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I have been scanning film and I just got sick of the Unsharp mask setting of my scanner software (EPSON Scan). It just makes the grain look huge and unnatural, resulting in weird contrast on most images. Trying to find better ways to sharpen my images I decided to try some other options like smart sharpening or warp-sharp on Gimp. The first option seems great but the warp-sharp seems most practical because it implies to just run a script on the image.

I downloaded the warp-sharp script from here and placed it in C:\Program Files\GIMP 2\share\gimp\2.0\scripts. I then refreshed the Script-fu scripts under the Filters bar. I now can find the Warp sharp tool under Filters->Enhance->Warp sharp.

But whenever I run the script on a picture, I get the following error messages:

I tried searching about this issue but nothing relevant came up. Or at least I could not find it. How can I make the script work?

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It's most likely a problem with versions

The plugin you downloaded is said to be version 1.5 and though it says (emphasis mine):

Version 1.5 updated for Gimp 2.2 and later

The official help pages for GIMP scripting says (again, emphasis mine):

Plugins have been a feature of GIMP for many versions. However, plugins written for one version of GIMP can hardly ever be used successfully with other versions. They need to be ported: sometimes this is easy, sometimes not. Many plugins are already available in several versions. Bottom line: before trying to install a plugin, make sure that it is written for your version of GIMP.

EDIT: Apparently this is an issue present for many years.

UPDATE: The GIMP team is revamping the tutorials; so while the link to the Warp-sharp tutorial is still there, it's no longer advertised in the tutorials page.

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  • I am aware of the information that you provide in your answer, but I find it strange that the official GIMP website continues to host a tutorial using this particular script if it no longer works for the current version... – Meclassic Apr 18 '16 at 12:33
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    @jrojasqu GIMP relies on participation from users for both the program itself and keeping the website updated. Perhaps you could contact them to let them know? – Roflo Apr 18 '16 at 14:42
  • It seems like this has never been brought up to the original script author - who is present on the irc://irc.gimp.org/gimp IRC channel, btw. – Michael Schumacher May 1 '16 at 12:11
  • FWIW, I sent him an email but hasn't answered. @MichaelSchumacher do you know his IRC nick? Or did you happen to tell him about this? – Roflo May 5 '16 at 14:04

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