EZW MATLAB Implementation
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This example provides a complete MATLAB implementation of the Embedded Zerotree Wavelet (EZW) algorithm, containing both encoding and decoding modules. The encoder module transforms input data into EZW-encoded format using wavelet decomposition and zerotree quantization techniques, while the decoder reconstructs the original input from the EZW encoded data through inverse quantization and wavelet reconstruction. The implementation demonstrates key EZW concepts including significance maps, subordinate passes, and bit-plane coding. Through this practical code example, users can gain deeper understanding of EZW compression principles, wavelet coefficient organization, and progressive transmission mechanisms. The code includes functions for threshold calculation, coefficient scanning, and bitstream management, providing a hands-on learning experience for image compression algorithms.
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