Transparency and robustness are two conflicting requirements demanded by digital image
watermarking for copyright protection and many other purposes. A feasible way to …

This paper considers the design of a lossy image compression algorithm dedicated to color
still images. After a preprocessing step (mean removing and RGB to YCbCr transformation) …

Geometric distortion is known as one of the most difficult attacks to resist, for it can
desynchronize the location of the watermark and hence causes incorrect watermark …

A color image compression algorithm based on quaternion neural network approach is
proposed. The original RGB based color image of Lena can be firstly modeled as pure …

A simple and efficient method for lossy colour image compression is proposed. Here, the
discrete cosine transform (DCT) is applied to the YCbCr image obtained from the original …

Digital watermarking is important for protecting the intellectual property of remote sensing
images. Unlike watermarking in ordinary colour images, in colour remote sensing images …

The intention of data compression is to promote the storage and delivery of big images with
excellent compression ratio and least distortion. Moreover, the number of internet user is …

This paper describes a color image compression technique based on Discrete Wavelet
Transform (DWT) and Genetic Algorithm (GA). High degree of correlation between the RGB …

Under low bit‐rate requirements, JPEG baseline causes compression artifacts in the image.
Through this paper, a novel region‐of‐interest (ROI) dependent quantization method in …

This paper presents the performance of different blockbased discrete cosine transform
(DCT) algorithms for compressing color image. In this RGB component of color image are …