CMYKTool
CMYKTool is a new utility intended to build on the functionality of my old CMYK separation plugin for the GIMP. The key features I needed and couldn't find elsewhere in a convenient single package are as follows:
- Convert images between ICC profiles.
- Support RGB and CMYK images as both input and output.
- When converting from RGB to CMYK, preserve pure black, preserve pure grey, or attempt to underfill black to give a fake "overprint" effect.
- Images and their individual channels can be inspected
- As well as "inspect" mode, a soft proof mode to show how an image would look when printed.
- Easy comparison of multiple images. This means it must be possible to flip between them with minimal screen redrawing, and zoom-and-pan settings must be synchronized between multiple images.
- Save JPEG, TIFF (8- and 16-bit) with or without embedded profiles.
In the fullness of time I also intend to add the functionality of ImgTarget to CMYKTool (or merge the two projects) since the side-by-side comparison of images produced with different settings would be particularly useful when experimenting with devicelinks.
CMYKTool Tutorial Screencast
2010-07-25
Since CMYKTool's purpose and operation are a bit arcane, I figured it was time to make a tutorial video, outlining its basic operation. This video covers most features, but not the new DeviceLink functionality - that deserves a video to itself, which I hope I'll find time to make in due course. I hope you find it useful!
Read more...
CMYKTool 0.1.4 Released
2010-07-24
I'm pleased to announce a new release of CMYKTool, featuring a few bug fixes, better international support on Windows, and - the big news for this release - support for black generation curves, using ArgyllCMS's DeviceLink capability.
Source code - .tar.gz
Windows Binary - .zip
Please note: the Windows build requires an existing GTK+ installation - the easiest way to get that is to install GIMP.
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CMYKTool 0.1.2 Released
2010-03-07
Since my coding time is currently very limited, here's a stopgap release with a few improvements until I can put more time in!
Source code - .tar.gz
Windows Binary - .zip
Please note: the Windows build requires an existing GTK+ installation - the easiest way to get that is to install GIMP.
Read more...
CMYKTool 0.1.4a - a hasty bug-fix release!
2010-07-25
A major bug crept into yesteday's CMYKTool release, which prevented custom-shaped black generation curves from being passed correctly to ArgyllCMS's collink utility. The preset curve shapes worked OK, it was just custom curves - and this bug is now fixed. The Win32 build was unaffected, so I've only re-rolled the source tarball here. An updated package is currently building in my PPA.
Source code - .tar.gz
CMYKTool 0.1.3 Released
2010-05-29
After way too long a break, I've finally made new release of CMYKTool. I've not been able to put nearly as much time into this as I would have liked, so there aren't many changes this time around.
(Update 2010-06-02 - the tarball has been respun to include an updated Russian translation - thanks, as always, to Alexandre Prokoudine for this.)
Source code - .tar.gz
Windows Binary - .zip
Please note: the Windows build requires an existing GTK+ installation - the easiest way to get that is to install GIMP.
Read more...
CMYKTool 0.1.1 Released
2010-02-02
This is the second public release of CMYKTool, which is still very much experimental software.
Source code - .tar.gz
Windows Binary - .zip
Please note: the Windows build requires an existing GTK+ installation - the easiest way to get that is to install GIMP.
