中的坐标j-DX
(i-DX>= 0) && (i-DX < lHeight))// 判断是否在源图范围内
{
lpSrcDIBBits=(char *)lpDIBBits+lLineBytes*(lHeight-1-
(i-DX))+(j-DY);// 指向源DIB第i0行，第j0个像素的指针
*lpDstDIBBits= *lpSrcDIBBits;// 复制像素
}
else
{
* ((unsigned char*)lpDstDIBBits) = 0;// 源图中没有的像素，赋为255
}
}
}
memcpy(lpDIBBits, lpDstStartBits, lLineBytes * lHeight);// 复制图象
LocalUnlock(hDstDIBBits);// 释放内存
LocalFree(hDstDIBBits);
return TRUE;
}
BOOL WINAPI Horizontal(LPSTR lpDIBBits,LONG lWidth,LONG lHeight)
{
/*
int i; //行循环变量
int j; //列循环变量
LPSTR lpSrcDIBBits; //指向源像素的指针
LPSTR lpDstDIBBits; //指向临时图象对应像素的指针
LPSTR lpDstStartBits; //指向临时图象对应像素的指针
HLOCAL hDstDIBBits; //临时图象句柄
LONG lLineBytes;
lLineBytes=WIDTHBYTES(lWidth*8);
hDstDIBBits= LocalAlloc(LHND, lWidth * lLineBytes);// 分配临时内存
lpDstStartBits= (char * )LocalLock(hDstDIBBits);// 锁定内存
if (hDstDIBBits== NULL)// 判断是否内存分配
return FALSE;// 分配内存失败
for(i = 0; i < lHeight; i++)// 行
{
for(j = 0; j < lWidth; j++) // 列
{
lpDstDIBBits=(char*)lpDstStartBits+lLineBytes*(lHeight-1-i)+j;// 指向新DIB第i行，第j个像素的指针
lpSrcDIBBits=(char *)lpDIBBits+lLineBytes*(lHeight-i)-j;// 指向源DIB第i0行，第j0个像素的指针
*lpDstDIBBits= *lpSrcDIBBits;// 复制像素
}
}
memcpy(lpDIBBits, lpDstStartBits, lLineBytes * lHeight);// 复制图象
LocalUnlock(hDstDIBBits);// 释放内存
LocalFree(hDstDIBBits);
return TRUE;*/
//水平镜像
unsigned char *lpSrc;
unsigned char *lpDst;
LONG i;
LONG j;
LONG lLineBytes;
unsigned char fTemp;
lLineBytes=WIDTHBYTES(lWidth*8);
for(i=0;i<lHeight;i++)
{
for(j=0;j<lWidth/2;j++)
{
lpSrc=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+j;
lpDst=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+lLineBytes-j;
fTemp=*lpDst;
*lpDst=*lpSrc;
*lpSrc=fTemp;
}
}
return TRUE;
}
BOOL WINAPI Vertical(LPSTR lpDIBBits,LONG lWidth,LONG lHeight)
{
/* //有一点问题待解决!!!
