GIMP Plugin Registry

EAW Sharpen is a filter which sharpens an image without annoying halos.
It's based on Mikes Python plugin:
http://www.mm-log.com/blog/2010-04-05/gimp-edge-avoiding-wavelets
More info about the algorithm from Raanan Fattal:
http://www.cs.huji.ac.il/~raananf/projects/eaw/index.html  read more »

A simple detail enhancing/sharpening filter based on my simple bilateral code. It is essentialy a low precision version of the detail enhancement stage of some local tone mapping algorithms.

In non technical terms this is basically the anti surface blur. It takes a surface blur as a base layer, compares it with the original image and magnifies the differences. It brings out textures and makes skin look pretty horrible.

It will appear under:

Filters->Enhance->Enhance Details...

Windows version provided by Francois_C. Updated.

This script does LAB sharpening using the unsharp mask in the luminance (L) layer. It decomposes the image into LAB layers, sharpens the luminance layer (using the supplied settings), and then recomposes the image. The interface is the same as the unsharp mask (radius, amount, threshold), but the filter is only applied to the luminance layer.

This script sharpens an image using some simpel layer manipulations. It offers a Radius and a strength operator to increase strength vs quality. I also added a simpel brightness correction in order to remove highlights created by a too high sharpening value. IT's therefore recommended to increase the correction value when increasing the strength value a lot.

This plugin is not more maintained but still works very well On Gimp 2.6 and even 2.7
Was developed by Peter Heckert , Windows binary were provided by Michael Schumacher.  read more »

The G'MIC plug-in for GIMP proposes a set of various filters to apply on your images, including artistic effects, image denoising and enhancement algorithms, 3D renderers, etc.. It is a quite large plug-in, integrating a lot of different effects.

This plug-in is able to :

• Propose an image preview window for each available filter.

A new Windows compilation of the last version of this fine plugin written by Marcor.
No console window. Compiled with LDFLAGS=-mwindos as usual.

(2009/12/26) New compilation of same sources. French localization added. Locale dir fixed this way:
LOCALEDIR = /PROGRA~1/GIMP-2.0/share/locale
Which means (any drive)/Program Files (or Programmi, and so on...)/GIMP-2.0/share/locale for your language files.

The archive contains two directories:  read more »

This implements a sharpening technique as described at
http://digitalphotographer.com.ph/forum/showthread.php?t=1085
This is Manny Librodo's Sharpening moves. You can give it a try and you will be surpised with the quality. One caveat, there really is no one set formula for sharpening so you may want to experiment with different amounts for different images.

The wavelet sharpen plugin enhances apparent sharpness of an image by increasing contrast in high frequency space. The amount of unsharpness of the original image can be taken into account by adjusting the sharpening radius. As an option you can choose to sharpen the luminance (YCbCr) channel of the image only.  read more »

About

"Scale in steps" resizes an image to the given dimensions in several steps to get a way sharper result compared to resizing in one step. The step size is given in percent and should range between seven and ten percent.

Samples

None of the sample images are sharpened. The original picture was 3000×2000.

baerm_s5.jpg

Stepsize: 5%

baerm_s.jpg

Stepsize: 10%

baerm_f.jpg

Traditional scaling