Compressão de sinais, marca d'água digital e reconhecimento de padrões são exemplos de
aplicações de quantização vetorial (QV). Um problema relevante em QV é o projeto de …

Genetic Algorithm (GA) has been successfully applied to codebook design for vector
quantization and its candidate solutions are normally turned by LBG algorithm. In this paper …

Vector quantization is a compression technique which is used to compress the image data in
the spatial domain. Since it is a lossy technique, so maintaining the image quality and the …

Codebook Optimization is a concept of vector quantization which is applied to achieve lossy
compression. Optimization of the codebook helps in maintaining the quality of the image …

A novel steganographic scheme is proposed. For image compression, wavelets and genetic
programming is used. This image compression is build upon the DWPT to shorten the …

To solve premature phenomenon and falling into local optimum of genetic algorithm, the
simulated annealing algorithm is introduced to the genetic algorithm and a simulated …