Code is intended to just explain the principle of SPIHT, Arithmetic Coding not Used in this CodeWorks only for 128 x 128 images, u have to generalize

Set_Partitioning_In_Hierarchial_Trees

.....................................\bits_to_symbols.m
.....................................\descendants.m
.....................................\entropy_code.m
.....................................\entropy_decode.m
.....................................\extract.m
.....................................\filename.mat
.....................................\input_bit.m
.....................................\irefinement.m
.....................................\itrans.m

.....................................\lookup_128.m
.....................................\mapping_128.m
.....................................\mark_proper.m
.....................................\offspring.m
.....................................\psnr.M
.....................................\Read_Me.txt
.....................................\refinement.m
.....................................\sphit_main_decode.m
.....................................\sphit_main_encode.m
.....................................\symbols_to_bits.m
.....................................\trans.m

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