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I wonder how to operate opencv

Hello :)

Please understand my bad english

I tried to code using opencv on android.

and I measured the execution time between Native-C and opencv library.

( I used "bilateral filter")

If I use bilateral filter library in opencv, the execution time using opencv library is faster than Native-C about 10times.

so I have a question.

do opencv library use SIMD NEON or GPU or others??

Only use CPU??

If you know it, Please teach me

Thanks in advance :)