"Tor Olav Kristensen" <tor### [at] TOBEREMOVEDgmail com> wrote:
> 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.
Here's the original image.
The difference in sharpness can easiest be spotted by examining the "Mercury"
text on the outboard engine.
For the source code, see the file Image_Unsharp_Mask.pov in this repository:
https://github.com/t-o-k/POV-Ray-gaussian-blur
--
Tor Olav
http://subcube.com
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