This is an early port of the JS image manipulation library CamanJS to Java. There is still a lot of room for improvement and not all functionality has been ported over yet; however, CamanJ is quickly improving in speed and memory management.

Both suggestions and contributions are welcome!

All benchmarks are run against an image of size 3872x2592 using the Example.java program.

• Test CPU: Intel Core i7 2.66GHz (dual-core with hyperthreading)
• Render time: ~1880ms

• Test CPU: Intel Core i7 2.75GHz (quad-core with hyperthreading)
• Render time: ~1100ms

// Load CamanJ with our image
CamanJ caman = new CamanJ("images/example1.jpg");

// Apply the brightness and contrast filters
caman.filter("brightness").set(30);
caman.filter("contrast").set(10);

// Apply a preset too if you want
caman.preset("lomography");

// Output the modified image to a new file
caman.save("output/example1.jpg");

• Similar interface to the original CamanJS library
• Very simple to use for image manipulation
• Extremely fast with the ability to handle very large images
• Android compatibility
• Easily extensible with new funcitonality (e.g. with JARs and ServiceLoader)