I began using IPP for image processing recently. When I use the function:
"ippiSub_16s_C1RSfs" instead of pixel-by pixel subtraction it works very slow - more than 2ms for a 352X272 pixels image.
The strange thing is that if I decrease the number of threads from 8 to 1 the software runs faster - less than 1ms. I like it to run as fast as possible...
CPU: i7 CPU Q 720 @1.60GHz 1.60GHz
Memory: 4.00 GB (2.94 GB usable)
OS: 32-bit, windows 7
Thanks in advance,