Title
Efficient palette-based decomposition and recoloring of images via RGBXY-space geometry.
Abstract
We introduce an extremely scalable and efficient yet simple palette-based image decomposition algorithm. Given an RGB image and set of palette colors, our algorithm decomposes the image into a set of additive mixing layers, each of which corresponds to a palette color applied with varying weight. Our approach is based on the geometry of images in RGBXY-space. This new geometric approach is orders of magnitude more efficient than previous work and requires no numerical optimization. We provide an implementation of the algorithm in 48 lines of Python code. We demonstrate a real-time layer decomposition tool in which users can interactively edit the palette to adjust the layers. After preprocessing, our algorithm can decompose 6 MP images into layers in 20 milliseconds.
Year
DOI
Venue
2018
10.1145/3272127.3275054
ACM Trans. Graph.
Keywords
Field
DocType
RGB, color space, compositing, convex hull, generalized barycentric coordinates, images, layers, mixing, painting, palette, recoloring
Computer vision,Color space,Convex hull,Millisecond,Preprocessor,RGB color model,Artificial intelligence,Compositing,Python (programming language),Mathematics,Scalability
Journal
Volume
Issue
ISSN
37
6
0730-0301
Citations 
PageRank 
References 
5
0.39
13
Authors
3
Name
Order
Citations
PageRank
Jianchao Tan1333.59
Jose I. Echevarria2789.52
Yotam I. Gingold314315.54