I’m using Gimp 2.10 to  colorize old photos. I have no problem with differents hues. My question is about true white. For example, I have a photo whith snow. On the original, the snow is greyish. If I select white from the palette and using a brush to color the snow, it remains grey. Is it possible to have true white?

Thank you

Apart from the dialog that you define in register() and the gimp.message command (which doesn't allow for any user input), I don't know if Gimp's api provides a way to pop a dialog to, say, ask for confirmation about something or provide other sliders, spinners, etc based on what you selected in the main plug'in's dialog.
Do we have to revert to other python libraries like zenity or GTK?

Playing with lines and save them as svg files and load it in gimp, that's what possible with a weird program tinkersynth. A hint : new possibilities if you unscrew the plate on the left upper side...
   
   

thanks for any help, I have been at this for days looking for an answer.

I cant close a path on Mac OS Gimp 2.10. COMMAND click just brings up the right click menu.  

How do you close a path so you can stroke it on Mac OS?

TIA

F

in the python-fu api, there is this "get-layer-by-tattoo" command.
I found no information on the internet about what that "tattoo" is.
Could anyone clarify?

PS: forgot to add this thread inside the "Scripting questions" subcategory. In don't know if I can move it there myself.

To make backgrounds one can use 'EscherSketch' to make paths and save them as . svg file to use it in gimp.
https://eschersket.ch
Do not make an complex design because the number of paths become very high. All one have to do after load the paths in gimp is make all the paths visible and then merge all the visible paths into one path. In gimp, one can use the cropping and slicing a path plugin made by Ottia Tuota to extract the part you need. Use this link for information about this plugin. 
https://www.gimp-forum.net/Thread-Croppi...ing-a-path
One can then stroke the path. I used a transparent layer to stroke the path on. Then I've made a copy from the stroked layer and blurred the first layer. A black background made the design complete. The stroked drawing here included is a cropped image.
   
   

Hello,
I'm beginner to the gimp and come from photoshop.

I'll would like to know how change the color of the alpha channel.

I"ll would like to paste a color into or paint on it.

How I'll could do it?

In photoshop it was simple I'll make an image in grey >ctrl C >ctrl v in alpha channel.

Ill would like to do the same but it seems impossible to edit the alpha!

I'll work mainly in video game and need to use Alpha channel.

In fact I'll don't care there is an alpha on alpha channel I'll just want to copy a grey image on it.

Thanks by advance for your help.

I am making fun with a best friend of mine

I have his picture. He isn't bald in the picture, but I want to make him bald, however, what is the general
step I need to do to make the pictures look, at least, not too bad?

First, I know I should select to remove his hair, but how to make the deleted area look similar to the background?

Second, how can I make his forehead a bit shiny? In the picture there isn't any shiny

My plugin performs a bunch of operations on dozens of large images which takes several minutes and only uses a single thread.

I'm wondering if there's a way to write code in the plug-in to allow for multithreading, e.g. by telling Gimp to open more instances of itself or any other way.

Is that possible?

Hi, today I used gimp for the first time in a while, and for some reason when I try to cut a part of a layer, instead of just making the part disappearing like it used to, it turns the part white.
Left is what I want to do, and what I was used to, right is what I'm getting.

Anyone knows why it does that and how to fix it ?