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Mug sublimation images.
#18
(01-03-2018, 08:33 PM)Pal1 Wrote: Hi folks,

I've been painting artistic pictures. I've scanned them into my computer. I'm using gimp to resize then print. The printed picture colours are off. Would I be able to convert from RGB to CMYK in gimp. If so, could you help me please. 

Converting to CMYK will not fix the colours. Might even make them worse.

This is a quote from a conversion service
Some RGB colors that you can see on your monitor (in particular, blue, green and all bright vibrant colors) cannot be printed and/or replicated with standard CMYK inks. Keep in mind that, when creating a file for print, you should always make the original file in CMYK color mode before starting to work on it."...unquote...

Converting to CMYK these are some (free) options

There is an old plugin for Gimp that produces a CMYK image as a final operation. Gimp is not a CMYK editor. As far as I know it still works in latest Gimp 2.8.x (but not Gimp 2.9)

This demo I made some time ago http://www.youtube.com/watch?v=2rby7r771D4&hd=1 (5 minutes) gives some information on use.

The plugin requires an old file to work with Gimp 2.8 The needed files are bundled here: http://www.mediafire.com/file/azx5y5uyd7...tility.zip (5MB)

There are of course other ways. 
On line using http://www.rgb2cmyk.org depending on file size
The drawing application Krita works in both RGB and CMYK and can convert between colour spaces.
Command line ImageMagick will convert RGB to CMYK in several formats.

In the event you need a CMYK PDF
Using the DTP application Scribus, this is a demo for a question posted on this forum https://youtu.be/_yutJ51qMJw
On line http://www.pdf2cmyk.com
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Messages In This Thread
Mug sublimation images. - by Pal1 - 12-02-2017, 05:24 PM
RE: Mug sublimation images. - by Blighty - 12-02-2017, 06:22 PM
RE: Mug sublimation images. - by rich2005 - 12-02-2017, 06:28 PM
RE: Mug sublimation images. - by Pal1 - 12-02-2017, 07:14 PM
RE: Mug sublimation images. - by Pal1 - 12-03-2017, 03:23 PM
RE: Mug sublimation images. - by rich2005 - 12-03-2017, 05:51 PM
RE: Mug sublimation images. - by Pal1 - 12-04-2017, 06:27 PM
RE: Mug sublimation images. - by Espermaschine - 12-04-2017, 09:06 PM
RE: Mug sublimation images. - by Pal1 - 12-10-2017, 03:50 PM
RE: Mug sublimation images. - by Blighty - 12-10-2017, 03:58 PM
RE: Mug sublimation images. - by Pal1 - 12-10-2017, 05:26 PM
RE: Mug sublimation images. - by Blighty - 12-10-2017, 08:01 PM
RE: Mug sublimation images. - by Pal1 - 12-10-2017, 10:32 PM
RE: Mug sublimation images. - by Blighty - 12-11-2017, 05:53 AM
RE: Mug sublimation images. - by rich2005 - 12-11-2017, 09:11 AM
RE: Mug sublimation images. - by Pal1 - 12-13-2017, 06:56 PM
RE: Mug sublimation images. - by Pal1 - 01-03-2018, 08:33 PM
RE: Mug sublimation images. - by rich2005 - 01-04-2018, 09:26 AM
RE: Mug sublimation images. - by Espermaschine - 01-04-2018, 09:29 AM
RE: Mug sublimation images. - by Pal1 - 01-07-2018, 07:18 PM

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