Background - Foreground - how to work on the separation?

[saint_m]

good day dear friends - good day dear gimp-experts,


hello everyone:  i am currently workin on a solution - "saving the foreground - gettin rid of the background: which approach" - you would choose here!?

i am currently working on a litte image where i want to set the lines in the foreground - free from the background.
I have to solve the task - with GIMP: Well i think that this must be possible - i could imagine that we can do this with the help and the work of some "layers" - see the image-
[url=https://preview.redd.it/saving-the-foreground-gettin-rid-of-the-background-which-v0-rnqzsjwz8zrg1.png?width=103&format=png&auto=webp&s=f3c5e2d92ec8d92e19f291cbe79923ee2d0fe400][/url]

   


hope i was able to spell out what is wanted: 

how to make clear / sure that i can save the lines (and dots) - and re-color the background - is this possible -how would you do this
which approach - you would choose here!? 

look forward to hear from you

greetings

[rich2005]

There are a few ways for this. One way to try is:

(1) Colors -> Auto -> White Balance ( the connecting lines are very faint and probably will not show on a light background)
(2) Bucket Fill using Affected Area = Fill whole selection Fill Type = FG color Mode = Color erase.
(3) Set the Background (BG) color as required.
(4) Image -> Flatten Image (this replaces any transparency with the BG color)

A 30 second animation of that: https://sendvid.com/msgycwvm

[GarzaW]

You could also try using the Select by Color or Fuzzy Select tool to quickly grab the background and delete it, leaving just the line work. It is usually the fastest way to get a clean cutout without doing everything manually.