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

[Daniel Mace]

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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