[Insight-users] ImageRegistration1 Problem

[Luis Ibanez]

Hi Eiii,

1) In ITK 1.2 the image metrics were sensitive to the choice of the
    pixel type due to a vulnerability of the GradientRecursiveGaussian
    image filter.  This has been fixed now.  Please download the CVS
    version of the toolkit. It is pretty much what you will see in
    ITK 1.4 when it is released in a couple of weeks from now.

2) PNG is a poor format for medical images. It is supported in ITK
    simply because it facilitates to do display with ubiquitous image
    viewers.  The PNG format only supports "unsigned char", and "unsigned
    short". This is an intrinsic limitation of PNG, not a limitation
    of the ITK implementation.

    For serious work with medical images you may want to use image
    file formats like:

    - MetaImage
    - Analyze
    - Stimulate
    - VTK

    Please look at the FAQ for details on the fileformats supported
    in ITK.

         http://www . itk . org/cgi-bin/InsightFAQ/



Regards,


    Luis



---------------
宋涛 wrote:
> In ImageRegistration1 example ,png file is " float " PixelType. if I change it with "unsigned char" ,result is wrong.
> 
> I want to know how to create "float" PixelType png file.
> 
> Thanks in Advance
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