Re: Primer on photographic exposure, etc.
Re: Primer on photographic exposure, etc.
- Subject: Re: Primer on photographic exposure, etc.
- From: Ben Goren <email@hidden>
- Date: Wed, 15 May 2013 07:30:24 -0700
On May 15, 2013, at 6:59 AM, Jim Warthman <email@hidden> wrote:
>> Most of the big-name popular raw development engines don't support ICC input profiles, which makes them unusable for applications where colorimetric accuracy is required or desired.
>
> Pretty sure Aperture supports it:
Aperture has its own input color profiling model based on the DNG standard. It works well enough for its intended purposes, but colorimetric accuracy wasn't one of those intended purposes -- ``pleasing'' color was.
It might be mathematically possible to create a DNG profile that will do an equivalent transformation to what a corresponding ICC profile does (though I don't think so), but it's sure not possible to get anywhere even close in practice.
> http://wentbackward.zenfolio.com/colour-calibration.pdf
The techniques in that article all describe fiddling with adjustment sliders to simultaneously (effectively) refine the matrix and somewhat reverse various errors introduced by the development engine. It's a band-aid on a compound fracture.
b&
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