[Lcms-user] Check if ICC is sRGB-like

[Kornel <mai...@po...>]

What's the best way to check whether an ICC profile is "similar" to sRGB? (e.g. color profiles of monitors trying to be sRGB, rather than the canonical sRGB color space definition).

I'd like to convert a bunch of JPEG files with various embedded profiles to sRGB. The problem is that decoding+conversion+encoding is a lossy process, so I'd like to avoid it unless absolutely necessary. If the source image has an embedded color profile that is sRGB-ish, then stripping/replacing the profile without re-encoding may give higher quality, than a very slight colorspace conversion with re-encoding.

I'd rather not rely on metadata like descriptions of known ICC files, but identify arbitrary ICC profiles by properties of their color space.
 
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Kind regards, Kornel