There is nothing that will give you that. You can use a itk::Image< VariableLengthVector< TScalarType > >. You'll need your custom reader that reads each pixel and sets the vector length on a per pixel basis. <div>
<br></div><div>That said, you can't use the standard itk ImageIO classes, since there is nothing to read in this kind of a file. You can't use the standard ITK imaging filters, since there is nothing that will run on such images. </div>
<div><br></div><div>--</div><div>karthik<br><div><br><div class="gmail_quote">On Sun, Nov 20, 2011 at 6:59 AM, David Doria <span dir="ltr"><<a href="mailto:daviddoria@gmail.com">daviddoria@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="im">On Sat, Nov 19, 2011 at 8:22 PM, ravikiranj <<a href="mailto:ravikiran.j.127@gmail.com">ravikiran.j.127@gmail.com</a>> wrote:<br>
><br>
> Actually the number of values I need to write per pixel varies from 0..5000<br>
> but the average number of components per pixel maybe like 20-30 (highly<br>
> sparse, compared to max component = 5000). If I understand correctly, Vector<br>
> Image will first allocate 5000 components per pixel irrespective of I use it<br>
> or not (I think I know this because I'm getting out of memory error during<br>
> allocation of image). Is there a way I can write say 1 component for first<br>
> pixel, 20 components for second pixel and then 1000 components for 3rd pixel<br>
> and so on.. ?<br>
><br>
> I set an initial vector length and try pixelValue.SetSize(newsize, false)<br>
> for variable components and write the vector image, but after reading it<br>
> back, it has the same no. of components as initial vector length.<br>
><br>
> Regards,<br>
> Ravikiran<br>
<br>
</div>Ah, I see what you're saying. As far as I know that is not possible -<br>
I'll let the experts take it from here if it is.<br>
<div><div></div><div class="h5"><br>
David<br>
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