Outline marks after resizing (scale)

[Ofnuts]

(04-13-2022, 03:30 PM)tmanni Wrote: This happens because you have partially selected pixels at the border of the subject when you do alpha to selection.
So when you transform the content of the layer, these pixels are "partially" transformed.
To avoid this, several ways:
- do not use any selection and scale the layer directly.
- make your selection where pixels are full transparent (away from the subject borders)

Seconded. As a rule, never use alpha-to-selection to act (paint, transform, etc...) on the same layer, because it partially selects the edge pixels, so you will get a partial action on these. Using alpha-to-selection on a layer to do something on another layer (fill, delete, etc...) is on the other hand often a good solution.