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Merge remote-tracking branch 'upstream/3.4' into merge-3.4

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Alexander Alekhin
2019-04-05 19:02:24 +00:00
parent aa1359dc19 28925572f6
commit c9fc27b337
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doc/tutorials/gpu/gpu-basics-similarity/gpu_basics_similarity.markdown
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@@ -97,9 +97,7 @@ I1 = gI1; // Download, gI1.download(I1) will work too
@endcode
Once you have your data up in the GPU memory you may call GPU enabled functions of OpenCV. Most of
the functions keep the same name just as on the CPU, with the difference that they only accept
*GpuMat* inputs. A full list of these you will find in the documentation: [online
here](http://docs.opencv.org/modules/gpu/doc/gpu.html) or the OpenCV reference manual that comes
with the source code.
*GpuMat* inputs.
Another thing to keep in mind is that not for all channel numbers you can make efficient algorithms
on the GPU. Generally, I found that the input images for the GPU images need to be either one or