SPIHT Image Compression Algorithm is modified for Application to Large Images with Limited Processor Memory
Sridhar Ramesh, Dr.A. Shanmugam, B. Gomathy · CiiT international journal of digital image processing · 2011
The SPIHT image compression algorithm is modified for application to large images with limited processor memory. The subband decomposition coefficients are partitioned into small tree-preserving spatial blocks which are each independently coded using the SPIHT algorithm. The bit streams for each spatial block are assembled into a single final bit stream through one of two packetization schemes. The final bit stream can be embedded in fidelity with a small expense in rate. SPIHT encoding and decoding of the spatial blocks can be done in parallel for real-time video compression.