Image Restoration is a field of Image Processing which deals with recovering an original and sharp image from a degraded image using a mathematical degradation and restoration model. This study focuses on restoration of degraded images which have been blurred by known or unknown degradation function. On the basis of knowledge of degradation function image restoration techniques can be divided i...

In this paper, a novel semi-fragile watermarking scheme utilizing Iterative Restoration techniques is proposed. The scheme embeds a restricted set of restoration data in the transform domain of a cover image, which equates to a highly compressed copy of that image. If tampering occurs, the image is authenticated by comparing the extracted watermark data to encrypted data from a key file to dete...