GIMP Adaptive Contrast Enhancement

This is the development site for the GIMP plug-in version of Alex Stark's Adaptive Contrast Enhancement.

Things to look at here:

Current project status:

Version 0.6.3 was released on Wednesday, August 30th, 2000. This is just another development-libgimp-compatibility-thing. There is more interesting work going on for the upcoming 0.7, but it's not quite ready yet.

Version 0.6.2 was released on Sunday, July 9th, 2000. The main reason for this release is to get it to compile with libgimp 1.1.24 (they changed a function name on me).

Version 0.6.1 was released on Sunday, June 18th, 2000. This is GIMP-ACE's first real stable release. It's got a preview window, and on-line help, it doesn't spew junk all over the console, and it is, of course, BugFree. Enjoy!

Version 0.5.1 was released on April 24th, 2000, which includes a functioning PDB interface so the plug-in may be used non-interactively (e.g. called from a script in script-fu, gimp-perl, or py-gimp). If you create a script which uses this plug-in, please let me know, mostly so I can have a script to test the plug-in with when I think I might have broken non-interactive mode.

This project is on the back burner for me, and Alex has largely retired from it. We each look at it from time to time, but progress seems to move in short bursts spaced far apart. If you send us large sums of money, patches, or just write inspirational songs or movies for us, we'll probably spend more time on it. ;)

The problem with stretching the contrast of color images is sometimes colors result which your monitor cannot display. Alex and I are playing with different methods of coping... The plug-in now gives you a choice. Other brilliant ideas are welcome.

I have attempted to provide internationalization support for the plug-in. There's not a whole lot to translate so far, but if you are a polyglot, please feel free to submit translations.


Check the "ace" module on the download page. Files with names ending in .sign are cryptographic OpenPGP signatures (generated by GnuPG) verifying the integrity of the archives.

In addition, it is said that there is a Win32 binary available (courtesy of Holger Isenberg), but I haven't used it myself.

To do:

Questions, comments, patches? Write to Or catch Acapnotic on #gimp.

[ GIMP homepage | Plug-ins at SourceForge | Plug-in registry ]

The image at the top of this page (talmadge-ex.png) is derived from a photo by Zach Beane. Half of it has been processed with Adaptive Contrast Enhancement, detail size 16 and colour method "limit".

Last modified: 2001/07/29 18:19:30