int i; //行循环变量
int j; //列循环变量
LPSTR lpSrcDIBBits; //指向源像素的指针
LPSTR lpDstDIBBits; //指向临时图象对应像素的指针
LPSTR lpDstStartBits; //指向临时图象对应像素的指针
HLOCAL hDstDIBBits; //临时图象句柄
LONG lColBytes;
lColBytes=WIDTHBYTES(lHeight*8);
//hDstDIBBits= LocalAlloc(LHND, lHeight * lColBytes);// 分配临时内存
hDstDIBBits= LocalAlloc(LHND, lColBytes*lWidth);// 分配临时内存
lpDstStartBits= (char * )LocalLock(hDstDIBBits);// 锁定内存
if (hDstDIBBits== NULL)// 判断是否内存分配
return FALSE;// 分配内存失败
//for(j = 1; j < lWidth+1; j++)// 行
for(j = 1; j < lWidth+1; j++)
{
for(i = 1; i <(lHeight+1); i++) // 列
// for(j = 0; j < lWidth; j++) // 列
{
lpDstDIBBits=(char*)lpDstStartBits+lColBytes*(j-1)+i;// 指向新DIB第i行，第j个像素的指针
lpSrcDIBBits=(char *)lpDIBBits+lColBytes*(lWidth-j-1)-i;// 指向源DIB第i0行，第j0个像素的指针
*lpDstDIBBits= *lpSrcDIBBits;// 复制像素
}
}
// memcpy(lpDIBBits, lpDstStartBits, lColBytes * lWidth);// 复制图象
memcpy(lpDIBBits, lpDstStartBits, lWidth*lColBytes );// 复制图象
LocalUnlock(hDstDIBBits);// 释放内存
LocalFree(hDstDIBBits);
return TRUE;
*/
unsigned char*lpSrc,*flpSrc;
LONG i;
LONG j;
LONG lLineBytes;
unsigned char fTemp;
lLineBytes=WIDTHBYTES(lWidth*8);
for(i=0;i<lHeight/2;i++)
{
for(j=0;j<lWidth;j++)
{
lpSrc=(unsigned char*)lpDIBBits+lLineBytes*i+j;
flpSrc=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-i)+j;
fTemp=*flpSrc;
*flpSrc=*lpSrc;
*lpSrc=fTemp;
}
}
return TRUE;
}
BOOL WINAPI Circumrotate(LPSTR lpDIBBits,LONG lWidth,LONG lHeight)
{
int i; //行循环变量
int j; //列循环变量
LPSTR lpSrcDIBBits; //指向源像素的指针
LPSTR lpDstDIBBits; //指向临时图象对应像素的指针
LPSTR lpDstStartBits; //指向临时图象对应像素的指针
HLOCAL hDstDIBBits; //临时图象句柄
LONG lColBytes;
lColBytes=WIDTHBYTES(lHeight*8);
hDstDIBBits= LocalAlloc(LHND, lWidth * lColBytes);// 分配临时内存
lpDstStartBits= (char * )LocalLock(hDstDIBBits);// 锁定内存
if (hDstDIBBits== NULL)// 判断是否内存分配
return FALSE;// 分配内存失败
for(j = 0; j < lHeight; j++)// 行
{
for(i = 0; i < lWidth; i++) // 列
{
lpDstDIBBits=(char*)lpDstStartBits+lColBytes*(lWidth-1-i)+j;// 指向新DIB第i行，第j个像素的指针
lpSrcDIBBits=(char *)lpDIBBits+lColBytes*(lWidth-
j)-i;// 指向源DIB第i0行，第j0个像素的指针
*lpDstDIBBits= *lpSrcDIBBits;// 复制像素
}
}
memcpy(lpDIBBits, lpDstStartBits, lColBytes * lWidth);// 复制图象
LocalUnlock(hDstDIBBits);// 释放内存
LocalFree(hDstDIBBits);
return TRUE;
}
BOOL WINAPI LinerTrans(LPSTR lpDIBBits,LONG lWidth,LONG lHeight,int X1,int Y1,int X2,int Y2)
{
unsigned char* lpSrc;
LONG i;
LONG j;
LONG lLineBytes;
LONG fTemp;
LONG fBiex;
lLineBytes=WIDTHBYTES(lWidth*8);
for(i=0;i<lHeight;i++)
{
for(j=0;j<lWidth;j++)
{
lpSrc=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+j;
fBiex=*lpSrc;
if(X1==0)
{
fTemp=Y1;
}
else if(X2==255)
{
fTemp=Y2;
}
else if(fBiex>0&&fBiex<X1)
{
fTemp=fBiex*Y1/X1;
}
else if(fBiex>=X1&&fBiex<=X2)
{
fTemp=fBiex*(Y2-Y1)/(X2-X1)+Y1;
}
else if(fBiex>X2&&fBiex<=255)
{
fTemp=(fBiex+Y2-X2)*(255-Y2)/(225-X2);
}
