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How OpenMP multi-threading can be utilized to parallelize an OpenCV based sequential program? Any example is not found.

asked 2017-05-13 02:27:27 -0500

Helal Uddin Mullah gravatar image

updated 2017-05-13 02:30:06 -0500

Suppose I have to find the negative of a large dimension image, say 1000x1000. If I simply perform pixel value subtraction from 255, it needs to process 10,00,000 numbers of pixels one by one in sequential. If I want to allow OpenMP multi-thread for performing the whole operation partially in several threads which are run on different cores simultaneously. This concept has to be implemented in OpenCV using OpenMP specifications. Need a startup program structure to work on parallel image processing. Your advices will be valuable for me. Thanks.

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answered 2017-05-13 03:01:29 -0500

LBerger gravatar image

In opencv no need to know which system is used to parallelize code. You can use Parallel_loop_body like in this tutorials

This function is defined here

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Asked: 2017-05-13 02:27:27 -0500

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Last updated: May 13 '17