Hello, I have using opencv 3.1 application on AM5628 EVM board. And it is very slow. So, can i use NEON flag for that and how? And how can check that NEON has been enabled or not? Please. Regads, Kishan Patel
you can try to use:
cmake -DENABLE_NEON=ON
(when building the opencv libs)
also, opencv_version -hw will show you, which optimization was built in.
in any case, you should use a more recent opencv version. (we're at 3.4.3, now) . 3.1 might not even support NEON optimization.
I have used cmake -DENABLE_NEON=ON on system and then test that it has enabled or not. Please check below log: kishan@kishan-ThinkPad-T430s:~$ opencv_version -hw
4.0.0-pre
OpenCV's HW features list:
ID= 1 (MMX) -> ON
ID= 2 (SSE) -> ON
ID= 3 (SSE2) -> ON
ID= 4 (SSE3) -> ON
ID= 5 (SSSE3) -> ON
ID= 6 (SSE4.1) -> ON
ID= 7 (SSE4.2) -> ON
ID= 8 (POPCNT) -> ON
ID= 9 (FP16) -> ON
ID= 10 (AVX) -> ON
ID= 11 (AVX2) -> N/A
ID= 12 (FMA3) -> N/A
ID= 13 (AVX512F) -> N/A
ID= 14 (AVX512BW) -> N/A
ID= 15 (AVX512CD) -> N/A
ID= 16 (AVX512DQ) -> N/A
ID= 17 (AVX512ER) -> N/A
ID= 18 (AVX512IFMA) -> N/A
ID= 19 (AVX512PF) -> N/A
ID= 20 (AV
ID=100 (NEON) -> N/A ID=200 (VSX) -> N/A ID=256 (AVX512-SKX) -> N/A Total available: 10
Opencv 3.2.0 support NEON but i can't compile the library.. she provide lot of errors and i do not know why, if you try with another version could you give a feed back here of how to do that ?
Asked: 2018-10-15 00:58:10 -0600
Seen: 4,672 times
Last updated: Oct 15 '18
