bmp转tiff

       if(!ISbmp(inputfile))

       {

              return      FALSE;

       }

       if(!IStif(outputfile))

              returnFALSE;

 

  

 

 

       BITMAPFILEHEADERbh;

       CFilefile;

       file.Open("D:\\sunchao\\test\\Debug\\abc.bmp",CFile::modeRead,NULL);

       file.Read(&bh,sizeof(BITMAPFILEHEADER));

       DWORDdwSize = sizeof(BITMAPINFO) + 256*sizeof(RGBQUAD);

      

       LPBITMAPINFOpInfo = (BITMAPINFO*)new BYTE[sizeof(BITMAPINFO) + 256*sizeof(RGBQUAD)];

       file.Read(pInfo,sizeof(BITMAPINFO)+256*sizeof(RGBQUAD));

      

       intheight = pInfo->bmiHeader.biHeight;

       intwidth = pInfo->bmiHeader.biWidth;

      

       intdwBytePerLine = 4*(width * pInfo->bmiHeader.biBitCount + 31)/32;

      

       intnSize = pInfo->bmiHeader.biSizeImage;

      

       if(nSize  == 0)

       {

              nSize= height * dwBytePerLine;

       }

      

       LPBYTEpData = new BYTE[nSize+32];

       file.Seek(bh.bfOffBits,SEEK_SET);

       file.Read(pData,nSize);

       file.Close();

      

       //把C盘上的位图文件a.bmp读出来，把信息部分存到pInfo中，数据部分存到pData中，供下面使用。

       //然后成一个新的TIFF文件 c:\\a.tif,把上面信息写进来。

       //下面的操作和上面读出数据相反，不做过多解释

      

//     uint32    width, height;

       uint16    depth = 8;       

      

       TIFF*out = TIFFOpen("D:\\sunchao\\test\\Debug\\abc.tif","w");//打开TIFF文件

      

      

       TIFFSetField(out,TIFFTAG_SUBFILETYPE, FILETYPE_PAGE);//表示存的图是多帧的

       intnCur=1;//当前的帧数

       intnTotal=1;//总帧数

       TIFFSetField(out,TIFFTAG_PAGENUMBER, nCur,nTotal);//设置该帧属性

      

       width= pInfo->bmiHeader.biWidth;

       height= pInfo->bmiHeader.biHeight;

      

       TIFFSetField(out,TIFFTAG_IMAGEWIDTH, width);

       TIFFSetField(out,TIFFTAG_IMAGELENGTH, height);

       TIFFSetField(out,TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);

       TIFFSetField(out,TIFFTAG_SAMPLESPERPIXEL, 1);

       TIFFSetField(out,TIFFTAG_BITSPERSAMPLE, depth);

       TIFFSetField(out,TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);

      

       uint16    photometric = PHOTOMETRIC_MINISBLACK;//表示存放格式为RGB

       TIFFSetField(out,TIFFTAG_PHOTOMETRIC, photometric);

       TIFFSetField(out,TIFFTAG_ROWSPERSTRIP,height);

      

      

      

       uint16compression = COMPRESSION_LZW;//

       TIFFSetField(out,TIFFTAG_COMPRESSION, compression);

       //TIFF按LZH压缩

      

       uint32  size;

       char*scanbuf;

       size= ((width * pInfo->bmiHeader.biBitCount + 31) /32)*4;

       scanbuf= (char *) _TIFFmalloc(size);

       intnBitsPerPixel = pInfo->bmiHeader.biBitCount;

       BYTE* bits;

       for(intnLines = 0; nLines < height; nLines++)

       {

 

              bits= pData +width*height- nLines * width;

              if   (TIFFWriteScanline(out,bits,   nLines,  0)==-1)  return FALSE;

       }

      

       _TIFFfree(scanbuf);

       TIFFWriteDirectory(out);

       deletepData;

       pData= NULL;

       deletepInfo;

       pInfo= NULL;

       //到这里，向TIFF文件加了一张图，如再加下一张的话，循环操作

      

       TIFFClose(out);

       returnTRUE;