G
Guest
I have the following code and when I use it to split a tiff file in seperate
tiff files I receive a general gdi+ error. I have no clue what is going wrong.
From http://www.codeproject.com/csharp/TiffManager.asp
Code:
using System;
using System.IO;
using System.Drawing;
using System.Drawing.Imaging;
using System.Collections;
/// <summary>
/// Summary description for TiffManager.
/// </summary>
public class TiffManager : IDisposable
{
private string _ImageFileName;
private int _PageNumber;
private Image image;
private string _TempWorkingDir;
public TiffManager(string imageFileName)
{
this._ImageFileName=imageFileName;
image=Image.FromFile(_ImageFileName);
GetPageNumber();
}
public TiffManager()
{
}
/// <summary>
/// Read the image file for the page number.
/// </summary>
private void GetPageNumber()
{
Guid objGuid=image.FrameDimensionsList[0];
FrameDimension objDimension=new FrameDimension(objGuid);
//Gets the total number of frames in the .tiff file
_PageNumber=image.GetFrameCount(objDimension);
return;
}
/// <summary>
/// Read the image base string,
/// Assert(GetFileNameStartString(@"c:\test\abc.tif"),"abc")
/// </summary>
/// <param name="strFullName"></param>
/// <returns></returns>
private string GetFileNameStartString(string strFullName)
{
int posDot=_ImageFileName.LastIndexOf(".");
int posSlash=_ImageFileName.LastIndexOf(@"\");
return _ImageFileName.Substring(posSlash+1,posDot-posSlash-1);
}
/// <summary>
/// This function will output the image to a TIFF file with specific
compression format
/// </summary>
/// <param name="outPutDirectory">The splited images' directory</param>
/// <param name="format">The codec for compressing</param>
/// <returns>splited file name array list</returns>
public ArrayList SplitTiffImage(string outPutDirectory,EncoderValue format)
{
string
fileStartString=outPutDirectory+"\\"+GetFileNameStartString(_ImageFileName);
ArrayList splitedFileNames=new ArrayList();
try
{
Guid objGuid=image.FrameDimensionsList[0];
FrameDimension objDimension=new FrameDimension(objGuid);
//Saves every frame as a separate file.
Encoder enc=Encoder.Compression;
int curFrame=0;
for (int i=0;i<_PageNumber;i++)
{
image.SelectActiveFrame(objDimension,curFrame);
EncoderParameters ep=new EncoderParameters(1);
ep.Param[0]=new EncoderParameter(enc,(long)format);
ImageCodecInfo info=GetEncoderInfo("image/tiff");
//Save the master bitmap
string fileName=string.Format("{0}{1}.TIF",fileStartString,i.ToString());
image.Save(fileName,info,ep);
splitedFileNames.Add(fileName);
curFrame++;
}
}
catch (Exception)
{
throw;
}
return splitedFileNames;
}
/// <summary>
/// This function will join the TIFF file with a specific compression format
/// </summary>
/// <param name="imageFiles">string array with source image files</param>
/// <param name="outFile">target TIFF file to be produced</param>
/// <param name="compressEncoder">compression codec enum</param>
public void JoinTiffImages(string[] imageFiles,string outFile,EncoderValue
compressEncoder)
{
try
{
//If only one page in the collection, copy it directly to the target file.
if (imageFiles.Length==1)
{
File.Copy(imageFiles[0],outFile,true);
return;
}
//use the save encoder
Encoder enc=Encoder.SaveFlag;
EncoderParameters ep=new EncoderParameters(2);
ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.MultiFrame);
ep.Param[1] = new
EncoderParameter(Encoder.Compression,(long)compressEncoder);
Bitmap pages=null;
int frame=0;
ImageCodecInfo info=GetEncoderInfo("image/tiff");
foreach(string strImageFile in imageFiles)
{
if(frame==0)
{
pages=(Bitmap)Image.FromFile(strImageFile);
//save the first frame
pages.Save(outFile,info,ep);
}
else
{
//save the intermediate frames
ep.Param[0]=new
EncoderParameter(enc,(long)EncoderValue.FrameDimensionPage);
Bitmap bm=(Bitmap)Image.FromFile(strImageFile);
pages.SaveAdd(bm,ep);
}
if(frame==imageFiles.Length-1)
{
//flush and close.
ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.Flush);
pages.SaveAdd(ep);
}
frame++;
}
}
catch (Exception)
{
throw;
}
return;
}
/// <summary>
/// This function will join the TIFF file with a specific compression format
/// </summary>
/// <param name="imageFiles">array list with source image files</param>
/// <param name="outFile">target TIFF file to be produced</param>
/// <param name="compressEncoder">compression codec enum</param>
public void JoinTiffImages(ArrayList imageFiles,string
outFile,EncoderValue compressEncoder)
{
try
{
//If only one page in the collection, copy it directly to the target file.
if (imageFiles.Count==1)
{
File.Copy((string)imageFiles[0],outFile,true);
return;
}
//use the save encoder
Encoder enc=Encoder.SaveFlag;
EncoderParameters ep=new EncoderParameters(2);
ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.MultiFrame);
ep.Param[1] = new
EncoderParameter(Encoder.Compression,(long)compressEncoder);
Bitmap pages=null;
int frame=0;
ImageCodecInfo info=GetEncoderInfo("image/tiff");
foreach(string strImageFile in imageFiles)
{
if(frame==0)
{
pages=(Bitmap)Image.FromFile(strImageFile);
//save the first frame
pages.Save(outFile,info,ep);
}
else
{
//save the intermediate frames
ep.Param[0]=new
EncoderParameter(enc,(long)EncoderValue.FrameDimensionPage);
Bitmap bm=(Bitmap)Image.FromFile(strImageFile);
pages.SaveAdd(bm,ep);
bm.Dispose();
}
if(frame==imageFiles.Count-1)
{
//flush and close.
ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.Flush);
pages.SaveAdd(ep);
}
frame++;
}
}
catch (Exception ex)
{
#if DEBUG
Console.WriteLine(ex.Message);
#endif
throw;
}
return;
}
/// <summary>
/// Remove a specific page within the image object and save the result to
an output image file.
/// </summary>
/// <param name="pageNumber">page number to be removed</param>
/// <param name="compressEncoder">compress encoder after operation</param>
/// <param name="strFileName">filename to be outputed</param>
/// <returns></</returns>
public void RemoveAPage(int pageNumber,EncoderValue compressEncoder,string
strFileName)
{
try
{
//Split the image files to single pages.
ArrayList arrSplited=SplitTiffImage(this._TempWorkingDir,compressEncoder);
//Remove the specific page from the collection
string
strPageRemove=string.Format("{0}\\{1}{2}.TIF",_TempWorkingDir,GetFileNameStartString(this._ImageFileName),pageNumber);
arrSplited.Remove(strPageRemove);
JoinTiffImages(arrSplited,strFileName,compressEncoder);
}
catch(Exception)
{
throw;
}
return;
}
/// <summary>
/// Getting the supported codec info.
/// </summary>
/// <param name="mimeType">description of mime type</param>
/// <returns>image codec info</returns>
private ImageCodecInfo GetEncoderInfo(string mimeType)
{
ImageCodecInfo[] encoders=ImageCodecInfo.GetImageEncoders();
for (int j=0;j<encoders.Length;j++)
{
if (encoders[j].MimeType==mimeType)
return encoders[j];
}
throw new Exception( mimeType + " mime type not found in ImageCodecInfo" );
}
/// <summary>
/// Return the memory steam of a specific page
/// </summary>
/// <param name="pageNumber">page number to be extracted</param>
/// <returns>image object</returns>
public Image GetSpecificPage(int pageNumber)
{
MemoryStream ms=null;
Image retImage=null;
try
{
ms=new MemoryStream();
Guid objGuid=image.FrameDimensionsList[0];
FrameDimension objDimension=new FrameDimension(objGuid);
image.SelectActiveFrame(objDimension,pageNumber);
image.Save(ms,ImageFormat.Bmp);
retImage=Image.FromStream(ms);
return retImage;
}
catch (Exception)
{
ms.Close();
retImage.Dispose();
throw;
}
}
/// <summary>
/// Convert the existing TIFF to a different codec format
/// </summary>
/// <param name="compressEncoder"></param>
/// <returns></returns>
public void ConvertTiffFormat(string strNewImageFileName,EncoderValue
compressEncoder)
{
//Split the image files to single pages.
ArrayList arrSplited=SplitTiffImage(this._TempWorkingDir,compressEncoder);
JoinTiffImages(arrSplited,strNewImageFileName,compressEncoder);
return;
}
/// <summary>
/// Image file to operate
/// </summary>
public string ImageFileName
{
get
{
return _ImageFileName;
}
set
{
_ImageFileName=value;
}
}
/// <summary>
/// Buffering directory
/// </summary>
public string TempWorkingDir
{
get
{
return _TempWorkingDir;
}
set
{
_TempWorkingDir=value;
}
}
/// <summary>
/// Image page number
/// </summary>
public int PageNumber
{
get
{
return _PageNumber;
}
}
#region IDisposable Members
public void Dispose()
{
image.Dispose();
System.GC.SuppressFinalize(this);
}
#endregion
}
tiff files I receive a general gdi+ error. I have no clue what is going wrong.
