Gimp Cineon File Plugin

Download the Cineon image file plugin for Gimp.

This plug-in provides file load and save for Cineon and DPX image files, including conversion from 10 bit log to 8 bit, with black and white point setting and gamma correction. It currently should read and write mono and rgb 10 bit files. It was written on an Intel (little-endian) machine, but I have been told that it works on SGI MIPS (big-endian) boxen. You'll probably have to fiddle with the Makefile on non Intel/Linux platforms - just compile everything (except cineonTest.c) into an executable called cineon and copy it into your Gimp plugin directory. Please email me at hodsond at ozemail dot com dot au if you have a Cineon file which it cannot handle, and I'll see about writing the additional code. (CDs make excellent bribes - contact me for a list.)
Update: this version should be able to read and write DPX format files. I'd appreciate any feedback on this, as I'm working from the spec., with only one mono test file.

Important

This plugin has not been extensively tested. If you're planning to use it in a production environment, TRY IT FIRST with the files you'll be using. I will not be held responsible, and so forth ... but if it doesn't work, please let me know, because I will want to fix it.

Technical Notes

For normal, interactive use, this plugin allows you to load and save Cineon files, prompting for gamma and black and white points. Used non-interactively, there are eight functions:

• file_cineon_load loads a Cineon file, using the standard three-parameter load interface, and using conversion parameter values set with the file_cineon_load_setargs function.
• file_cineon_load_setargs sets the gamma, black point, and white point for subsequent file_cineon_load calls.
• file_cineon_load_withargs allows you to specify the conversion parameter values in the call.
• file_cineon_save saves a Cineon file.

Coming soon: the ability to remember header information when loading, and put it into the file when saving.