Opened 5 years ago

Closed 5 years ago

#9571 closed enhancement (fixed)


Reported by: bdubbs@… Owned by: bdubbs@…
Priority: normal Milestone: 8.1
Component: BOOK Version: SVN
Severity: normal Keywords:


New minor version.

Change History (3)

comment:1 by bdubbs@…, 5 years ago

Owner: changed from blfs-book@… to bdubbs@…
Status: newassigned

comment:2 by bdubbs@…, 5 years ago

OpenCV 3.3

Aug 3, 2017


The main news is that we promoted DNN module from opencv_contrib to the main repository, improved and accelerated it a lot. An external BLAS implementation is not needed anymore. For GPU there is experimental DNN acceleration using Halide ( The detailed information about the module can be found in our wiki: Deep Learning in OpenCV.

OpenCV can now be built as C++ 11 library using the flag ENABLE_CXX11. Some cool features for C++ 11 programmers have been added.

We've also enabled quite a few AVX/AVX2 and SSE4.x optimizations in the default build of OpenCV thanks to the feature called 'dynamic dispatching'. The DNN module also has some AVX/AVX2 optimizations.

Intel Media SDK can now be utilized by our videoio module to do hardware-accelerated video encoding/decoding. MPEG1/2, as well as H.264 are supported.

Embedded into OpenCV Intel IPP subset has been upgraded from 2015.12 to 2017.2 version, resulting in ~15% speed improvement in our core & imgproc perf tests.

716 Pull Requests have been merged and 588 Issues in our bug tracker have been closed since OpenCV 3.2. Additionally, we've run OpenCV through some strict static analyser tools and fixed the detected problems. So, OpenCV 3.3 should hopefully be very stable and dependable release.

comment:3 by bdubbs@…, 5 years ago

Resolution: fixed
Status: assignedclosed

Fixed at revision 18994.

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