The most digital image watermarking algorithms have nearly always been realised in red,
green and blue (RGB) colour space. In this study, a secure, robust and imperceptible CDMA …

Retinal image quality assessment (RIQA) is essential to assure that the images investigated
by ophthalmologists or automatic systems are suitable for reliable medical diagnosis …

This study proposes a novel image contrast enhancement method based on image
projection onto the squared eigenfunctions of the two dimensional Schr\" odinger operator …

Wavelet-based RIQA algorithms are being recently adopted for RIQA. However, existing
RIQA algorithms do not take full advantage of the wavelet transform's multiresolution …

We propose a data hiding method in color image with its image palette. Many authors
usually embed data into the palette or into the index table of the palette directly. Those data …

Digital watermarking is the field of digital image processing which deals with hiding
information in a digital content. In this paper, performance analysis of DCT (Discrete Cosine …