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zanazakaryaie / fastGaussianBlur

step-by-step tutorial for optimizing a Gaussian image smoothing function
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error ” ‘CV_CPU_HAS_SUPPORT_SSE2’ #2

Closed alisonzhang88 closed 3 years ago

alisonzhang88 commented 3 years ago

I downloaded the tutorial code and run the simd code in my x86 PC, got an error ” ‘CV_CPU_HAS_SUPPORT_SSE2’ was not declared in this scope”. I switched to run code on ARM platform, got a similar error ” ‘CV_CPU_HAS_SUPPORT_NEON’ was not declared in this scope”. Do you have any idea to solve it?

the opencv environment I used below:

General configuration for OpenCV 3.3.0 ===================================== Version control: unknown

Extra modules: Location (extra): /home/bongos/opencv_contrib-3.3.0/modules Version control (extra): unknown

Platform: Timestamp: 2021-05-26T09:26:14Z Host: Linux 4.15.0-142-generic x86_64 CMake: 3.14.0 CMake generator: Unix Makefiles CMake build tool: /usr/bin/make Configuration: RELEASE

CPU/HW features: Baseline: SSE SSE2 SSE3 requested: SSE3 Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 requested: SSE4_1 SSE4_2 AVX FP16 AVX2 SSE4_1 (2 files): + SSSE3 SSE4_1 SSE4_2 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX AVX (5 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX AVX2 (7 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2

C/C++: Built as dynamic libs?: YES C++11: YES C++ Compiler: /usr/bin/c++ (ver 5.4.0)

zanazakaryaie commented 3 years ago

Hi @alisonzhang88 In OpenCV 3.x, universal intrinsics can be accessed only internally (inside the library code). With version 4.x, they made them publicly available. So, uninstall your OpenCV and install version 4.x. Let me know if you still get the same error.

zanazakaryaie commented 3 years ago

Hi @alisonzhang88 Did you observe the same error with OpenCV 4?

alisonzhang88 commented 3 years ago

Hey, Zana

Yes, it works. Thank you so much.

Zana Zakaryaie Nejad @.***> 于2021年10月1日周五 下午1:35写道：

Closed #2 https://github.com/zanazakaryaie/fastGaussianBlur/issues/2.

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