Digital Dyadic Wavelet Transform-Based Image Enhancement with MATLAB Implementation

This MATLAB source code implements image enhancement through digital dyadic wavelet transforms. The algorithm performs multiscale decomposition of input images using dyadic wavelet transforms, then manipulates the transformation coefficients to enhance various image characteristics. Key enhancement features include contrast improvement through coefficient scaling, edge enhancement via high-frequency coefficient amplification, and detail preservation through multi-resolution processing. The implementation allows parameter customization for threshold values, enhancement factors, and decomposition levels to achieve desired visual results. Core functions involve wavelet decomposition (wavedec2), coefficient modification, and wavelet reconstruction (waverec2) operations. Before compilation, ensure MATLAB software installation and basic programming/image processing knowledge. This code provides a practical framework for researching wavelet-based image enhancement techniques, featuring adjustable parameters for experimental customization.