Re: basiccolor INPUT
Re: basiccolor INPUT
- Subject: Re: basiccolor INPUT
- From: José Ángel Bueno García <email@hidden>
- Date: Sun, 06 Nov 2011 16:39:18 +0000
Dear IIiah:
>From your source. "A gamut is defined as the range of colors that a
given imaging device can display." By imaging device I understand
capture device, display device, print device, and you can talk about
RGB spaces gamut and scene gamut too.
The rest of the text in your reference have some... points I don't
agree, but I'm a simple photographer, not a scientistic, but the
author put part of the issue on the encoding of the camera signals.
"As long as a camera has three or more sensors that span the visual
spectrum, then it will respond all the same stimuli as our visual
system."
For what I know, and maybe there is a little language problem here,
DSRL cameras are not spectral devices.
"Since there is no such thing as a gamut for an input device, then
there is no way to compute it or calculate a figure of merit."
Maybe Imatest?
Salud
Jose Bueno
El día 6 de noviembre de 2011 15:29, Iliah Borg <email@hidden> escribió:
> Dear Jose,
>
>> Since ColorCheckers are not standards and manufactures are not forced
>> to show color gamut tests, it is not extrange that a well captured SG
>> allows to measure the gamut limit of an input device and find
>> undesirable dE.
>
> I think we have a little language problem here. To quote, "there is no such thing as a camera, or scanner, gamut"
>
> http://www.cis.rit.edu/research/mcsl2/outreach/faq.php?catnum=3#255
>
> --
> Iliah Borg
> email@hidden
>
>
>
>
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