[Insight-users] lsm reader fails for 2 channels ?

[Alexandre GOUAILLARD]

Hi dan,

As far as I know, vtkLSMReader is part of the BioImageXD source code, which
is under GPL. We would like our code to be BSD and thus can not integrate
that file in our repository. We could have a separate tool, but it is nt
really satisfactory.

Please send over the LSM file technical document, I'll evaluate the amount
of work to improve the actual itk LSM reader. Thanks in advance, LSM reader
is a must for us.

Another option would be to have the original author of the vtkLSMReader to
grant me permission to use their file as an inspiration (i.e. To provide me
the file under a BSD-ish licence). Is there any of them on the ITK mailing
list?

It looks like it's a bug of the ITK implementation anyway.

alex


On 9/18/07 5:34 PM, "Daniel Mace" <dlm19 at duke.edu> wrote:

> Alex,
> 
> I can confirm that the LSM reader fails for more than one channel (I'm
> pretty sure it's not just 3, although I could be wrong).  Your best best
> is to use the VTKLSMReader file and convert it from a VTK image to an
> ITK image.  A direct implementation of a robust LSM reader in ITK would
> be nice (I have the LSM file format technical document if you're feeling
> ambitious ;) ).
> 
> Cheers,
> Dan
> 
> Alex. GOUAILLARD wrote:
>> hi all,
>> 
>> I tried the itkLSMImageIO filter on a two channels image
>> (http://www.creatis.insa-lyon.fr/~agouaillard/LSMReaderTest/) and it
>> failed. The image is a 512*680, with two 12 bits channels.
>> 
>> No test is provided on the toolkit for an lsm file with two channels.
>> I used the exisitng test (Testing/Code/IO/itkLSMImageIOTest.cxx) and
>> modified the pixeltype to be:
>> 
>> typedef itk::Vector< float, 2 >  InputPixelType;
>> 
>> and had the following error message:
>> "Sorry, can not handle RGB image with color channels=2."
>> which comes from the itktiff lib (tif_getimage.c:138), and
>> "Cannot read TIFF image or as TIFF RGBA image" which comes from
>> itkTiffImageIO.cxx:1069.
>> 
>> Am I doing something wrong with the image type, or shall I fill a bug
>> report?
>> 
>> alex
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>