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##### System information (version)
- OpenCV => 4.1
- Operating System / Platform => ubuntu 18.04 64 Bit
- GPU : Nvidia getfore 1080 ti
##### Detailed description
[ 80%] Built target ope…
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I am applying for Google Summer of Code 2018 in JuliaImages. I have prepared the first draft of my proposal. Here is the link to the [proposal](https://docs.google.com/document/d/1qzzx87M5gWDhl8O2jRy3…
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RuntimeError: Downloaded file missing!
i have download iLIDS-VID.tar , but i don't know how to get Farneback.tar
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Hi, I have build opencv 4.1.0 with cuda 9.2 and I have build the latest available dense_flow repository. I am extracting flow frames for my own video dataset using the build_rawframes.py script. Howe…
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##### System information (version)
- OpenCV => :grey_question: 4.4.0
- Operating System / Platform => Ubuntu 20.04
- Compiler => GCC 8
##### Detailed description
When I try to build OpenC…
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This is likely caused by not running `sudo apt-get update` before build.
```
[ 94%] Built target pch_Generate_opencv_cudaoptflow
[ 94%] Building NVCC (Device) object modules/cudaoptflow/CMakeFile…
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We initially tested Farneback Optical Flow shipped with OpenCV. But, you noticed that its results are not very good. So, I tested [pathak22's pyflow](https://github.com/pathak22/pyflow). Its results a…
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Hi,
Due to the nature of TV-L1 optical flow algorithm, it is quite time consuming to process (but I have more than a 100k videos I must process which makes it quite frustrating to watch),
1) Are …
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I'm trying to use this library but when I run my images through I get all zeros... Here is my code:
```
f0 = cv2.cvtColor(cv2.imread("frames/frame7.png"), cv2.COLOR_BGR2RGB).astype(np.float32) / 2…
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##### System information (version)
- OpenCV => 4.1.0
- Operating System / Platform => Ubuntu 18.04
- Compiler => gcc 7.3.0
##### Detailed description
I ran optical flow detection in a…