The object of image compression is to minimiz

redundant information. This redundancy is due to correlation

between adjacent pixels in a digital image. Different approaches

with variable efficacies deal with this type of redundancy the

decomposition into sub-bands either through discrete cosine

transforms or through discrete wavelet transforms is

used.-The object of image compression is to minimiz

redundant information. This redundancy is due to correlation

between adjacent pixels in a digital image. Different approaches

with variable efficacies deal with this type of redundancy　the

decomposition into sub-bands either through discrete cosine

transforms or through discrete wavelet transforms is

used.