it explains the ID DWT concepts. and the codes are in VHDL and MATLAB

用DWT实现二维小波变换 二维小波分解 重构图形与原始图像误值-With the realization of two-dimensional wavelet transform DWT wavelet decomposition of two-dimensional graphic reconstruction of the original image with the wrong value

Matlab codes for decimation, interpolation, histogram equalization, DCT, DWT. Matlab code for Hamming code generation and error correction. Sample C codes for DSP downsampling and upsampling. They all include output and graphs.