Skip to main content

Gimp and CMYK

Reading an post about CMYK support on Gimp is fascinating. For years, GIMP is my image editor of choice in completion of Krita for web publishing, photography and desktop publishing. The CMYK support debate shows how many designers forgot they mostly work screen in RGB and CMYK is mainly for printing. Because of the different process of ink, there is no guarantee the colours from CMYK will be the same on every printers.
Thankfully, majority of printing computer requires RGB file to avoid headache.

Comments

Osqui said…
What I don't understand why Gimp programmers doesn't want to include CMYK in Gimp. There have been a great debate through the years and they haven't changed their original rejection from then. I can't understand.
Click on the link I posted on the blog. According to one of Gimp developers, CMYK debate is all about setup. The GEGL will recognize the CMYK file using a different method like node to preserve in non-destructive way. We will have to wait for 3.0 version verify the claim.
Osqui said…
Link is written in 2009...

Here (http://wiki.gimp.org/index.php/Roadmap) you can read that CMYK support is "low priority"
Thank you for the information. From the mail list published on December 2011: http://mail.gnome.org/archives/gegl-developer-list/2011-December/msg00000.html

Popular posts from this blog

Sun's promise to open source Java vs GCJ

According to this Press Release via OS News , it appears Sun Microsystems allow the redistribution of their Java development for Linux distributions under a new license called Operation System Distributor's License for Java or in short "Distro License for Java". Currently, only binaries are licensed as the source code is not available for the public although SUN promise to open source Java . I wonder if that announcement will affect the whole GCJ on which Fedora Project is focusing. Pour les francophones: Selon cette note de presse via OS News, Sun Microsystems permet la redistribution des binaires Java pour les distribution de Linux sous la nouvelle license nomm&ecaute;e License des distros pour Java . Je me demande si cette annonce affectera le développement de GCJ.

Using AMD RX Vega driver OpenCL on Fedora 29

The Raven Ridge APU is very capable processor to handle OpenCL inside some applications like Blender, Darktable and Gimp. Unfortunately, the current implementation from Mesa, clover, stuck to 1.3, is not supported. AMD released their driver 18.40 with OpenCL2.0+ targeting only Red Hat Enterprise Linux/Cent OS 6.10 and 7.5 in addition of Ubuntu LTS. The good new is the former rpm format can be used on Fedora. The graphical part of Raven Ridge is Vega 8, basically a cut-down of Vega56 or Vega64 meaning choosing either driver for RX Vega . The instruction is provided for extracting the rpm files but here is  some requirements for OpenCL: kernel-devel (provided by Fedora repository) amdgpu-dkms dkms libopencl-amdgpu-pro opencl-amdgpu-pro-icd Once done, applications needing OpenCL will automatically detect the driver located on /opt/amdgpu/lib64 . Blender will list as unknown AMD GPU and Darktable will enable it. OpenCL from official AMD driver enabled on Darktable Ra

Detailing the installation of AMD OpenCL rpm for Fedora

Revisiting the previous blog and freshly reinstalling Fedora Design Suite due to a busted boot, I look at the official guideline from AMD Driver for Red Hat Enterprise Linux 7.2 and write a way to improve the process of installing on Fedora 29 in this example. Extracting the tarball contains the following: amdgpu-install amdgpu-pro-install symlink to amdgpu doc folder repodata folder RPMS folder containing rpm package Executing the command ./amdgpu-install -opencl=pal --headless sadly failed on Fedora on that line: ./amdgpu-install -y --opencl=pal --headless Last metadata expiration check: 0:30:51 ago on Mon 19 Nov 2018 07:13:43 PM PST. No match for argument: amdgpu Upon closer look, the script failed to created a temporary repository on /var/opt/amdgpu-pro-local probably explaining why amdgpu metapackage name failed to display. Someone should investigate and provide a fix. At least, we find out Fedora support is available but unofficial. Due to its design, Gnome