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Questions tagged [opencv-contrib]

OpenCV is an open source computer vision library, free for commercial and research use. opencv-contrib is a repository containing extra OpenCV modules and contributed functionality.

Documenation for opencv_contrib can be found at http://docs.opencv.org/3.1.0/d3/d81/tutorial_contrib_root.html

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Non-free algorithms stays NO Ubuntu 16.04 opencv-3.4.4

I am on Ubuntu 16.04 (clean install) following this tutorial . Instead of 3.1.0 I tried to install 3.4.6 which did not work, because the Non-free algorithms are not being included. I again tried with version 3.4.4 which again did not work. The…
Gertjan Brouwer
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Process finished with exit code 139 (interrupted by signal 11: SIGSEGV) when calling cv.saliency_MotionSaliencyBinWangApr2014.computeSaliency( )

I want to use the cv::saliency::MotionSaliencyBinWangApr2014 module. My code is like this: import cv2 salCV = cv2.saliency.MotionSaliencyBinWangApr2014_create() frame = cv2.imread(imgfile) grayFrame = cv2.cvtColor(frame,…
ToughMind
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ERROR：the function/feature is not implemented(the algorithm is patented....)

enter image description here I already use CMake to compile the opencv-contrib, and the xfeatures2d file is existd, it also has nonfree.hpp,but still post this error! what should I do? Thanks in advance!
liwei ni
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Tracker undefined after installing extra modules openCV

I am currently trying to have OpenCV working with OpenCV extra modules (especially the tracking module) on Linux (Ubuntu 16.04), cmake 3.5.1 I downloaded the version 3.4.5 of OpenCV from https://opencv.org/releases.html and the OpenCV contrib 3.4.5…
user10927009
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Where to download OpenCv contrib for windows?

OpenCv release in the official page, https://opencv.org/releases.html does not provide contrib release. For Android, contrib can be found https://pullrequest.opencv.org/buildbot/builders/3_4-contrib_pack-contrib-android. But where can I find windows…
Syaiful Nizam Yahya
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I have installed correctly opencv_contrib but qt creator doesn't find xfeatures2d directory

I am using OpenCV with C++ on Ubuntu 16.01 I have to use SURF. I have already installed opencv_contrib correctly (i followed this link) but when i try to write the path: #include "xfeatures2d/xfeatures2d.hpp in my .hpp program I found this…
Carlos Justo
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Can't load Caffe model with DummyData layer

when I try to load a caffe model with OpenCV 3.4.3, I get the error what(): OpenCV(3.4.3) /home/schneider/libs/opencv-3.4.3/modules/dnn/src/dnn.cpp:412: error: (-2:Unspecified error) Can't create layer "DummyData1" of type "DummyData" in function…
vimansa
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Android SLIC superpixel

I'm new android developer. I'm looking to use the superpixel SLIC algorithm on android studio. but after testing my code i got this bug: java.lang.UnsatisfiedLinkError: No implementation found for long…
ben mbarek Manef
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unable to complete 'make -j7' with opencv_contrib modules

Cmake can not compile extra modules from opencv_contrib. I am following theese instructions . Sorry for my length of my Ask, but giving more info about my Issues. This is example of my CMake options: cmake -DCMAKE_BUILD_TYPE=RELEASE…
Lukáš Vojtek
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An Issue with OpenCV extra modules

Because I couldn't compile a cpp code with using #include "opencv2/text.hpp in .cpp file I noticed I probably have not linked and correctly set OpenCV libraries from extra modules. Ok, so I tried instructions here here. I opened terminal and…
Lukáš Vojtek
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How to import openCV with contrib on Android using CMake?

I try import openCV with contrib on Android. I referenced this site: http://www.cnblogs.com/fx-blog/p/8206737.html I failed to build opencv with contrib for Android, so I downloaded opencv with contrib sdk. I imported module, set dependency and…
손민성
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python raspberry opencv: AttributeError: 'module' object has no attribute 'face'

I am using raspberry pi 3. I already installed opencv and it works perfectly. I am trying to use the following command face_recognizer = cv2.face.createLBPHFaceRecognizer() but I get this error: AttributeError: 'module' object has no attribute…
danny3s
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Building OpenCV & OpenCV Extra Modules For Android From Source

I used the link below https://zami0xzami.wordpress.com/2016/03/17/building-opencv-for-android-from-source/#comment-81 I succeeded build for armeabi-v7a abi i want build for arm64-v8a and do not see in Android Abi list enter image description here
morteza heydari
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Cmake configuration error when configuring opencv_contrib in Windows10

My IDE is Visual Studio 2013, when I cofigured opencv_contribute, CMake_GUI ouptut: found IPP (ICV version): 9.0.1 [9.0.1] at: E:/opencv/OpenCV3/opencv/3rdparty/ippicv/unpack/ippicv_win Could NOT find Doxygen (missing: DOXYGEN_EXECUTABLE) To…
Finley
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Opencv-structured-forest or Fast-edge-detection (Android onPreviewFrame) too slow

I am using Java wrapper class to do this feature by opencv extra modules(Ximgproc) . this is the code below, Mat resizeMat = /* frames from android camera */ ; StructuredEdgeDetection pDollar =…
Shyam Kumar
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