Coding Implementation By Using Discrete Wavelet Transform
Dr.Matheel Emad AL-Deen AL-Dargazli , Dr.Nuha Abduljabbar Rajab
Abstract

Image processing can be considered as an essential part of wide range computer applications. This application deals with image coding and it discusses image coding schemes, by using transforms to code the image or not. Huffman coding 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 Wavelet Transform (DWT) have been used after segmenting the image into blocks, and then Zonal coding algorithm or threshold coding algorithm is used to get the coded image.
Finally we conclude that using wavelet transform is better than other transforms when it is used for image coding.