[Discuss] Peculiar JPEG Image behaviour -- Off Topic?

Murray Strome wmstrome at shaw.ca
Thu May 24 09:57:08 PDT 2007


Hi Alan,

Thanks. I am going to have her send the photos using the Mac iPhoto 
system with the "Large" option selected to see what happens.  She had 
sent them just as they were saved into her Mac from her digital camera.  
In the EXIF data under comments it has "AppleMark", whatever that might 
mean.

Murray

Alan W. Irwin wrote:
> Hi Murray:
>
> http://developer.gimp.org/standards.html says the GIMP uses the JPEG
> standard at http://www.w3.org/Graphics/JPEG/ and there doesn't appear 
> to be
> any recent version changes there (page last updated in 2003).  
> However, that
> page does indicate there are lots of non-standard extensions to the JPEG
> standard so you may be a victim of one of those.
>
> You might want to ask the person creating these "JPEG" images whether 
> their
> application has an option to turn off non-standard extensions.
>
> Alan
>



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