Re: image appears to darken when converting RGB->CMYK in Photoshop
Re: image appears to darken when converting RGB->CMYK in Photoshop
- Subject: Re: image appears to darken when converting RGB->CMYK in Photoshop
- From: Roger Breton <email@hidden>
- Date: Sat, 22 Dec 2007 14:59:27 -0500
> I've tried both sRGB and Adobe RGB 1998 as source, and SWOP v2 and a custom
> profile I built with PMP 5 as destination.
>
> I tried the same test with CS2, on a different machine, and got the same
> results, so I don't think it's related to my monitor profile.
Care to send a sample test file my way?
> Using BPC for the conversion yields an image that on screen matches the
> original more closely in terms of darkness than not using BPC, which runs
> contrary to my expectations and understanding of what BPC does and how Rel Col
> works.
Doesn't that depend how contrasty is your RGB images to begin with? If the
image lacks deep shadows, you know that converting with or without BPC
turned on should not make a huge difference.
> Maybe there's some aspect to Rel Col or BPC I don't understand, or maybe I'm
> just going crazy ;)
If you keep with us we'll try to save you from ending in a mental
institution ;-) But I admit, color is not always trivial.
Roger Breton
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