A port to Java of Lokesh Dhakar "Color Thief" for it to be executed server side on a JEE container or in a J2SE app, or in an Android application. See http://lokeshdhakar.com/projects/color-thief/ for more informations and usage example of the javascript version.
See test case included in org.soualid.colorthief.MMCQTest (which is not really what I call a test case, it's a shame but you know, I said it was a quick & dirty implementation 🐽).
Basically :
BufferedImage img = /* read your image here using Image IO */;
// Then get the 10 most used colors palette (first being the dominant color of the image)
List<int[]> result = MMCQ.compute(img, 10); // 10 is the number of dominant colors to find Will return a list of dominant colors, where each integer array contains the red, green and blue values of each color in the palette.
As a naive implementation, a prebuilt version of this library has not been made available on maven central or anywhere, but you can build it using Apache Maven, a simple mvn package will build the project, and the install or deploy goals can be used to make the artifact available within your local and/or private repository.
Anyway, I guess you don't really need help on how to use Maven.
Simon Oualid (simon@oualid.net), originally for the wipplay.com website (http://www.wipplay.com)
- Lokesh Dhakar - for the original Color Thief javascript version, available at http://lokeshdhakar.com/projects/color-thief/
- Nick Rabinowitz - for creating quantize.js (ported here in Java)
Licensed under the Creative Commons Attribution 2.5 License
- Free for use in both personal and commercial projects.
- Attribution requires leaving author name, author homepage link, and the license info intact.