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How improve the border of a small image after rotation ?

Jul 13, 2012, 17:10
Post: #1
How improve the border of a small image after rotation ?
Hello,

I would like to know which tools to improve the border of a small image after rotation. Something like sharpening.

The picture is around 25px wide. When magnified, it shows like this :

[Image: R1ycG.jpg]

The original image pure red and pure white.

The white line, that is a ~1 px from the border is at some points too much polluted by the red color. And the red color is locally too much polluted by the white color.

There is also some aliasing that I want to remove.

Thanks for your advices.
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Jul 18, 2012, 09:57
Post: #2
RE: How improve the border of a small image after rotation ?
Thank you for your answer, Ofnuts, and for the well-done example files.

However, the final 25x25 image suffers from exactly the same problem as mine.
If you remove the display of the guides, you'll see something like small red lines crossing the white edge, with a spiral-like pattern.

If you zoom your final image, you'll see it looks very much like mine, with some unwanted periodic effect. Of course, this is due to the fact the picture is very small, leading to some "breakpoints" in the white line.

I could improve things a little bit with the clone tool, cloning portions of the white edge from where is displays correctly. However, it's hard to get a rotated flag that looks really nice.
One "solution" was to add some extra white at the locations where the red dots tends to appear when resizing, but this is kind of bet before each "resize-down".
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