Talk:Adobe RGB color space

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Link to AdobeRGB(1998) Spec[edit]

I added a direct link to the spec (PDF) to a new "References" paragraph. Glennrp 03:55, 13 August 2007 (UTC)

Color space recommendation[edit]

I've removed the following line:

"Critiques claim that most digital photographers are better off using standards sRGB[1]."

The quote is from Ken Rockwell, who is not a well respected source of photographic opinions, and certainly not an expert in color space (search his name in http://forums.dpreview.com).

A well respected color space expert like Bruce Fraser (http://www.amazon.com/exec/obidos/tg/detail/-/0321267222/qid=1116025391/sr=8-1/ref=pd_csp_1/102-4145187-1940162?v=glance&s=books&n=507846) will instead recommend that wide color spaces like Adobe RGB or even the wider ProPhoto RGB be used so to minimize any loss of color when editing and correcting an image. Conversion to sRGB should occur only at the last step, and only if the output is for a computer screen (web). For printing, other color spaces are preferable (Adobe RGB). This assumes of course that the original photos are shot in a wide gamut space like that available in RAW format, which is becoming the norm for serious amateurs and professionals. Bernardd 01:36, 14 April 2007 (UTC).

Well, there's a trade-off here. If we use only 8 bits of color information per channel (as in a jpeg), then a wider gamut means less distinctions between colors can be stored. --jacobolus (t) 21:06, 19 September 2007 (UTC)
"The quote is from Ken Rockwell, who is not a well respected source of photographic opinions, and certainly not an expert in color space"
He is a source of photographic opinions, though whether he is a well-respected source, I would have thought, is up to individual opinions. His claim to expertise in color spaces is that he designed the first dedicated color space conversion processor while working for TRW LSI, not to mention that he is a prolific photographer to whom color is the main focus of his work. I agree that his opinions about color spaces are not generally echoed by most others, but is this dissenting opinion not worthy of at least being noted? I find the arguments about him not being well respected to be subject to individual bias, and the argument that he is not an expert in color space misleading if not downright untrue; even if his claim about designing the first color space conversion chip is false, I would still describe him as a professional photographer to whom color is the main focus of his work. If nothing else his view on use of color spaces is likely to be relevant to any photographers wanting to obtain the same sort of results as him. That said, whether or not such information is relevant to an article on Adobe RGB is another question - it probably isn't. mmj (talk) 05:18, 7 January 2009 (UTC)

Reason for improvement[edit]

After reading this article I still don't understand *why* Adobe RGB is "improving upon the gamut of the sRGB color space": how does it achieve it? The article says that it uses a Gamma value of 2.2 throughout its range, which sounds like a simplification but cannot by itself explain to me why it encompasses more color range or anything. The sole reason I can understand this to happen right now is if the digital resolution is limited, e.g. to 8 bits per color channel; but the article doesn't mention the bit depth *at all*. So, either I'm missing something, or the article isn't complete. Pflanze2 (talk) 04:15, 28 June 2013 (UTC)