Thanks Mark, Godfrey I understood about colour space and RAW files but I do switch to jpg quite a bit (shock, horror!!) and wondered why the colour space info wasn't embedded in them.
Cheers Brian ++++++++++++++++++++++++++++++++++ Brian Walters Western Sydney Australia http://members.westnet.com.au/brianwal/SL/ On Sat, 5 Apr 2008 15:34:24 -0700, "Godfrey DiGiorgi" <[EMAIL PROTECTED]> said: > On Apr 5, 2008, at 3:26 PM, Mark Roberts wrote: > >> > >> That's interesting. Is there a reason why cameras don't embed a > >> colour > >> space? Originally, I had assumed that if you selected Abobe RGB (for > >> example) as the in-camera colour space that the camera would embed > >> it in > >> the image. I can't think of a reason why this doesn't happen, but > >> I may > >> be showing my ignorance here (again...) > > > > Because Raw files aren't *in* sRGB or Adobe RGB colorspace, they're in > > the hardware-defined colorspace of the camera's sensor, which is much > > broader than either Adobe or sRGB. > > That's part of the answer, but the question as to why cameras don't > embed an ICC into in-camera rendered JPEG files is probably more to > do with a legacy of limited available computing resources and "now > wouldn't that be a good idea!" than anything else. > > The practice of tagging files with embedded ICC profiles as a norm is > only a recent development in digital imaging as popularity and use of > digital images becomes more widespread. There is still only one > browser (Apple's Safari) in full production release that honors ICC > profiles, for instance. Others are working on it but this portion of > digital image management with concerns for the fidelity of rendering > is still in its infancy. > > Godfrey > > -- -- -- http://www.fastmail.fm - Faster than the air-speed velocity of an unladen european swallow -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
