Alternating minimization algorithms are developed to solve variational models for image colorization based on chromaticity and brightness color system. The proposed methods are based on operator splitting, augmented Lagrangian and alternating direction method for multipliers. Some analytic results as well as numerical results will be presented.

This presentation is part of Minisymposium “MS15 - Nonlinear Diffusion: Models, Extensions and Algorithms (2 parts)”
organized by: Ke Chen (University of Liverpool) , Joachim Weickert (Saarland University) , Xue-Cheng Tai (Hong Kong Baptist University) .

Authors:

Sung-ha Kang (Georgia Institute of Technology)

Maryam Yashtini (Gerogetown University)

Wei Zhu (University of Alabama)

Keywords:

colorization, computer graphics, image enhancement, image reconstruction