A linear system form solution to compute the local space average color

作者：Salas Joaquin^*; Tomasi Carlo

来源：Machine Vision and Applications, 2013, 24(7): 1555-1560.

DOI：10.1007/s00138-013-0494-0

• Color constancy
• Gray-world assumption
• Local space average color

In this document, we present an alternative to the method introduced by Ebner (Pattern Recognit 60-67, 2003; J Parallel Distrib Comput 64(1):79-88, 2004; Color constancy using local color shifts, pp 276-287, 2004; Color Constancy, 2007; Mach Vis Appl 20(5):283-301, 2009) for computing the local space average color. We show that when the problem is framed as a linear system and the resulting series is solved, there is a solution based on LU decomposition that reduces the computing time by at least an order of magnitude.

• 出版日期2013-10