Re: [Gimp-developer] How to compile a vala GIMP plugin on Windows pc?
Curses, foiled again! :-) Glad it's gotten easier, I keep thinking MS might go with the nix in the end, once someone looks at the amount of internal effort it takes given the nix are so mature, respected, and supported. Bill On 1/3/21 11:43 PM, Liam R E Quin wrote: On Sun, 2021-01-03 at 22:35 -0800, Pen Guin via gimp-developer-list wrote: Thanks everyone, for your valuable input. STATUS UPDATE: * I have installed msys2 on my windows 8 pc. haha thank you for proving us wrong! ;:-) that's awesome. (and i'm not being sarcastic) -- 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] [Gimp-user] How to compile a vala GIMP plugin on Windows pc?
To be clear, I don't speak for gimp, haven't worked on it even, but did look into Windows programming for a possible job during a dry spell, and I'd rather code in COBOL with vi. So, sorry the intent was wasted. :-)BillAI:http://phobrain.com/pr/home/view.html Original message From: Christopher Curtis via gimp-developer-list Date: 1/3/21 6:48 PM (GMT-08:00) To: gimp-developer Subject: Re: [Gimp-developer] [Gimp-user] How to compile a vala GIMP plugin on Windows pc? These are incredibly unhelpful responses.It is fine to evangelize if you are also providing useful information, butone cannot simultaneously bemoan the lack of developers for a particularplatform and also chastise those developing on that platform.To the original questioner, I would suggest following Jernej's advice. I,unfortunately, don't regularly use Windows or Vala, but there are claims ofVala support in 2.99.4 so someone must have had some success. I do have aWindows 10 machine that I installed Debian on using WSL2 (I may have eveninstalled it from the Microsoft Store) - that may be an easier solutionthan installing MSys2, but I cannot say authoritatively. If nothing else,it may be a better first step to ensure you can build the plugin onGIMP's primary development environment, then try it with MSys2.If you can document your Windows Vala Plugin build process in the Wiki thatwould be even better. This may be useful to get started:https://wiki.gimp.org/wiki/Hacking:Building/WindowsIdeally, GIMP would provide a Windows SDK that plugins could be builtagainst, but I don't know if anyone has considered that. It's quitepossible that with GObject introspection simply installing the GIMPexecutable provides that function and you only need a Vala compiler tocompile the Vala code (I don't know how linking works in that case, but itsounds nice).ChrisOn Sun, Jan 3, 2021 at 5:52 PM Bill Ross via gimp-developer-list wrote:> If you can find any online docs on Windows programming, that should> finish convincing you.>> Bill>> On 1/3/21 12:36 PM, Ruben Safir wrote:> > Save yourself a life time of trouble and switch ovr the a GNU system now> --> 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 listList address: gimp-developer-list@gnome.orgList membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-listList 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
Re: [Gimp-developer] [Gimp-user] How to compile a vala GIMP plugin on Windows pc?
If you can find any online docs on Windows programming, that should finish convincing you. Bill On 1/3/21 12:36 PM, Ruben Safir wrote: Save yourself a life time of trouble and switch ovr the a GNU system now -- 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] deriving transform by comparing image before/after edit
Hi Adlbert, That might add all kinds of great functionality to gimp, enabling it could be optional, although wouldn't handle the old edits I want to train nets on so I can just stop editing 'now'. :-) In planning it, I'd think of what core functions are required for basic touchup, so a network could be trained to make optimal use of them once they could be worked out mathematically from all one's old edits (worst-case, autoadjust 20? numerical sliders til you get the least net 'distance' from the edited pic, likely faster with some optimization library, then accept or reject each best-effort by visual inspection before it is used for training). It'd be like having your own custom version of equalization but I expect it'd be good and final about 80-90% of the time for people who spend less than a few minutes editing each photo. I wonder if a joint effort with ImageMagick or other groups might be worthwhile, given the possibility for shell-scripting as well as within workbenches. I'm being gradually educated / figuring out how NNs might be applied in further discussion here: https://www.reddit.com/r/computervision/comments/kktdq4/derive_transformation_matrix_from_two_photos/ Bill https://twitter.com/photoriot/status/1344064933248421889?s=20 On 12/29/20 4:46 PM, Adalbert Hanßen via gimp-developer-list wrote: Hello Bill, your problem could be solved much easier and doing that would open great new things to Gimp: Let us for short think of all of Gimp's functions (I just cal them functi, but their names of coursee would be unique within Gimp), which are accessible from any menu function, being split into a parameterizing function parametrize_functi and an actual operating one