opencv_contrib

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We chat QR Scan crashes with certain images.

9

##### System information (version) - OpenCV => 4.5.4 - Operating System / Platform => Ubuntu 20.04 - Compiler => Visual Studio Code 1.63.2 ##### Detailed description I've implemented the WeChat...

rafaelRinconFo

opencv version : 4.5.5 os : win10 x64 Using the detector of mcc module from [this post](https://github.com/opencv/opencv_contrib/pull/2532), the network cannot detect the color checker reliable. Codes ``` void test_detector_net() {...

stereomatchingkiss

3d (non-planar) Aruco board - Sometimes "mirrored" pose is detected

7

OpenCV: 4.1.2 Im doing some pose estimating on a 3d object with aruco markers, defining a non planar aruco board from the markers. It is working great, but i noticed...

gayoso

Using the substring "flip" in the text for freetype.putText duplicates the last character

6

##### System information (version) - OpenCV => 4.2 - Operating System / Platform => Ubuntu 18.04 - Compiler => gcc ##### Detailed description Having the substring "flip" anywhere in the...

ichu-lsa

https://github.com/opencv/opencv_contrib/blob/6a71751a641463bbe1dd010d899a5b7a0e0d24ae/modules/cudaimgproc/src/gftt.cpp#L126 Method cudaCreateTextureObject is called here, but it has never been released（call cudaDestroyTextureObject ）

twoeggs

latest cocoapods is missing

1

I really like to use OpenCV and contrib in my iOS project, but only a very old version of opencv contrib is in cocoapods. https://cocoapods.org/pods/OpenCV2-contrib contains 3.2.0.1 but this is...

slajar

How to adapt cv::cuda::VideoWriter for Linux?

1

##### System information (version) - OpenCV => 4.5.3 - Operating System / Platform => Ubuntu 18.04 - Compiler => gcc 7 ##### Detailed description `cv::cuda::VideoWriter` ([doc](https://docs.opencv.org/3.4/df/dde/classcv_1_1cudacodec_1_1VideoWriter.html)) is only available for...

Bycob

I have installed the Matlab in my $HOME/local/ folder. And I use `export Matlab_ROOT_DIR=$HOME/local/MATLAB/R2021b` to export a environment variable. But I can't use the `WITH_MATLAB=on` to enable matlab.

zapplelove

cv::cuda::NvidiaOpticalFlow_2_0 producing strange flow-vectors

7

#### System information *CPU* ``` Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 46 bits physical, 48 bits virtual CPU(s): 12 On-line CPU(s) list: 0-11 Thread(s)...

klshrinidhi

CMake fails with generator Ninja Multi-Config when including WITH_CUDA

2

##### System information (version) - OpenCV => 4.5.5 - Operating System / Platform => Windows 10 64 Bit, Ubuntu 20.04 LTS - Compiler => Visual Studio 2019, gcc version 9.3.0...

cudawarped