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pratham-mcw
3cf98c51c8
core: add NEON implementation for rotate function #28609 - This PR adds a NEON intrinsics-based implementation for the rotate function in matrix_transform.cpp for Windows-ARM64. - The optimized implementation uses ARM NEON intrinsics to accelerate the internal transpose step used by the rotate function. - In the x64 architecture, the rotate operation benefits from IPP-based optimized implementations. However, on ARM64, the execution falls back to the scalar implementation, which results in lower performance. - To achieve performance parity with x64, a NEON-based SIMD implementation has been added for ARM64. - After introducing these changes, the rotate function showed noticeable performance improvements on ARM64 platforms. <img width="1009" height="817" alt="image" src="https://github.com/user-attachments/assets/8bec0041-b19c-4fc8-9103-532746224515" /> - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch