Merge pull request #8694 from mschoeneck:Canny

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Parallelize Canny with custom gradient (#8694)

* New Canny implementation. Restructuring code in parallelCanny class. Align mag buffer and map.

* Fix warnings.

* Missing SIMD check added.

* Replaced local trailingZeros in contours.cpp. Use alignSize in canny.cpp

* Fix warnings in alignSize and allocate just minimum extra columns.

* Fix another warning in map.create.

* Exchange for loop by do loop to avoid double check at the beginning.
Define extra SIMD CANNY_CHECK to avoid unnecessary continue.

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mschoeneck

2017-05-24 15:20:25 +02:00

committed by Alexander Alekhin

parent 2e056fbe8a

commit 4a4d94f266

3 changed files with 509 additions and 703 deletions

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modules/imgproc/src/canny.cpp

+476 -667

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