[Insight-developers] Region bug in PNGImageIO

[Miller, James V (Research)]

So how do you determine what the image dimensions to write are
if you are not looking at the m_IORegion?  

Are you just supporting "overwriting" and existing image and getting
the dimensions from the previously stored image?

Jim



> -----Original Message-----
> From: Kent Williams [mailto:kent@mail.psychiatry.uiowa.edu]
> Sent: Tuesday, April 01, 2003 11:22 AM
> To: Insight Developers List
> Subject: Re: [Insight-developers] Region bug in PNGImageIO
> 
> 
> So, looking at the code in ImageIO, I have a question:
> 
> Most of the Iowa ImageIO classes are output-only.  AnalyzeIO, 
> however supports 
> writing.  The Write method just writes the raw image data to 
> the output file, 
> based on the stored image dimensions.  The member m_IORegion 
> isn't actually
> referenced in any of the ImageIO classes when determining 
> what data to write.
> 
> Am I missing something here?  Are the ImageIO classes supposed to use 
> m_IORegion to write only a subset of the raw data buffer 
> passed into the 
> Write method?  Or is the subregion of the input image to write being 
> generated elsewhere in the code?
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