?? wvlttransdib2.cpp
字號:
// WvltTrans.cpp: implementation of the CWvltTrans class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "windowsx.h"
#include "math.h"
#include "MainFrm.h"
#include "DynSplitView2.h"
//#include "wavelets.h"
//#include "DIP_System.h"
#include "WvltTransDib.h"
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CWvltTransDib::CWvltTransDib()
{
layer1=FALSE;
layer2=FALSE;
layer3=FALSE;
}
CWvltTransDib::~CWvltTransDib()
{
}
void CWvltTransDib::Hangbianhuan()
{
int i,j;
LONG width,height;
BYTE r, g, b;
LPBYTE temp1, temp2;
float tpBuffer;
short maxVal,minVal,difVal;
width=this->GetWidth();
height=this->GetHeight();
int nWidth=width/2;
LONG lLineBytes = (width*3+3)/4 *4;
//分配臨時(shí)數(shù)據(jù)空間
temp1 = new BYTE[height*width];
temp2 = new BYTE[height*width];
//從設(shè)備緩存中獲得原始圖像數(shù)據(jù)
for(j=0; j<(int)height; j++)
{
for( i=0; i<(int)width; i++)
{
b=m_pData[j*lLineBytes+3*i];
g=m_pData[j*lLineBytes+3*i+1];
r=m_pData[j*lLineBytes+3*i+2];
temp1[(height-1-j)*width+i]=(BYTE)(0.3*r+0.59*g+0.11*b);
}
}
for(j = 0; j < height; j ++)
{
for(i = 0; i < nWidth; i ++)
{
int w = i *2;
temp2[j*width+i] = temp1[j*width+w]; //偶
temp2[j*width+nWidth+i] = temp1[j*width+w+1]; //奇
}
}
//通過圖像的差分，完成小波變換
for(j=0; j<height; j++)
{
for(i=0; i<nWidth-1; i++)
{
temp2[j*width+nWidth+i] = temp2[j*width+nWidth+i] -temp2[j*width+i]+128;
}
}
maxVal=temp2[0*width+0];
minVal=temp2[0*width+0];
//得到圖像小波系數(shù)的極大值與極小值
for( j=0; j<(int)height; j++)
{
for( i=0; i<(int)width; i++)
{
if(maxVal<temp2[j*width+i])
maxVal=temp2[j*width+i];
if(minVal>temp2[j*width+i])
minVal=temp2[j*width+i];
}
}
//計(jì)算獲取圖像小波系數(shù)的極值差
difVal=maxVal-minVal;
//小波經(jīng)過處理后，放入顯示緩存中
for(j=0; j<(int)height; j++)
{
for(i=0; i<(int)width; i++)
{
//因?yàn)樾〔ㄗ儞Q后的小波系數(shù)有可能超過255甚至更多，那么就將
//小波系數(shù)的范圍映射到0~255區(qū)間內(nèi)，以后出現(xiàn)類似的處理，目的都是一樣的
tpBuffer=temp2[(height-1-j)*width+i];
tpBuffer-=minVal;
tpBuffer*=255;
tpBuffer/=difVal;
m_pData[j*lLineBytes+3*i] = (BYTE)tpBuffer;
m_pData[j*lLineBytes+3*i+1]= (BYTE)tpBuffer;
m_pData[j*lLineBytes+3*i+2]= (BYTE)tpBuffer;
}
}
//刪除臨時(shí)的數(shù)據(jù)空間
delete temp1;
delete temp2;
}
void CWvltTransDib::Liebianhuan()
{
int i,j;
LONG width,height;
BYTE r, g, b;
LPBYTE temp1, temp2;
float tpBuffer;
short maxVal,minVal,difVal;
width=this->GetWidth();
height=this->GetHeight();
int nHeight=height/2;
LONG lLineBytes = (width*3+3)/4 *4;
//分配臨時(shí)數(shù)據(jù)空間
temp1 = new BYTE[height*width];
temp2 = new BYTE[height*width];
//從設(shè)備緩存中獲得原始圖像數(shù)據(jù)
for(j=0; j<(int)height; j++)
{
for( i=0; i<(int)width; i++)
{
b=m_pData[j*lLineBytes+3*i];
g=m_pData[j*lLineBytes+3*i+1];
r=m_pData[j*lLineBytes+3*i+2];
temp1[(height-1-j)*width+i]=(BYTE)(0.3*r+0.59*g+0.11*b);
}
}
for(i = 0; i < width; i ++)
{
for(j = 0; j < nHeight; j ++)
{
int h = j *2 ;
temp2[j*width+i] = temp1[h*width+i]; //even
temp2[(nHeight + j)*width+i] = temp1[(h+1)*width+i]; //odd
}
}
