An adaptive total variational despeckling model based on gray level indicator frame

<p style='text-indent:20px;'>For the characteristics of degraded images with multiplicative noise, gray level indicators for constructing adaptive total variation are proposed. Based on new regularization term, we propose convex variational model. Then, considering existence, uniqueness and comparison principle minimizer functional. The finite difference method rescaling technique primal-dual step size used to solve minimization problem. paper ends a report numerical tests denoising subject other methods is provided as well.</p>