Open Source Groovy Graphics Software

Img Optimizer Gradle Plugin is a build-time utility for Android projects that automatically compresses PNG images to reduce APK size. It supports both lossless compression (no quality loss) and near-lossless or more aggressive compression modes, depending on configuration. The plugin runs during the Gradle build cycle, scanning image assets and applying optimizations transparently, which helps minimize the app’s binary footprint without manual image editing. Because it is integrated into the build, it can process only changed images and skip redundant work, improving performance. Its configuration is minimal, making it easy to adopt in existing Android projects. For apps sensitive to download size or memory usage, this plugin offers a practical way to squeeze out extra gains in deployment efficiency.

MyJaPhoO My Java Photo Organizer Manages local Photo and Video Collections

The ComicReader is a program to read daily comics like Garfield, Dilbert, Userfriendly and lots of other daily comics. The comicreader has unique features like autodownloading the comics, central managed comic definitions and the option to email comics.

JLink lets users author flow charts based on ISO 5807 and IBM standards. Developers can use JLink to add flowcharts to applications, serve a flow chart over the web in PDF or PNG, or dynamically create a flowchart with Javascript, Python or Ruby scripts

CompressPng is a Java/Groovy library/plugin aimed at automating the compression of PNG images in an Android / JVM-based build environment. It is intended to help with automatically compressing images (e.g., for Android apps) during the build process, possibly integrating with Gradle or build scripts, thereby reducing the size of PNG assets integrated into apps. Support for usage via Gradle or other JVM build tools (via dependencies). Automatic PNG compression integrated into build workflows. Transparent integration (developers may not need manual steps). Minimal configuration surface (simple plugin / API).

GSN is a middleware (extendible software infrastructure) for rapid deployment and integration of heterogeneous wireless sensor networks. It is tested with Mica2, Mica2Dot, TinyNodes, Wisenode ,Wired & Wireless cameras, several RFID readers,...

photodisplay project a web app to display photos (PhotoAlbum.war) a helper script http://photodisplay.sourceforge.net/webnail.html

A basic ray tracer written in the Scala language. Features includes photon mapping and a frontend written in Groovy. Planed features are volumetric lighting and shadow photons.

With this tool a single image or a sequence of images can be transformed into a Super Overlay for Google Earth.

Konte is a java-based scripting engine for generative art.