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'refocus' is a Gimp plug-in that sharpens images. It is meant for use with scanned photos and slides, and in many cases produces much better results than the sharpen or unsharp mask plugins. Using a technique called FIR Wiener filtering, the program refocuses an image that may have gotten blurry during scanning or scaling. It includes a preview feature that helps you to select the best parameters.


User guide included and available in HTML format from


Download version 0.9.0 (stable)
released on 4 February 2003

VCS Checkout


Related Projects


LicenseVerified byVerified onNotes
GPLv2orlaterJanet Casey4 February 2003

Leaders and contributors

Ernst Lippe Maintainer

Resources and communication

Audience Resource type URI
Developer VCS Repository Webview
Bug Tracking,Developer,Support E-mail

Software prerequisites

Kind Description
Required to use GTK+ 2.0 or later
Required to build Gimp 1.2 or later
Required to build GTK+ 2.0 or later
Weak prerequisite ATLAS (
Required to use Gimp 1.2 or later

This entry (in part or in whole) was last reviewed on 4 February 2003.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.

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