Exception while reading multiframe TIFF containing different imageformats

  • Thread starter Thread starter sascha.folville
  • Start date Start date
S

sascha.folville

Hi,

I've some trouble reading the containing frames of a multiframe tiff.
First frame is a 1700X2400 px CCITT4, second in JPG 820x1200, third is
a CCITT again ... and so on.

My function extracts the CCITT-frames correct, but the second, fourth,
etc. frames causes a general GDI+ error.

Hope someone can help!

Sascha

Here is my code:

public Image GetFrame(int frameNumber)
{
System.Drawing.Image image=Image.FromFile(_ImageFileName,true);

MemoryStream ms=null;
Image retImage=null;
try
{
ms=new MemoryStream();
Guid objGuid=image.FrameDimensionsList[0];
FrameDimension objDimension=new FrameDimension(objGuid);

image.SelectActiveFrame(objDimension,frameNumber);
image.Save(ms,ImageFormat.Bmp);

retImage=Image.FromStream(ms);

return retImage;
}
catch (Exception ex)
{
if (ms!=null)
{
ms.Close();
}
if (retImage!=null)
{
retImage.Dispose();
}
throw;
}
}
 
Hi,
I've some trouble reading the containing frames of a multiframe tiff.
First frame is a 1700X2400 px CCITT4, second in JPG 820x1200, third is
a CCITT again ... and so on.
Click to expand...

While I can't help directly on the issue, I have had similar problems
with GDI+ and multipage tiffs. The main issue being that GDI+ loads the
full image in memory (all the pages) and this can lead to out of of
memory errors on big files (say a hundred of pages)

Personally in my own apps I switched to freeimage
http://freeimage.sourceforge.net/

and all those issues dissapeared.

Might be an idea.
Best regards,
Adrian.
 
Hi, thanks for your answer,
but I don't think its a memory problem, because only every second
image has this problem.

Sascha
 
Hi,

I've some trouble reading the containing frames of a multiframe tiff.
First frame is a 1700X2400 px CCITT4, second in JPG 820x1200, third is
a CCITT again ... and so on.

My function extracts the CCITT-frames correct, but the second, fourth,
etc. frames causes a general GDI+ error.

Hope someone can help!

Sascha

Here is my code:

public Image GetFrame(int frameNumber)
{
System.Drawing.Image image=Image.FromFile(_ImageFileName,true);

MemoryStream ms=null;
Image retImage=null;
try
{
ms=new MemoryStream();
Guid objGuid=image.FrameDimensionsList[0];
FrameDimension objDimension=new FrameDimension(objGuid);

image.SelectActiveFrame(objDimension,frameNumber);
image.Save(ms,ImageFormat.Bmp);

retImage=Image.FromStream(ms);

return retImage;
}
catch (Exception ex)
{
if (ms!=null)
{
ms.Close();
}
if (retImage!=null)
{
retImage.Dispose();
}
throw;
}
}
Click to expand...

Sascha,

I created a multipage tiff with alternating jpeg pages and in a small
test program used your function to successfully return an Image
object.

Could the problem be the way you're (if you're doing it) creating the
tiffs?

The program I used to create tiffs can be found here:
http://www.bobpowell.net/generating_multipage_tiffs.htm

The program I modified to use your function can be found here:
http://www.bobpowell.net/addframes.htm


Is there a specific line in your function that's throwing the error?


-Jay
 
Hi,
Click to expand...
I've some trouble reading the containing frames of a multiframe tiff.
First frame is a 1700X2400 px CCITT4, second in JPG 820x1200, third is
a CCITT again ... and so on.
Click to expand...
My function extracts the CCITT-frames correct, but the second, fourth,
etc. frames causes a general GDI+ error.
Click to expand...
Hope someone can help!

Here is my code:
Click to expand...
public Image GetFrame(int frameNumber)
{
System.Drawing.Image image=Image.FromFile(_ImageFileName,true);
Click to expand...
MemoryStream ms=null;
Image retImage=null;
try
{
ms=new MemoryStream();
Guid objGuid=image.FrameDimensionsList[0];
FrameDimension objDimension=new FrameDimension(objGuid);
image.SelectActiveFrame(objDimension,frameNumber);
image.Save(ms,ImageFormat.Bmp);
Click to expand...
retImage=Image.FromStream(ms);
Click to expand...

return retImage;
}
catch (Exception ex)
{
if (ms!=null)
{
ms.Close();
}
if (retImage!=null)
{
retImage.Dispose();
}
throw;
}
}
Click to expand...

Sascha,

I created a multipage tiff with alternating jpeg pages and in a small
test program used your function to successfully return an Image
object.

Could the problem be the way you're (if you're doing it) creating the
tiffs?

The program I used to create tiffs can be found here:http://www.bobpowell.net/generating_multipage_tiffs.htm

The program I modified to use your function can be found here:http://www.bobpowell.net/addframes.htm

Is there a specific line in your function that's throwing the error?

-Jay
Click to expand...

Hi Jay,

the error occurs at
"image.SelectActiveFrame(objDimension,frameNumber); ".
The TIFF is not created by myself. I get it and have to work with it.
But now I found out, that the ordinary windows-fax-viewer has the same
problem. On my workstation such images are opened with Microsoft
Office Document Imaging Viewer by default ... so I didnt see the
problem that way.

Sascha
 
Hi ng,

I've got the answer from Micosoft: GDI+ does not support Jpeg
compression of TIFF files.

So, I have to search for another lib.

Sascha
 
I don't know if it works but have you tried FreeImage??

--
--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

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