Image dehaze using alternating Laplacian and Beltrami regularizations
Zhi Dou, Yubing Han, Weixing Sheng, Xiaofeng Ma · Journal of Electronic Imaging · 2015
We propose an effective physical model based single-image dehazing algorithm under the regularization framework. Using an anisotropic Laplacian term as a constraint, the atmospheric propagation model that encodes the thickness of the haze is estimated by the regularization theory. Employing the physical model, haze-free images are reconstructed via the Beltrami regularization based on the color image manifold theory. Comparative experiments on a variety of test images demonstrate the power and the applicability of the proposed method.