NLGRTV

Adaptive sparse norm and nonlocal total variation methods for image smoothing

%% The Code is created based on the method described in the following paper:
% Qiegen Liu, Biao Xiong and Minghui Zhang. Adaptive sparse norm and nonlocal total variation methods for image smoothing,
% Mathematical Problems in Engineering, vol. 2014, Article ID 426125, 18 pages, 2014. doi:10.1155/2014/426125..
% Author: Q. Liu, B. Xiong, M. Zhang
% Date : 05/13/2016
% Version : 1.0
% The code and the algorithm are for non-comercial use only.
% Copyright 2016, Department of Electronic Information Engineering, Nanchang University.
% The current version is not optimized.
clc;
clear all;
close all force;

%% read input image
img = imread('Bishapur_zan.jpg');
%img = img(200:400,250:450,:);

%% parameters
maxIter = 5;
sigma = 2;
lambda = 0.005;
p = 1;
S = 2;
sharpness = 0.02;
sharpness2 = 0.001;

%% denoising
imgDenoised = NLGRTV(img, S, p, maxIter, sigma, lambda, sharpness, sharpness2);