[OpenICC] Oyranos APIs update

[Glenn Randers-Pehrson <glennrp>]

Chris Murphy wrote:
> 
> On Sep 28, 2005, at 11:09 AM, Lars Borg wrote:
> 
> > That's not doable for many file formats.
> > For example, Cineon and DPX files have no standard meands for
> > embedding ICC profiles (as far as we know) and they are "never" in
> > sRGB.
> 
> For TIFF, JPEG, GIF, and perhaps a certain amount of PDF, sRGB would
> be a logical assumption.

It's probably a good assumption about JPEG although it appears to be
contrary to the JFIF spec:

JPEG File Interchange Format, Version 1.02 Standard color space The
color space to be used is YCbCr as defined by CCIR 601 (256 levels). The
RGB components calculated by linear conversion from YCbCr shall _not_ be
gamma corrected (gamma = 1.0). If only one component is used, that
component shall be Y. (http://www.w3.org/Graphics/JPEG)

Glenn