[Gimp-developer] How to compile a vala GIMP plugin on Windows pc?
Hi, I have downloaded GIMP 2.99.4 on my Windows 8 pc. I want to compile the goat-exercise vala plugin shipped with GIMP. Can anyone please tell me how can I compile a vala plugin on my pc? What other softwares AND/OR dependent-files do I need to download? What command and attributes do I need to pass to the vala compiler to get a working exe without any errors? Thanks. ___ gimp-developer-list mailing list List address:gimp-developer-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list List archives: https://mail.gnome.org/archives/gimp-developer-list
Re: [Gimp-developer] deriving transform by comparing image before/after edit
Thanks Alexandre! I figured I'd most likely be writing the code if the math is possible - it would start as a standalone batch prog that could be appified. But I'd need an obvious path to even start, since I'm more of a jack-of-all-trades programmer, e.g. not sure how close LUTs could come. I realized it would be capable of reverse engineering any global filters, so could irk anyone who makes money from them. Here's where I tried the question earlier: https://www.reddit.com/r/computervision/comments/kktdq4/derive_transformation_matrix_from_two_photos/ My current editing backlog is 150K photos. Bill On 12/27/20 4:06 AM, Alexandre Prokoudine via gimp-developer-list wrote: Hi Bill, I don't know of plugins that would calculate a matrix in GIMP. There's a plugin called GetCurves by Elsamuko [1] that calculates a rough approximation of a color transform between two layers and creates an RGB curves preset. Due to its nature, the plugin has obvious issues treating different hue ranges differently [2] but maybe it's a motivation for someone to come up with a better tool. Although I'd be damned if I knew how you would then apply a generated 3x3 matrix to a different image :) I recently looked at free/libre options to create 3D LUT files, and the existing options like Harlequin [3] are not very encouraging yet. [1] https://github.com/elsamuko/gimp-elsamuko/tree/master/plugins/elsamuko-get-curves [2] https://twitter.com/lgworld/status/1338597821881192448 [3] https://github.com/dunkyp/harlequin/ Alex On Sun, Dec 27, 2020 at 2:47 PM Bill Ross via gimp-developer-list wrote: Given a pair of before/after jpeg photos edited with global-effect commands (vs. operations on selected areas), is it possible to derive transformation matrix/matrices that reproduce the result from the original? Presumably by iterating over all the pixels in a 1:1 mapping. My hope is to train neural nets to predict the matrix operation(s) required. Example: http://phobrain.com/pr/home/gallery/pair_vert_manual_9_2845x2.jpg Thanks, Bill -- Phobrain.com ___ gimp-developer-list mailing list List address:gimp-developer-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list List archives: https://mail.gnome.org/archives/gimp-developer-list ___ gimp-developer-list mailing list List address:gimp-developer-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list List archives: https://mail.gnome.org/archives/gimp-developer-list -- Phobrain.com ___ gimp-developer-list mailing list List address:gimp-developer-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list List archives: https://mail.gnome.org/archives/gimp-developer-list
Re: [Gimp-developer] some functions missing from procedure browser
I tried my suggestion. It seems like Gimp.Drawable.apply_operation(node) is necessary but not exposed in libgimp. A pipe dream then. ___ gimp-developer-list mailing list List address:gimp-developer-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list List archives: https://mail.gnome.org/archives/gimp-developer-list
Re: [Gimp-developer] some functions missing from procedure browser
We don't need to enhance Script-Fu to be gegl aware. We just need a plugin that is gegl aware. Call the plugin "python-fu-do-gegl-op." Given a drawable, an operation name like "gegl:median-blur" and a list of arguments (usually all numeric) the plugin invokes the gegl operation on the drawable. Gegl is introspectable, it will tell you the types for parameters to any operation, and the plugin can check and convert arguments if needed, or substitute defaults. The plugin could be written in Python, which can introspect both Gimp and Gegl. When the plugin is introspecting the Gegl op, it is second-order introspecting. You can't write the plugin in ScriptFu because it doesn't support GObject Introspection. You could write the plugin in C, but easier in a higher language. A ScriptFu script calls the plugin in the PDB: (python-fu-do-gegl-op drawable "gegl:median-blur" ( 1, 2.0, ...)) All gegl ops SHOULD be in the PDB, but when they are not, you fall back to this plugin. ___ gimp-developer-list mailing list List address:gimp-developer-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list List archives: https://mail.gnome.org/archives/gimp-developer-list
Re: [Gimp-developer] deriving transform by comparing image before/after edit
Hi Bill, I don't know of plugins that would calculate a matrix in GIMP. There's a plugin called GetCurves by Elsamuko [1] that calculates a rough approximation of a color transform between two layers and creates an RGB curves preset. Due to its nature, the plugin has obvious issues treating different hue ranges differently [2] but maybe it's a motivation for someone to come up with a better tool. Although I'd be damned if I knew how you would then apply a generated 3x3 matrix to a different image :) I recently looked at free/libre options to create 3D LUT files, and the existing options like Harlequin [3] are not very encouraging yet. [1] https://github.com/elsamuko/gimp-elsamuko/tree/master/plugins/elsamuko-get-curves [2] https://twitter.com/lgworld/status/1338597821881192448 [3] https://github.com/dunkyp/harlequin/ Alex On Sun, Dec 27, 2020 at 2:47 PM Bill Ross via gimp-developer-list wrote: > > Given a pair of before/after jpeg photos edited with global-effect > commands (vs. operations on selected areas), is it possible to derive > transformation matrix/matrices that reproduce the result from the > original? Presumably by iterating over all the pixels in a 1:1 mapping. > > My hope is to train neural nets to predict the matrix operation(s) > required. Example: > > http://phobrain.com/pr/home/gallery/pair_vert_manual_9_2845x2.jpg > > Thanks, > > Bill > > > -- > Phobrain.com > ___ > gimp-developer-list mailing list > List address:gimp-developer-list@gnome.org > List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list > List archives: https://mail.gnome.org/archives/gimp-developer-list ___ gimp-developer-list mailing list List address:gimp-developer-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list List archives: https://mail.gnome.org/archives/gimp-developer-list
[Gimp-developer] deriving transform by comparing image before/after edit
Given a pair of before/after jpeg photos edited with global-effect commands (vs. operations on selected areas), is it possible to derive transformation matrix/matrices that reproduce the result from the original? Presumably by iterating over all the pixels in a 1:1 mapping. My hope is to train neural nets to predict the matrix operation(s) required. Example: http://phobrain.com/pr/home/gallery/pair_vert_manual_9_2845x2.jpg Thanks, Bill -- Phobrain.com ___ gimp-developer-list mailing list List address:gimp-developer-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list List archives: https://mail.gnome.org/archives/gimp-developer-list
[Gimp-developer] How to compile a vala plugin on Windows pc?
Hi, I have downloaded GIMP 2.99.4 on my Windows 8 pc. Can anyone please tell me how can I compile a vala plugin on my pc? What other softwares do I need to download? What command and attributes do I need to pass to the vala compiler to get a working exe without any errors? Thanks. ___ gimp-developer-list mailing list List address:gimp-developer-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list List archives: https://mail.gnome.org/archives/gimp-developer-list