From http://www.codeproject.com/csharp/TiffManager.asp
Code:
using System;
using System.IO;
using System.Drawing;
using System.Drawing.Imaging;
using System.Collections;
/// <summary>
/// Summary description for TiffManager.
/// </summary>
public class TiffManager : IDisposable
{
private string _ImageFileName;
private int _PageNumber;
private Image image;
private string _TempWorkingDir;
public TiffManager(string imageFileName)
{
this._ImageFileName=imageFileName;
image=Image.FromFile(_ImageFileName);
GetPageNumber();
}
public TiffManager()
{
}
/// <summary>
/// Read the image file for the page number.
/// </summary>
private void GetPageNumber()
{
Guid objGuid=image.FrameDimensionsList[0];
FrameDimension objDimension=new FrameDimension(objGuid);
//Gets the total number of frames in the .tiff file
_PageNumber=image.GetFrameCount(objDimension);
return;
}
/// <summary>
/// Read the image base string,
/// Assert(GetFileNameStartString(@"c:\test\abc.tif"),"abc")
/// </summary>
/// <param name="strFullName"></param>
/// <returns></returns>
private string GetFileNameStartString(string strFullName)
{
int posDot=_ImageFileName.LastIndexOf(".");
int posSlash=_ImageFileName.LastIndexOf(@"\");
return _ImageFileName.Substring(posSlash+1,posDot-posSlash-1);
}
/// <summary>
/// This function will output the image to a TIFF file with specific
compression format
/// </summary>
/// <param name="outPutDirectory">The splited images' directory</param>
/// <param name="format">The codec for compressing</param>
/// <returns>splited file name array list</returns>
public ArrayList SplitTiffImage(string outPutDirectory,EncoderValue format)
{
string
fileStartString=outPutDirectory+"\\"+GetFileNameStartString(_ImageFileName);
ArrayList splitedFileNames=new ArrayList();
try
{
Guid objGuid=image.FrameDimensionsList[0];
FrameDimension objDimension=new FrameDimension(objGuid);
//Saves every frame as a separate file.
Encoder enc=Encoder.Compression;
int curFrame=0;
for (int i=0;i<_PageNumber;i++)
{
image.SelectActiveFrame(objDimension,curFrame);
EncoderParameters ep=new EncoderParameters(1);
ep.Param[0]=new EncoderParameter(enc,(long)format);
ImageCodecInfo info=GetEncoderInfo("image/tiff");
//Save the master bitmap
string fileName=string.Format("{0}{1}.TIF",fileStartString,i.ToString());
image.Save(fileName,info,ep);
splitedFileNames.Add(fileName);
curFrame++;
}
}
catch (Exception)
{
throw;
}
return splitedFileNames;
}
/// <summary>
/// This function will join the TIFF file with a specific compression format
/// </summary>
/// <param name="imageFiles">string array with source image files</param>
/// <param name="outFile">target TIFF file to be produced</param>
/// <param name="compressEncoder">compression codec enum</param>
public void JoinTiffImages(string[] imageFiles,string outFile,EncoderValue
compressEncoder)
{
try
{
//If only one page in the collection, copy it directly to the target file.
if (imageFiles.Length==1)
{
File.Copy(imageFiles[0],outFile,true);
return;
}
//use the save encoder
Encoder enc=Encoder.SaveFlag;
EncoderParameters ep=new EncoderParameters(2);
ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.MultiFrame);
ep.Param[1] = new
EncoderParameter(Encoder.Compression,(long)compressEncoder);
Bitmap pages=null;
int frame=0;
ImageCodecInfo info=GetEncoderInfo("image/tiff");
foreach(string strImageFile in imageFiles)
{
if(frame==0)
{
pages=(Bitmap)Image.FromFile(strImageFile);
//save the first frame
pages.Save(outFile,info,ep);
}
else
{
//save the intermediate frames
ep.Param[0]=new
EncoderParameter(enc,(long)EncoderValue.FrameDimensionPage);
Bitmap bm=(Bitmap)Image.FromFile(strImageFile);
pages.SaveAdd(bm,ep);
}
if(frame==imageFiles.Length-1)
{
//flush and close.
ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.Flush);
pages.SaveAdd(ep);
}
frame++;
}
}
catch (Exception)
{
throw;
}
return;
}
/// <summary>
/// This function will join the TIFF file with a specific compression format
/// </summary>
/// <param name="imageFiles">array list with source image files</param>
/// <param name="outFile">target TIFF file to be produced</param>
/// <param name="compressEncoder">compression codec enum</param>
public void JoinTiffImages(ArrayList imageFiles,string
outFile,EncoderValue compressEncoder)
{
try
{
//If only one page in the collection, copy it directly to the target file.
if (imageFiles.Count==1)
{
File.Copy((string)imageFiles[0],outFile,true);
return;
}
//use the save encoder
Encoder enc=Encoder.SaveFlag;
EncoderParameters ep=new EncoderParameters(2);
ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.MultiFrame);
ep.Param[1] = new
EncoderParameter(Encoder.Compression,(long)compressEncoder);
Bitmap pages=null;
int frame=0;
ImageCodecInfo info=GetEncoderInfo("image/tiff");
foreach(string strImageFile in imageFiles)
{
if(frame==0)
{
pages=(Bitmap)Image.FromFile(strImageFile);
//save the first frame
pages.Save(outFile,info,ep);
}
else
{
//save the intermediate frames
ep.Param[0]=new
EncoderParameter(enc,(long)EncoderValue.FrameDimensionPage);
Bitmap bm=(Bitmap)Image.FromFile(strImageFile);
pages.SaveAdd(bm,ep);
bm.Dispose();
}
if(frame==imageFiles.Count-1)
{
//flush and close.
ep.Param[0]=new EncoderParameter(enc,(long)EncoderValue.Flush);
pages.SaveAdd(ep);
}
frame++;
}
}
catch (Exception ex)
{
#if DEBUG
Console.WriteLine(ex.Message);
#endif
throw;
}
return;
}
/// <summary>
/// Remove a specific page within the image object and save the result to
an output image file.
/// </summary>
/// <param name="pageNumber">page number to be removed</param>
/// <param name="compressEncoder">compress encoder after operation</param>
/// <param name="strFileName">filename to be outputed</param>
/// <returns></</returns>
public void RemoveAPage(int pageNumber,EncoderValue compressEncoder,string
strFileName)
{
try
{
//Split the image files to single pages.
ArrayList arrSplited=SplitTiffImage(this._TempWorkingDir,compressEncoder);
//Remove the specific page from the collection
string
strPageRemove=string.Format("{0}\\{1}{2}.TIF",_TempWorkingDir,GetFileNameStartString(this._ImageFileName),pageNumber);
arrSplited.Remove(strPageRemove);
JoinTiffImages(arrSplited,strFileName,compressEncoder);
}
catch(Exception)
{
throw;
}
return;
}
/// <summary>
/// Getting the supported codec info.
/// </summary>
/// <param name="mimeType">description of mime type</param>
/// <returns>image codec info</returns>
private ImageCodecInfo GetEncoderInfo(string mimeType)
{
ImageCodecInfo[] encoders=ImageCodecInfo.GetImageEncoders();
for (int j=0;j<encoders.Length;j++)
{
if (encoders[j].MimeType==mimeType)
return encoders[j];
}
throw new Exception( mimeType + " mime type not found in ImageCodecInfo" );
}
/// <summary>
/// Return the memory steam of a specific page
/// </summary>
/// <param name="pageNumber">page number to be extracted</param>
/// <returns>image object</returns>
public Image GetSpecificPage(int pageNumber)
{
MemoryStream ms=null;
Image retImage=null;
try
{
ms=new MemoryStream();
Guid objGuid=image.FrameDimensionsList[0];
FrameDimension objDimension=new FrameDimension(objGuid);
image.SelectActiveFrame(objDimension,pageNumber);
image.Save(ms,ImageFormat.Bmp);
retImage=Image.FromStream(ms);
return retImage;
}
catch (Exception)
{
ms.Close();
retImage.Dispose();
throw;
}
}
/// <summary>
/// Convert the existing TIFF to a different codec format
/// </summary>
/// <param name="compressEncoder"></param>
/// <returns></returns>
public void ConvertTiffFormat(string strNewImageFileName,EncoderValue
compressEncoder)
{
//Split the image files to single pages.
ArrayList arrSplited=SplitTiffImage(this._TempWorkingDir,compressEncoder);
JoinTiffImages(arrSplited,strNewImageFileName,compressEncoder);
return;
}
/// <summary>
/// Image file to operate
/// </summary>
public string ImageFileName
{
get
{
return _ImageFileName;
}
set
{
_ImageFileName=value;
}
}
/// <summary>
/// Buffering directory
/// </summary>
public string TempWorkingDir
{
get
{
return _TempWorkingDir;
}
set
{
_TempWorkingDir=value;
}
}
/// <summary>
/// Image page number
/// </summary>
public int PageNumber
{
get
{
return _PageNumber;
}
}
#region IDisposable Members
public void Dispose()
{
image.Dispose();
System.GC.SuppressFinalize(this);
}
#endregion
}