It's common to enhance images before displaying them by applying the Unsharp
Mask filter to them. (Gimp and other image editors can be used for doing this.)

I've now added an example in my Gaussian blur GitHub repository that shows how
one can apply an Unsharp Mask filter to images with POV-Ray alone.

The attached image shows an example image where such a filter has been applied
with POV-Ray.

--
Tor Olav
http://subcube.com

Post a reply to this message

Attachments:
Download 'image_unsharp_mask.png' (746 KB)

Preview of image 'image_unsharp_mask.png'