[Insight-users] Filter plans

[Prename Surname]

aha i see...
Yes, of course i know this is simple, but starting simple is always the way
to go :)

I think maybe you have misunderstood what i want to do. I dont want to make
a RGB image, i just want to combine 3 different binary mask images into a
single grayscale mask image with values 0,1,2,3 (0=background, 1=gm,
2=wm,3=wm)
If i just manage this i can port it to vtk no problem.
So i just wanted to create a composite filter to do this for me.
Do you see what i mean?

Many regards :)



2006/10/17, Gaëtan Lehmann <gaetan.lehmann at jouy.inra.fr>:
>
>
> Hi,
>
> Most of the time, the simple manipulation like this one can already be
> done in ITK or VTK, so you shouldn't have to create a new filter to do
> that :-)
> However, we are always pleased to see someone motivated to develop some
> new features for the toolkit, especially if he/she want to contribute that
> code to the community. I'm pretty sure you'll find something useful to
> code soon :-)
>
> To combine your 3 images, you can use ComposeRGBImageFilter (1), which
> takes 3 input images and give you a RGB image.
> However, I'm not sure you can pass the rgb image directly to vtk (perhaps
> something to code :-)). You'll have to pass the 3 binary images in vtk
> with ImageToVTKImageFilter, and compose the color image in vtk.
>
> Gaetan
>
> (1) http://www.itk.org/Doxygen/html/classitk_1_1ComposeRGBImageFilter.html
>
>
>
> Le Tue, 17 Oct 2006 19:56:04 +0200, Prename Surname
> <bsd.diverse at gmail.com> a écrit:
>
> > Hello.
> > I am beginning to feel a bit more at home in itk/vtk now. There are
> > still a
> > zillion things to learn about it, but its getting a bit better. So now i
> > have decided that i want to try and make my own filter to get more
> > acquainted with the whole pipeline approach.
> >
> > I have read chapter 13 in the itksoftwareguide, and i have thought about
> > a
> > approach to make my filter. I was hoping some of you experts would tell
> > me
> > if i am completely off, or if my idea is okay.
> > My situation is this:
> > I have a greyscale volume consisting of 182 slices that are 182x218
> > pixels
> > of a brain.
> > I have a mask of corresponding size with values 0 and 255 for the
> > positions
> > of greymatter
> > I have a mask of corresponding size with values 0 and 255 for the
> > positions
> > of whitematter
> > I have a mask of corresponding size with values 0 and 255 for the
> > positions
> > of CSF(brainfluid)
> >
> > Basically i want my filter to combine the 3 masks to a single image, so
> > that
> > i can visualize this image in vtk with different colors for greymatter,
> > whitematter and CSF.
> >
> >
> > Making a filter (lets call it masking)that subclasses
> ImageToImageFilter,
> > and then takes 2 input images and somehow combining them to a single
> > image
> > by just adding them together.
> >
> > I then want to make a compositefilter that actually makes a pipeline of
> 2
> > masking filters, taking first 2 masks, combining them in the masking
> > filter,
> > takes the output of this and combine it with the third mask using again
> > the
> > masking filter, and then outputting the final masked image.
> >
> > Does this sound  feasible, and more important is this a good approach?
> > I hope for some feedback.
> >
> > Many regards and thank you
>
>
>
> --
> 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
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://public.kitware.com/pipermail/insight-users/attachments/20061017/66d689b8/attachment.htm