GNOME Bugzilla – Bug 129235
Reading Photoshop *.AMP curve settings file
Last modified: 2018-05-24 10:58:18 UTC
Hello Gentelman, Please insert load button in the Curves Dialog for reading Photoshop *.AMP curves setting file. The structure of *.AMP is very simple. It has 5 binary tables that have 256 entries that are 8-bit (byte). The first table 0000..00FFh is the RGB channel. The second table 0100..01FFh is the R channel. The third table 0200..02FFh is the G channel. The fourth table 0300..03FFh is the B channel. And, the fifth table 0400..04FFh is a "dummy" channel that has to be filled with codes running from 00h, 01h, 02h, ...FFh. Table position nn00h is the black end and table position nnFFh is the white end. Regards --Jack,
Hi Jack, Could you attach a couple of representative example files, and perhaps a link to a definition document? I for one don't have a copy of photoshop lying around. Thanks, Dave.
Dave, Photoshop SDK 5 weigh ca. 5MB. I'm afraid it's hard to find in this document a full description. Nevertheless you will cope with that because I did it :) AMP collection: http://tme.szczecin.pl/~jacek/download.html With kind regards --Jack,
*** Bug 108174 has been marked as a duplicate of this bug. ***
* The requested URL /~jacek/download.html was not found on this server. * Setting a few target milestones now that 2.2 is coming closer.
Here's another resource that I've been pointed to in a thread at the GUG forum: http://www.fine-view.com/jp/lab/doc/ps6ffspecsv2.pdf The poster in that thread claimed that the PS curves files would be have the .acv extension. The spec on the other hand talks about .crv for curves files on the Windows platform and 8bsc on Mac OS. Overall that's pretty confusing...
http://registry.gimp.org/node/27003 provides an ACV converter.
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