Three-Level Image Decomposition and Reconstruction Using Integer Wavelet Transform

This MATLAB 7.3 implementation performs three-level decomposition and reconstruction of images using integer wavelet transform. The program includes a comprehensive experimental report, demonstration screenshots, and a complete directory structure containing all necessary files, including multiple sample images used as input data to demonstrate the effectiveness of integer wavelet transform. The implementation likely utilizes wavelet decomposition functions such as wavedec2() for multi-level decomposition and waverec2() for reconstruction, specifically employing integer wavelet filters that maintain integer precision throughout the transformation process. Through image decomposition and reconstruction operations, users can gain deeper understanding of wavelet transform principles and their practical applications in image processing. The experimental report provides detailed documentation of the program's design methodology, algorithmic foundations including filter selection and boundary handling, along with thorough analysis and discussion of experimental results. Demonstration screenshots visually showcase the program's performance on various test images, allowing direct observation of the decomposition and reconstruction processes at different resolution levels. All related resources are organized within the program directory, ensuring convenient access and utilization for users. The code structure likely includes main script files for executing the transform, helper functions for visualization, and configuration files for parameter settings, providing a complete research and development environment for wavelet-based image processing.