Hi guys, I am using Opencv and have a question to ask your opinion.
I am using the OpenCV for Android NDK, and I just use the libopencv_java4.so.
It seems that it is not compiled with NEON (correct me if I am wrong). However, IMHO, NEON, the SIMD architecture, can dramatically speed up the library. On the other hand, I think if the people in OpenCV decide to compile without NEON, there must be a big reason. Therefore, I am hoping for advice about:
Shall I compile with NEON?
Will NEON boost up the speed (I think yes?) ?
What are the disadvantages of compiling with NEON, if any? (i.e. Why OpenCV does not compile with NEON by default?)
I would truly appreciate it for any suggestions!
Thank's a lot!
author: [du lich viet](https://answers.opencv.org/users/421211/copperfield/)
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