if(fTemp>255)
{
*lpSrc=255;
}
else if(fTemp<0)
{
*lpSrc=0;
}
else
{
*lpSrc=(unsigned char)(fTemp+0.5);
}
}
}
return TRUE;
}
HGLOBAL Zoom(LPSTR lpSrcDib, LPSTR lpSrcStartBits,long lWidth, long lHeight,
long lLineBytes, WORD palSize,long lDstWidth,long lDstLineBytes,long lDstHeight,
float fhorRatio,float fverRatio)
{
LPSTR lpDstDib; //指向临时图象的指针
long i; //行循环变量
long j; //列循环变量
long i1; //行循环变量
long j1; //列循环变量
LPSTR lpSrcDIBBits; //指向源像素的指针
LPSTR lpDstDIBBits; //指向临时图象对应像素的指针
LPSTR lpDstStartBits; //指向临时图象对应像素的指针
LPBITMAPINFOHEADER lpbmi;// 指向BITMAPINFO结构的指针
// 分配内存，以保存缩放后的DIB
HGLOBAL hDIB = (HGLOBAL) ::GlobalAlloc(GHND, lDstLineBytes* lDstHeight + *(LPDWORD)lpSrcDib +palSize);
if (hDIB == NULL)// 判断是否是有效的DIB对象
{
return FALSE;// 不是，则返回
}
lpDstDib= (char * )::GlobalLock((HGLOBAL) hDIB);// 锁定内存
memcpy(lpDstDib, lpSrcDib, *(LPDWORD)lpSrcDib +palSize);// 复制DIB信息头和调色板
lpDstStartBits=lpDstDib+ *(LPDWORD)lpDstDib// 找到新DIB像素起始位置
+palSize;// 求像素起始位置,作用如同::FindDIBBits(lpSrcDib)，这里尝试使用了这种方法，以避免对全局函数的调用
lpbmi = (LPBITMAPINFOHEADER)lpDstDib;// 获取指针
lpbmi->biWidth = lDstWidth;// 更新DIB中图象的高度和宽度
lpbmi->biHeight =lDstHeight;
for(i = 0; i < lDstHeight; i++)// 行操作
{
for(j = 0; j < lDstWidth; j++)// 列操作
{
// 指向新DIB第i行，第j个像素的指针
lpDstDIBBits= (char *)lpDstStartBits + lDstLineBytes * (lDstHeight-1-i)+j;
i1= (long) (i / fverRatio + 0.5);// 计算该像素在源DIB中的坐标
j1= (long) (j / fhorRatio + 0.5);
if( (j1>= 0) && (j1< lWidth) && (i1>= 0) && (i1< lHeight))
{// 判断是否在源图内
lpSrcDIBBits= (char *)lpSrcStartBits+ lLineBytes * (lHeight - 1 -i1) + j1;// 指向源DIB第i行，第j个像素的指针
*lpDstDIBBits= *lpSrcDIBBits;// 复制像素
}
else
{
* ((unsigned char*)lpDstDIBBits) = 255;// 源图中不存在的像素，赋为255
}
}
}
return hDIB;
}
BOOL WINAPI MidFilter(LPSTR lpDIBBits,LONG lWidth,LONG lHeight)
{
// unsigned char* lpSrc1,*lpSrc2,*lpSrc;
unsigned char* lpSrc1,*lpSrc2,*lpSrc3,*lpSrc4,*lpSrc5,*lpSrc6,*lpSrc7,*lpSrc8,*lpSrc;
int i;
int j;
LONG lLineBytes;
LONG fTemp;
LONG fBiex=20;
lLineBytes=WIDTHBYTES(lWidth*8);
for(i=0;i<lHeight-1;i++)
{
for(j=0;j<lWidth-1;j++)
{
lpSrc=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+j;
if((i>0) || ((i+1)<lHeight) || (j>0) || ((j+1)<lWidth))
{
lpSrc1=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i+1))+j;
lpSrc2=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i+1))+j+1;
lpSrc3=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i+1))+j-1;
lpSrc4=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+j+1;
lpSrc5=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+j-1;
lpSrc6=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i-1))+j+1;
lpSrc7=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i-1))+j;
lpSrc8=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i-1))+j-1;
//lpSrc=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+j;
