A layer built on top of the Insight Toolkit (ITK)
An image processing library written entirely in JavaScript for Node
Add watermark to any image or photo (batch processing available).
ArrayFire, a general purpose GPU library
Image loading system
Constantly summarizing open source dataset and critical papers
Fast, secure image processing server and Go library, using libvips
BoofCV is an open source Java library for real-time computer vision.
Scientific Visualisation Made Easy
Scan Tailor Experimental is an interactive post-processing tool
Wrapper around System.Drawing for the processing of image files
A modern, cross-platform, 2D Graphics library for .NET
PHP Image Processing
A fast image processing library with low memory needs
Image processing in Python
A modern approach for Computer Vision on the web
Volumetric image processing software