Dual-Tree Complex Wavelet Transform Source Code

This source code implements the "Dual-Tree Complex Wavelet Transform," serving as an advanced image processing tool that maintains six-directional selectivity similar to Gabor transforms. The algorithm employs two parallel wavelet filter banks with carefully designed filters to achieve approximate shift-invariance and directional selectivity. Compared to Gabor transforms, this implementation demonstrates substantially reduced redundancy through efficient tree-structured decomposition, making it particularly suitable for specialized image processing applications like texture analysis and image enhancement. The code architecture includes core functions for forward and inverse transforms, with proper parameter handling for different decomposition levels. Notably, the source code is available for direct download and immediate implementation, featuring comprehensive comments and example usage scripts that demonstrate its practical application in image processing workflows.