fTemp=(LONG)middnum(lpSrc1,lpSrc2,lpSrc3,lpSrc4,lpSrc5,lpSrc6,lpSrc7,lpSrc8,lpSrc);
}else
fTemp=(LONG)lpSrc;
if(fTemp>255)
{
*lpSrc=255;
}
else if(fTemp<0)
{
*lpSrc=0;
}
else
{
*lpSrc=(unsigned char)(fTemp+0.5);
}
}
}
return TRUE;
}
unsigned char middnum(unsigned char* lpSrc1,unsigned char* lpSrc2,unsigned char* lpSrc3,unsigned char* lpSrc4,unsigned char* lpSrc5,unsigned char* lpSrc6,unsigned char* lpSrc7,unsigned char* lpSrc8,unsigned char* lpSrc)
{
unsigned char little,mid,biggest;
unsigned char lp[9];
lp[0]=*lpSrc;
lp[1]=*lpSrc1;
lp[2]=*lpSrc2;
lp[3]=*lpSrc3;
lp[4]=*lpSrc4;
lp[5]=*lpSrc5;
lp[6]=*lpSrc6;
lp[7]=*lpSrc7;
lp[8]=*lpSrc8;
int i,j;
for(i=0;i<9;i++)
for(j=0;j<9-i;j++)
{
if(lp[j]>lp[j+1])
{
little=lp[j+1];
lp[j+1]=lp[j];
lp[j]=little;
}
}
mid=lp[4];
biggest=lp[8];
if(abs((LONG)(mid)-(LONG)(biggest))<0.0005)
{
mid=*lpSrc;
}
return mid;
}
/*
BOOL WINAPI Sobel(LPSTR lpDIBBits,LONG lWidth,LONG lHeight)
{
int i;
int j;
unsigned char* lpSrc1,*lpSrc2,*lpSrc3,*lpSrc4,*lpSrc9,*lpSrc6,*lpSrc7,*lpSrc8,*lpSrc;
LONG lLineBytes;
LONG fTemp;
LONG fTempx;
LONG fTempy;
LONG fBiex=20;
lLineBytes=WIDTHBYTES(lWidth*8);
for(i=0;i<lHeight-1;i++)
{
for(j=0;j<lWidth-1;j++)
{
lpSrc=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+j;
if((i>0) || ((i+1)<lHeight) || (j>0) || ((j+1)<lWidth))
{
lpSrc8=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i+1))+j;
lpSrc9=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i+1))+j+1;
lpSrc7=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i+1))+j-1;
lpSrc6=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+j+1;
lpSrc4=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-i)+j-1;
lpSrc3=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i-1))+j+1;
lpSrc2=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i-1))+j;
lpSrc1=(unsigned char*)lpDIBBits+lLineBytes*(lHeight-1-(i-1))+j-1;
fTempx=abs(-(int)(*lpSrc1)+(int)(*lpSrc3)-2*(int)(*lpSrc4)+2*(int)(*lpSrc6)-(int)(*lpSrc7)+(int)(*lpSrc9));
fTempy=abs(-(int)(*lpSrc7)+(int)(*lpSrc1)-2*(int)(*lpSrc8)+2*(int)(*lpSrc2)-(int)(*lpSrc9)+(int)(*lpSrc3));
fTemp=fTempx+fTempy;
//fTemp=(abs((int)(*lpSrc3)+(int)(*lpSrc6)+(int)(*lpSrc6)+(int)(*lpSrc9)-(int)(*lpSrc1)-(int)(*lpSrc4)-(int)(*lpSrc4)-(int)(*lpSrc7))
// +abs((int)(*lpSrc1)+(int)(*lpSrc2)+(int)(*lpSrc2)+(int)(*lpSrc3)-(int)(*lpSrc7)-(int)(*lpSrc8)-(int)(*lpSrc8)-(int)(*lpSrc9)))/2;
//fTemp=sqrt(pow(abs((int)(*lpSrc3)+(int)(*lpSrc6)+(int)(*lpSrc6)+(int)(*lpSrc9)-(int)(*lpSrc1)-(int)(*lpSrc4)-(int)(*lpSrc4)-(int)(*lpSrc7)),2)
// +pow(abs((int)(*lpSrc1)+(int)(*lpSrc2)+(int)(*lpSrc2)+(int)(*lpSrc3)-(int)(*lpSrc7)-(int)(*lpSrc8)-(int)(*lpSrc8)-(int)(*lpSrc9)),2));
}else
fTemp=(LONG)lpSrc;
if(fTemp>255)
{
*lpSrc=255;
}
else if(fTemp<0)
{
*lpSrc=0;
}
else
{
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