Accelerated library for harris-corner detector

Is there any gpu-accelarated library that helps me to accelerate with gpu the harris-corner detector algorithm?
I tried to accelerate it with pure cuda c, and i would like to compare the performance of my pure cuda c harris algorithm with the accelarated algorothm harris.

Theoritically, the best option would be the gpu accelerated library,isn’t it?
Or the cuda c app is a better option?

Thainks in advance!!!