//通過圖像的差分，完成小波變換
for(i=0; i<width; i++)
{
for(j=0; j<nHeight-1; j++)
{
temp2[(nHeight + j)*width+i] -= temp2[j*width+i]+128;
}
}
maxVal=temp2[0*width+0];
minVal=temp2[0*width+0];
//得到圖像小波系數(shù)的極大值與極小值
for( j=0; j<(int)height; j++)
{
for( i=0; i<(int)width; i++)
{
if(maxVal<temp2[j*width+i])
maxVal=temp2[j*width+i];
if(minVal>temp2[j*width+i])
minVal=temp2[j*width+i];
}
}
//計(jì)算獲取圖像小波系數(shù)的極值差
difVal=maxVal-minVal;
//小波經(jīng)過處理后，放入顯示緩存中
for(j=0; j<(int)height; j++)
{
for(i=0; i<(int)width; i++)
{
//因?yàn)樾〔ㄗ儞Q后的小波系數(shù)有可能超過255甚至更多，那么就將
//小波系數(shù)的范圍映射到0~255區(qū)間內(nèi)，以后出現(xiàn)類似的處理，目的都是一樣的
tpBuffer=temp2[(height-1-j)*width+i];
tpBuffer-=minVal;
tpBuffer*=255;
tpBuffer/=difVal;
m_pData[j*lLineBytes+3*i] = (BYTE)tpBuffer;
m_pData[j*lLineBytes+3*i+1]= (BYTE)tpBuffer;
m_pData[j*lLineBytes+3*i+2]= (BYTE)tpBuffer;
}
}
//刪除臨時(shí)的數(shù)據(jù)空間
delete temp1;
delete temp2;
}
void CWvltTransDib::Once()
{
// Hangbianhuan();
// Liebianhuan();
int i,j;
LONG width,height,nWidth,nHeight;
BYTE r, g, b;
LPBYTE temp1, temp2,temp3;
float tpBuffer;
short maxVal,minVal,difVal;
width=this->GetWidth();
height=this->GetHeight();
nWidth=width/2;
nHeight=height/2;
LONG lLineBytes = (width*3+3)/4 *4;
//分配臨時(shí)數(shù)據(jù)空間
temp1 = new BYTE[height*width];
temp2 = new BYTE[height*width];
temp3 = new BYTE[height*width];
//從設(shè)備緩存中獲得原始圖像數(shù)據(jù)
for(j=0; j<(int)height; j++)
{
for( i=0; i<(int)width; i++)
{
b=m_pData[j*lLineBytes+3*i];
g=m_pData[j*lLineBytes+3*i+1];
r=m_pData[j*lLineBytes+3*i+2];
temp1[(height-1-j)*width+i]=(BYTE)(0.3*r+0.59*g+0.11*b);
}
}
for(j = 0; j < height; j ++)
{
for(i = 0; i < nWidth; i ++)
{
int w = i *2;
temp2[j*width+i] = temp1[j*width+w]; //偶
temp2[j*width+nWidth+i] = temp1[j*width+w+1]; //奇
}
}
//通過圖像的差分，完成小波變換
for(j=0; j<height; j++)
{
for(i=0; i<nWidth-1; i++)
{
temp2[j*width+nWidth+i] -= temp2[j*width+i]+128;
}
}
for(i=0;i<nWidth;i++)
{
for(j=0;j<nHeight;j++)
{
int h=j*2;
temp3[j*width+i]=temp2[h*width+i];//左上
temp3[(j+nHeight)*width+i]=temp2[(h+1)*width+i];//左下
temp3[j*width+nWidth+i]=temp2[h*width+nWidth+i];//右上
temp3[(j+nWidth)*width+nWidth+i]=temp2[(h+1)*width+nWidth+i];//右下
}
for(j=0;j<nHeight;j++)
{
temp3[(j+nHeight)*width+i]-= temp3[j*width+i]+128;
temp3[(j+nHeight)*width+nWidth+i]-= temp3[j*width+nWidth+i]+128;
}
}
maxVal=temp3[0*width+0];
minVal=temp3[0*width+0];
//得到圖像小波系數(shù)的極大值與極小值
for( j=0; j<(int)height; j++)
{
for( i=0; i<(int)width; i++)
{
if(maxVal<temp3[j*width+i])
maxVal=temp3[j*width+i];
if(minVal>temp3[j*width+i])
minVal=temp3[j*width+i];
}
}
//計(jì)算獲取圖像小波系數(shù)的極值差
difVal=maxVal-minVal;
//小波經(jīng)過處理后，放入顯示緩存中
for(j=0; j<(int)height; j++)
{
for(i=0; i<(int)width; i++)
{
//因?yàn)樾〔ㄗ儞Q后的小波系數(shù)有可能超過255甚至更多，那么就將
//小波系數(shù)的范圍映射到0~255區(qū)間內(nèi)，以后出現(xiàn)類似的處理，目的都是一樣的
tpBuffer=temp3[(height-1-j)*width+i];
tpBuffer-=minVal;
tpBuffer*=255;
tpBuffer/=difVal;
m_pData[j*lLineBytes+3*i] = (BYTE)tpBuffer;
