[Insight-users] how to map grayscale to color

[Gaëtan Lehmann]

Le Sat, 19 Aug 2006 14:21:32 +0200, <kdsfinger at gmail.com> a écrit:

> That's even better. Is there any restriction to the number of segments
> (<unsigned char or < unsigned short)? Thanks a lot.

No, there is no such restriction. The label must be integral, but that's  
all.
Please submit a (small) review if you find it useful, or think to some  
things to enhance :-)

Thanks,

Gaetan

> zl2k
>
> On 8/19/06, Gaëtan Lehmann <gaetan.lehmann at jouy.inra.fr> wrote:
>>
>> Hi,
>>
>> You may want to look at the label overlay contribution I have submited  
>> to
>> the insight journal.
>> It produce a similar result, but with a more distinct set of colors and
>> some options to manage the background. Another class in this contrib let
>> you show the labels superimposed onto the original image.
>>
>> http://insight-journal.org/dspace/bitstream/1926/172/5/Label_overlay.pdf
>> http://insight-journal.org/dspace/bitstream/1926/172/4/labelOverlay.tar.gz
>>
>> All the colored images in the following article where also obtained with
>> those classes:
>> http://insight-journal.org/dspace/bitstream/1926/202/2/The_watershed_transform_in_ITK_-_discussion_and_new_developments.pdf
>>
>> Regards,
>>
>> Gaetan
>>
>>
>> Le Sat, 19 Aug 2006 01:58:52 +0200, Pingkun Yan <pingkun.yan at gmail.com>  
>> a
>> écrit:
>>
>> > Hi,
>> >
>> > You may look at the "itkScalarToRGBPixelFunctor". It seems to be what
>> > you want. You can find the example usage in the itk watershed
>> > segmentation example.
>> >
>> > HTH,
>> > Pingkun
>> >
>> > On 8/18/06, kdsfinger at gmail.com <kdsfinger at gmail.com> wrote:
>> >> hi, all
>> >> After finishing segmentation, I'd like to label each region in color
>> >> and display in the widget. Is there any feasible way to map the
>> >> grayscale (the label on the original segmented image) to color rgb?
>> >> Thank you.
>> >> Basically, I am looking for a user defined filter, taking the input
>> >> image, do some calculation for each pixel, and produce an output
>> >> image.
>> >> zl2k
>> >> _______________________________________________
>> >> Insight-users mailing list
>> >> Insight-users at itk.org
>> >> http://www.itk.org/mailman/listinfo/insight-users
>> >>
>> > _______________________________________________
>> > Insight-users mailing list
>> > Insight-users at itk.org
>> > http://www.itk.org/mailman/listinfo/insight-users
>>
>>
>>
>> --
>> Gaëtan Lehmann
>> Biologie du Développement et de la Reproduction
>> INRA de Jouy-en-Josas (France)
>> tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
>> http://voxel.jouy.inra.fr
>>



-- 
Gaëtan Lehmann
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)
tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
http://voxel.jouy.inra.fr