Creating an "opposite" image

[Krikor]

(03-30-2022, 04:20 PM)PixLab Wrote:

(03-30-2022, 03:55 PM)Krikor Wrote: In addition to the lack of uniformity in the background transparency, the contour always presented a pixelation not shown in the other results exposed here on the forum.

So I changed the image before testing the steps.

Click on the OP's image ➤ a new window/tab opens, right click ➤ copy image, then  in GIMP 'File ➤ Create ➤ From clipboard` you got the original from the OP which has no defect
or here directly https://www.gimp-forum.net/attachment.php?aid=7673  

Awesome PixLab this tip!

I suffered a lot with the image I had downloaded.

Now following your tip, I got a clean image ready for editing!

Thank you very much!

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Great to see and try out all the suggestions. I always learn a lot this way.

I confess that following in Denzjos' footsteps was complicated and somewhat laborious. But the result is very good.

The settings for Fuzzy Select in Tmanni's tip are something I'll need some time to understand how they really work in this edition.
Never before have I used "Diagonal neighbors checked" or "Select By : Alpha"

Thanks to everyone for the contributions!