
Originally Posted by
thorfdbg
Compression and decompression speed of JPEG 2000 is very much dependent on thenumber of bitplanes included in the codestream. The wavelet transformation is computationally simple, and so is the quantization and the color transform, but the EBCOT takes a lot of time - its decoding time is approximately proportional to the number of included bitplanes. Hence, compression/decompression performance of JPEG 2000 is much more quality dependent than that of any other coding method.