[Insight-users] Re: Problem with lossless JPEG compression in GDCMImageIO

[Mathieu Malaterre]

On 9/25/07, Steve M. Robbins <steve at sumost.ca> wrote:
> On Mon, Sep 24, 2007 at 11:50:05PM +0200, Pechin Lo wrote:
> > After some tweaking around, I found out that JPEG compression works provided
> > that the minimum difference between two pixels is 2.
> > For example, if I have an image that only consists of n and n+1, the saved
> > image will only contains the value n.
> > However, if the image consists of value n and n+2, then the saved image will
> > contains both n and n+2.
> > In other words, the image will stores fine if I multiply it by a factor of
> > 2.
> >
> > Can someone please tell me why is this happening?
>
> I'm not familiar with the code in question, but is it possible
> that you're using a lossy JPEG compression?

Hi all,


  Could you please let me know if you are using ITK 3.2 / ITK 3.4 or CVS ?

Thanks

-- 
Mathieu
Ps: 3.4 and CVS should *not* produce this weird behavior.