topic Performance of JPEG2000 encoding/decoding in Intel® Integrated Performance Primitives

Performance of JPEG2000 encoding/decoding

Maciej_K_ — Thu, 26 Jul 2007 09:55:19 GMT

What is expected performance of JPEG2000 encoding and decoding ? I get only about 4-5 fps/core when encoding 704x576 images on Pentium4 3GHz (EM64T). Is there any chance that it can/will be improved ? I need a few times more ...

Thank you in advance,
Kamil

Re: Performance of JPEG2000 encoding/decoding

Vladimir_Dudnik — Thu, 26 Jul 2007 10:05:59 GMT

Hi Kamil,

basically, JPEG2000 algorithm is more complicated than previous JPEG, so it require significantly more calculation power from the system. I would recommend you to use the latest Intel processors like Core2Duo with two or even better four cores as we have threaded JPEG2000 in entropy coding stage.

From our side, we plan add parallelization towavelet transform stage in IPP JPEG2000 sample in future versions.

Regards,
Vladimir

Re: Performance of JPEG2000 encoding/decoding

Maciej_K_ — Thu, 26 Jul 2007 14:37:08 GMT

Thanks for the quick answer ! Actually parallelization makes no difference for me, because I'm running a few decoders in different threads - I thought that I was doing some mistake by using some bad options etc. I don't know much about JPEG2000 and I've not expected it to be so complicated and cpu hungry ...

Kamil