EZW MATLAB Source Code for Image Compression Experiments

This EZW (Embedded Zerotree Wavelet) MATLAB source code is designed for image compression experiments. The implementation helps users conduct experimental research in image compression through wavelet transformation and progressive encoding techniques. By utilizing this codebase, researchers can study the fundamental principles and practical applications of wavelet-based compression algorithms. The code structure includes key functions for wavelet decomposition, zerotree symbol generation, and bit-plane coding that enable progressive image transmission. Users can modify and adapt the source code parameters to perform various compression tests with different wavelet filters, threshold values, and encoding strategies. This flexibility allows for comprehensive analysis of compression ratios, image quality metrics like PSNR, and computational efficiency. The commented MATLAB implementation serves as an excellent educational tool for understanding multiresolution analysis and embedded coding techniques, making it particularly valuable for students and researchers working on image compression technology development and optimization studies.