LeafPic is a fluid, material-designed alternative gallery, it also is ad-free and open source under GPLv3 license. It doesn't miss any of the main features of a stock gallery, and we also have plans to add more useful features.
Android OpenGL ES 2.0/3.0 Engine
DrawingBotV3 is a software for converting images into vector art
Published on Maven Central Java Library that compares 2 images with the same sizes and shows the differences visually by drawing rectangles. Some parts of the image can be excluded from the comparison. Can be used for automation QA tests.
The Java pathfinder that ended the era of “good enough”
GLTF 2.0 3D format support and PBR shader implementation for LibGDX
Manage local photos on Android: gallery, geotag with photomap, privacy, tags, find, sort, view, copy, send, ... .
Collection of mathematical morphology methods and plugins for ImageJ
Advanced 3D audio features for libGDX desktop users.
Simple library for processing to generate gcode for doing pen-plotting with a 3d printer.
Procedural Cross-Platform 3D Tower Defense WebGame with Physics and AI and Procedural Sound