Comments on: Converting CMYK JPEGs to RGB

Question: Converting CMYK JPEGs to RGB

drill_here_fore_seismics — Wed, 15 Nov 2006 06:01:04 -0800

Recommended methods for converting CMYK JPEGs to RGB JPEGs, ideally batch conversion?

I have about a hundred JPEGs in CMYK, and I'm looking for a straightforward way to quickly convert them to RGB. I'm using Windows XP and don't have Photoshop. Is there a method or a tool (preferably Freeware) that can do this?

Failing that any advice on simple ways to convert CMYK to RGB, even one image at a time, would be much appreciated.

By: grouse

grouse — Wed, 15 Nov 2006 06:28:18 -0800

You can do it with ImageMagick.

By: Kadin2048

Kadin2048 — Wed, 15 Nov 2006 06:45:17 -0800

On a Mac, GraphicConverter will do this, I believe. It has some fairly powerful batch-conversion features, and will only set you back $30.

By: grouse

grouse — Wed, 15 Nov 2006 06:49:12 -0800

Of course, GraphicConverter doesn't run on Windows XP.

By: drill_here_fore_seismics

drill_here_fore_seismics — Wed, 15 Nov 2006 06:55:58 -0800

Grouse, thanks for suggesting ImageMagick, is there an idiot's guide anywhere? I'll use it if there's no other option, but as I've been sending the JPEGs out I was hoping theremight be a more simple solution, preferably with a GUI.

By: unclejeffy

unclejeffy — Wed, 15 Nov 2006 07:04:19 -0800

Find a friend with Photoshop. Seriously. With an Action, they can take care of this for you in about 5 minutes. I've got an action already set up for converting from CMYK to RGB (and the reverse) already. I'll bet any other serious Photoshop user will, too.

By: grouse

grouse — Wed, 15 Nov 2006 07:25:28 -0800

Google for [ImageMagick cmyk rgb] for examples.

By: Glum

Glum — Wed, 15 Nov 2006 11:17:07 -0800

More importantly, find a friend with Photoshop and get him to create an action which not only converts to RGB but which also resets the levels. A black CMYK image converted to RGB will come out grey. Yuck. The levels will need adjusting to make the constrast appealing.