m_pData[j*lLineBytes+3*i+1]= (BYTE)tpBuffer;
m_pData[j*lLineBytes+3*i+2]= (BYTE)tpBuffer;
}
}
//刪除臨時(shí)的數(shù)據(jù)空間
delete temp1;
delete temp2;
delete temp3;
layer1=TRUE;
}
void CWvltTransDib::Twice()
{
Once();
int i,j;
LONG width,height,nWidth,nHeight;
BYTE r, g, b;
LPBYTE temp1, temp2,temp3;
float tpBuffer;
short maxVal,minVal,difVal;
width=this->GetWidth()/2;
height=this->GetHeight()/2;
nWidth=width/2;
nHeight=height/2;
LONG lLineBytes = (this->GetWidth()*3+3)/4 *4;
//分配臨時(shí)數(shù)據(jù)空間
temp1 = new BYTE[height*width];
temp2 = new BYTE[height*width];
temp3 = new BYTE[height*width];
//從設(shè)備緩存中獲得原始圖像數(shù)據(jù)
for(j=0; j<(int)height; j++)
{
for( i=0; i<(int)width; i++)
{
b=m_pData[(j+height)*lLineBytes+3*i];
g=m_pData[(j+height)*lLineBytes+3*i+1];
r=m_pData[(j+height)*lLineBytes+3*i+2];
temp1[(height-1-j)*width+i]=(BYTE)(0.3*r+0.59*g+0.11*b);
}
}
for(j = 0; j < height; j ++)
{
for(i = 0; i < nWidth; i ++)
{
int w = i *2;
temp2[j*width+i] = (temp1[j*width+w]); //偶
temp2[j*width+nWidth+i] = (temp1[j*width+w+1]); //奇
}
}
//通過圖像的差分，完成小波變換
for(j=0; j<height; j++)
{
for(i=0; i<nWidth-1; i++)
{
temp2[j*width+nWidth+i] -= temp2[j*width+i]+128;
}
}
for(i=0;i<nWidth;i++)
{
for(j=0;j<nHeight;j++)
{
int h=j*2;
temp3[j*width+i]=temp2[h*width+i];//左上
temp3[(j+nHeight)*width+i]=temp2[(h+1)*width+i];//左下
temp3[j*width+nWidth+i]=temp2[h*width+nWidth+i];//右上
temp3[(j+nWidth)*width+nWidth+i]=temp2[(h+1)*width+nWidth+i];//右下
}
for(j=0;j<nHeight;j++)
{
temp3[(j+nHeight)*width+i]-= temp3[j*width+i]+128;
temp3[(j+nHeight)*width+nWidth+i]-= temp3[j*width+nWidth+i]+128;
}
}
maxVal=temp3[0*width+0];
minVal=temp3[0*width+0];
//得到圖像小波系數(shù)的極大值與極小值
for( j=0; j<(int)height; j++)
{
for( i=0; i<(int)width; i++)
{
if(maxVal<temp3[j*width+i])
maxVal=temp3[j*width+i];
if(minVal>temp3[j*width+i])
minVal=temp3[j*width+i];
}
}
//計(jì)算獲取圖像小波系數(shù)的極值差
difVal=maxVal-minVal;
//小波經(jīng)過處理后，放入顯示緩存中
for(j=0; j<(int)height; j++)
{
for(i=0; i<(int)width; i++)
{
//因?yàn)樾〔ㄗ儞Q后的小波系數(shù)有可能超過255甚至更多，那么就將
//小波系數(shù)的范圍映射到0~255區(qū)間內(nèi)，以后出現(xiàn)類似的處理，目的都是一樣的
tpBuffer=temp3[(height-1-j)*width+i];
tpBuffer-=minVal;
tpBuffer*=255;
tpBuffer/=difVal;
m_pData[(j+height)*lLineBytes+3*i] = (BYTE)tpBuffer;
m_pData[(j+height)*lLineBytes+3*i+1]= (BYTE)tpBuffer;
m_pData[(j+height)*lLineBytes+3*i+2]= (BYTE)tpBuffer;
}
}
//刪除臨時(shí)的數(shù)據(jù)空間
delete temp1;
delete temp2;
delete temp3;
layer2=TRUE;
}
void CWvltTransDib::Thrice()
{
Twice();
int i,j;
LONG width,height,nWidth,nHeight;
BYTE r, g, b;
LPBYTE temp1, temp2,temp3;
float tpBuffer;
short maxVal,minVal,difVal;
width=this->GetWidth()/4;
height=this->GetHeight()/4;
nWidth=width/2;
nHeight=height/2;
LONG lLineBytes = (this->GetWidth()*3+3)/4 *4;
//分配臨時(shí)數(shù)據(jù)空間
temp1 = new BYTE[height*width];
temp2 = new BYTE[height*width];
temp3 = new BYTE[height*width];
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