Coding Implementation By Using Discrete Wavelet Transform

Abstract

Image processing can be considered as an essential part of wide rangecomputer applications. This application deals with image coding and it discussesimage coding schemes, by using transforms to code the image or not. Huffmancoding and Run Length coding are not using transforms to code the image,moreover, threshold coding and Zonal coding use transforms to code the image.Two types of transforms, Discrete Cosine Transform (DCT) and Discrete WaveletTransform (DWT) have been used after segmenting the image into blocks, andthen Zonal coding algorithm or threshold coding algorithm is used to get the codedimage. Finally we conclude that using wavelet transform is better than othertransforms when it is used for image coding.