You can sharpen an image in GIMP on your computer using the Sharpen tool or the Sharpen filter. Here is a full tutorial on how to do it!

Learn how to blend two images in GIMP using layer opacity, image blend mode and gradient tool over a layer mask.

How to Layer Images & Match Background Colors Using GIMP. The open source image-editing program GIMP is a good alternative to programs like Photoshop for creating eye-catching images, documents ...

Hands-on: testing the GIMP 2.8 and its new single-window interface We go hands-on with the latest update of the venerable open source image editor.

The GIMP is an open source software application for editing raster graphics. It is intended to serve as a free and open alternative to high-end image editing programs for a professional audience.