Abstract: In this paper, image-denoising proposed median filter is implemented for denoising of corrupted image and edge preservation. This method enhances the Peak Signal to Noise Ratio(PSNR) and perceives the original features of the images. This filter is compared with median and Adaptive median filter. The paper is organized as follows. Section II presents the introduction to image processi...

The scientific knowledge of the Image Processing Laboratory University of Catania lie in the fields of Image Processing, Computer Graphics, Computer Vision and Pattern Recognition. This paper summarizes some recently research activities of the research group. Specifically, Section 1 discusses results obtained in Medical Imaging domain. Section 2 presents the research activities related to image...

This work proposes an improved scheme to encrypt the digital image for its security. The proposed system is divided into 3 main phases. In first phase, the single digit number into which the given digital image can be divided is calculated. In the second phase, bit rotation, reversal & randomization method is applied on each block of the image. In the third phase, the extended hill cipher techn...

This chapter presents image enhancement and image hiding approaches based on linear image fusion (LIF). Most of materials presented here have been published in (Hsieh et al., 2008; Hsieh et al., 2010; Kondo and Zhao, 2006). Apparently, image enhancement, image morphing, and image hiding are completely different technologies for different applications, they can actually be unified under the core...