The friendly Python Imaging Library fork
Library to encode and decode images in WebP format
BRIC is a powerful tool for batch image processing.
Advanced image processing toolbox for Scilab on Unix/Linux/Mac OS
View and alter images (batch processing available).
Add watermark to any image or photo (batch processing available).
iwatermark is a image watermarking web application.
Python-accessible toolkit for Geoscience & Remote Sensing Applications