operate_functi, i.e. * parametrize_functi just asks for all parameters (if there are any) but does not process them * imagine thatparametrize_functi createsa log entry "functi, pi1, , pin"with all necessary parameters which it has obtained when the ok button is pressed (if there is one), * those log entries would be recorded. * when the ok button is pressed,operate_functi functions would be called through one central placewith those recorded parameters. Thefuncti areidentified by the firstentry in each recorded parameter set. Then it would become very easy to automatically re-run such recorded steps . Your question “How exactly did I achieve this result?” would become superfluous. Would that not be great? In Gimp, all theses log entries should be recorded strictly inthe sequence in which they are done. Of course, the number of the tab to which they go (and the plane in it and son on) also have to be recorded. When the clipboard is used, that has to be recorded too and if the clipboard-content doesnot originate from this particular Gimp session, a copy of it has to be stored to make everything reconstructible. (IfGimp does not get notified when the system clipboard is changed outside of Gimp, Gimp has to maintain ashadow copy of a clipboard with an image and it has to compare the current system clipboard containing an image to its own shadow copy, in order to storea reconstruction copy of the system clipboard image, if any operation happens, where the system clipboard from outside of Gimpis actually used in Gimp). With such log-keeping, even all “destructive” functions could be undone in Gimp without much storage requirements: In the worst case, the sequence of processing steps would have to be redone from the very beginning. One could speed that up by storingintermediate result toa file, until the session ends. When a picture is stored or exported, some cleanup has to be done to eliminate all logged operations and possibly also all stored system clipboards which entered the flow of operations but do not not influence any non-stored result any more. Idemat the end of a session or closing a tab, Of course, loading an image has also a parametrize function: The one which lets you select the image to be loaded and the tab to which it goes. Of course, switching to anothertab also has to be recorded. When you copy something from one tab and paste it e.g. to a plane in another tab, the associated processing logs become “mangled” because the pasted-to history now also depends on the history of the pasted-from tab and its associated image. The number of parameters of the functi differ from one function to anotherone. There could be none, like in transform to grayscale. There could be only a few, like in setting a threshold transforming to B/W or when doing some brightness or colour manipulations. There would also onlybe a few like when pasting something from the clipboard to a specified place (i.e. the coordinates of the placement and possibly an orientation angle). There could be functions which have many parameters, like cutting out some fancy shape. The whole log filecould be a plain ASCII file! It would besomething like tab1, openFile, full_path_to_it tab1, rotateImage, centerx, centery, degrees
Re: [Gimp-developer] deriving transform by comparing image before/after edit
tion with only positive values). Of course it would be great, if the convolution matrix could be made larger than 5*5 for such folding matrices to remove background. For removing stains and shadows, it would also be beneficial if one could apply some gray level transformation to each pixel of the image (e.g. given by a polynominal) before the pixel value is mutiplied with the matrix entry in the convolution operation and to apply some other gray level transformation (one which mostly anihilates the first one) on the way back before the convolution image is shown. In addition I would whish me something where I could apply two convolution matrices to an image: the first one acting like now, but the second one just to compute some "comparison value" which is used to set the pixel to "black" if the outcome of the first mentioned convolution is greater or equal to the outcome of the second convolution. Think of the second convolution going to some "alpha channel". But it would become necessary to be able to store and reload all those matrices and the coefficients of the gray level transformations and the coefficients of the comparison operation with that second convolution 9n norder to be usefull. Great things could be done with Gimp if there would be some easy to perate playground for such image manipulations! Try my background removal operation with the appended example file, which is just a small part from an image taken from a newspaper. Play with it with different values of the centre weight. Of course, it would be best to first reduce the immage to a grayvalue-only image, i.e. without colours. Adalbert Am 27.12.20 um 07:52 schrieb Bill Ross via gimp-developer-list: 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
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
[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
