Aviris Hyperspectral Images Compression Using 3D Spiht Algorithm
Hyperspectral sequence image is compressed using 3D Discrete Wavelet Transform (3D DWT) to decorrelate the three dimensions of hyperspectral image. Than the sequence is encoded efficiently by the 3D SPIHT algorithm, which operates on the pyramid structure of wavelet coefficients obtained. After decompression, the image evaluated by the PSNR, are faithfully reproduced and the memory space required for storage and transmission has been reduced. The Building of GUI in MATLAB has facilitated the use of algorithms developed and the tests of the compression for different parameters.