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Re: image appears to darken when converting RGB->CMYK in Photoshop
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Re: image appears to darken when converting RGB->CMYK in Photoshop


  • Subject: Re: image appears to darken when converting RGB->CMYK in Photoshop
  • From: Marco Ugolini <email@hidden>
  • Date: Fri, 21 Dec 2007 09:16:56 -0800 (GMT-08:00)

Matt Larmour wrote:

> I am puzzled by a strange phenomenon in Photoshop.
>
> I take an RGB image, and convert to a CMYK output profile, using Rel Col
> intent *without* black point compensation.
>
> The image, on screen, appears to darken substantially. Most of the image is
> in-gamut for the destination profile.

Matt,

Sorry if you already mentioned that (I confess that I've not followed this thread closely) -- but what target profile is this? I'm asking because some custom output profiles are poorly built, and do a substandard job of remapping values from source to target.

With that kind of profile there is not much to be done, other than perhaps to re-generate it using a professional profiling software package.

Marco Ugolini
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