将图像的像素数据保存到文本文件

主要的代码如下：

void CICETIMDlg::OnBtnSavepixel()
{
 // TODO: Add your control notification handler code here
 if(m_dib.GetHeight()==0)
 {
  AfxMessageBox("对不起，请先打开位图文件");
  return;
 }

 CString fileName;
 char szFilter[]="文本文件(*.txt)|*.txt|All Files(*.*)|*.*||";
 CFileDialog dlg(false,"*.txt",NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,szFilter);
 if(dlg.DoModal()==IDOK)
 {
  UpdateData(true);
  fileName=dlg.GetPathName();
 }
 else
 {
  return;
 }

 //从CString转换到char*
 fileName.Replace(_T(" //"),_T("////"));
 char* filename=(char*)fileName.GetBuffer(fileName.GetLength());
 fileName.ReleaseBuffer();

 ofstream outfile;
 outfile.open(filename);

 int nHeight=m_dib.GetHeight();
 int nWidth=m_dib.GetWidth();
 int nBitCount=m_dib.GetBitCount();
 long lLineBytes=m_dib.GetLineBytes();
 outfile<<"*****图片信息*****/r/n";
 outfile<<"图像高度:"< outfile<<"图像宽度:"< outfile<<"图像位数:"< outfile<<"图像每行所占的字节数:"< outfile<<"****************"<<"/r/n";
 BYTE* pdib=m_dib.GetDibData();
 for(int i=0;i {
  for(int j=0;j  {
   BYTE B,G,R;
   B=*(pdib+lLineBytes*(nHeight-1-i)+j);
   if(nBitCount==8)
   {
    outfile<<"("<<(nHeight-1-i)<<","<   }
   else
   {
    outfile<<"("<<(nHeight-1-i)<<","<     <<(int)B<<"/r/n";
    j++;
    G=*(pdib+lLineBytes*(nHeight-1-i)+j);
    outfile<<"("<<(nHeight-1-i)<<","<     <<(int)G<<"/r/n";
    j++;
    R=*(pdib+lLineBytes*(nHeight-1-i)+j);
    outfile<<"("<<(nHeight-1-i)<<","<     <<(int)R<<"/r/n";
   }
  }
  outfile<<"/r/n";
 }
 outfile.close();
}
对于24的图片来讲，保存后的文本文件内容类似于：

*****图片信息*****

图像高度:162

图像宽度:179

图像位数:24

图像每行所占的字节数:540

****************

(161,0)=B178

(161,1)=G178

(161,2)=R178

(161,3)=B192

(161,4)=G192

(161,5)=R192

(161,6)=B215

(161,7)=G215

(161,8)=R215

(161,9)=B204

(161,10)=G204

(161,11)=R204

(161,12)=B234

(161,13)=G234

(161,14)=R234

(161,15)=B221

(161,16)=G221

(161,17)=R221

(161,18)=B227

(161,19)=G227

(161,20)=R227

(161,21)=B227

(161,22)=G227

(161,23)=R227

(161,24)=B221

对于8位的图片来说，保存后的文本文件内容类似于：

*****图片信息*****

图像高度:512

图像宽度:512

图像位数:8

图像每行所占的字节数:512

****************

(511,0)=80

(511,1)=76

(511,2)=88

(511,3)=92

(511,4)=96

(511,5)=100

(511,6)=104

(511,7)=104

(511,8)=100

(511,9)=100

(511,10)=100

(511,11)=104

(511,12)=108

(511,13)=108

(511,14)=112

(511,15)=112

(511,16)=112

(511,17)=112

(511,18)=112

(511,19)=116

(511,20)=116

(511,21)=120

(511,22)=124

(511,23)=124

(511,24)=120

(511,25)=116

(511,26)=116

(511,27)=116

(511,28)=112

(511,29)=112

(511,30)=108

(511,31)=104

(511,32)=100

(511,33)=96

(511,34)=92

(511,35)=92

(511,36)=96

(511,37)=100

(511,38)=108

(511,39)=108

(511,40)=100

(511,41)=88

(511,42)=76

(511,43)=68

(511,44)=68

(511,45)=72

(511,46)=72

(511,47)=72

(511,48)=68

(511,49)=60

(511,50)=44

(511,51)=32

(511,52)=28

(511,53)=28