Improve OpenJPEG2000 Encoding Decoding Time

by Aditya Deshpande for Grassroots DICOM

The goal is to incorporate a GPU accelerated compression/decompression of JPEG2000 stream in GDCM. Along with the massively parallel architecture like GPU, the SIMD functionality of the multi-core CPUs (MMX, PThreads or OpenMP) can also be used for acceleration.