Edges as a Post-Resize Sharpening Option?

martbetz · July 31, 2023, 7:12pm

I was wondering if it would be possible, or even practical, to include ‘edges’ along with the unsharp mask and RL deconvolution option within the post-resize sharpening module?

Please forgive any possible naivity on my part; all I know is that ‘edges’ seems to be a great ‘true’ sharpening algorithm, so I thought I’d ask the question — at least, if it can’t, I’ll learn something about why my question is a very silly one.

paperdigits · July 31, 2023, 8:15pm

For those of us not in the know… What is ‘edges’?

martbetz · July 31, 2023, 11:37pm

To quote from Rawpedia: "… Edges is a true sharpening algorithm. It does not introduce halos, it can be used on noisy images and it works in the Lab color space. It emphasizes only the edges…

Edges — Rawpedia

martbetz · August 1, 2023, 8:06pm

github.com/Beep6581/RawTherapee

Inclusion of 'Edges' within the 'Post-Resize Sharpening' Module

opened 08:01PM - 01 Aug 23 UTC

martbetz

Would it be possible to include 'Edges' as an additional option to 'Unsharp Mask…' and 'RL Deconvolution' in the 'Post-Resize Shapening' module? Even though 'Unsharp Mask' indeed has a 'Sharpen Only Edges' option, to qoute RawPedia: <i>"Unlike Unsharp Mask, <b>Edges is a true sharpening algorithm. It does not introduce halos, it can be used on noisy images and it works in the Lab color space</b>."</i> As such, would it not be advantagous to also include it at the end of the toolchain?