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How to use BackgroundSubtractorMOG2 for images

由 三世轮回 提交于 2020-01-05 11:01:49
问题 I am pretty new to OpenCV and I am stuck at the moment. I am dealing with images, not a video. Since I will have same background in my project, I thought it would be easier to work, if I could remove my background. But first, I have to ask one thing. Can I use BackgroundSubtractorMOG2 for images? Because it is under video analysis/motion analysis title. I read the documentation on opencv.org and looked through countless examples/tutorials but I am still having difficulty understanding how

How to reduce the noise and enhance the appearance?

由 旧街凉风 提交于 2019-12-11 19:15:42
问题 I am using visual 2010 (C++) with opencv 2.3.1 to construct this code for background subtraction using MOG2. As shown in the full code here it works successfully but with much noise. can anyone suggest on how to reduce this noise. some one (thanks for him) has told me to increase the size of the kernel instead of using this morphological function: void morphOps(Mat &thresh){ Mat erodeElement = getStructuringElement( MORPH_RECT,Size(2,2)); //3x3 Mat dilateElement = getStructuringElement( MORPH

How to use cv::BackgroundSubtractorMOG in OpenCV?

由 我们两清 提交于 2019-12-03 16:29:57
问题 I'm using OpenCV2.2 to implement moving objects detection with the method of Background Subtraction. And I use the Gaussian Mixture Model(GMM) method to model the background reference image. I directly get the foreground pixels(or foreground mask) by using the class cv::BackgroundSubtractorMOG provided in OpenCV2.2. It's convenient but the foreground mask returned by cv::BackgroundSubtractorMOG is not as good as I expected. In addition, it seems that cv::BackgroundSubtractorMOG performs

How to use cv::BackgroundSubtractorMOG in OpenCV?

由 倾然丶 夕夏残阳落幕 提交于 2019-12-03 05:46:18
I'm using OpenCV2.2 to implement moving objects detection with the method of Background Subtraction. And I use the Gaussian Mixture Model(GMM) method to model the background reference image. I directly get the foreground pixels(or foreground mask) by using the class cv::BackgroundSubtractorMOG provided in OpenCV2.2. It's convenient but the foreground mask returned by cv::BackgroundSubtractorMOG is not as good as I expected. In addition, it seems that cv::BackgroundSubtractorMOG performs poorer than the method of GMM wrote in C language provided in OpenCV1.0. The following is my code in OpenCV2

Get background model from BackgroundSubtractorMOG2 in python

由 旧城冷巷雨未停 提交于 2019-11-30 10:13:51
I need to get the background model of a Mixture of Gaussian with opencv. I know that there is a method called getBackgroundImage in C++ I searched if it is possible to get it in python interface but I haven't get good result. I Tried opencv 3.0.0-dev because it has BackgroundSubtractorMOG2 implementation, but help() function don't document method implementation for background model. Do you know if there is undocumented implementation? I searched how to edit opencv source to implement a python implementation but i haven't found documentation about it. I prefer avoid to use scipy.weave to

OpenCV: how to use createBackgroundSubtractorMOG

由 断了今生、忘了曾经 提交于 2019-11-30 06:25:00
问题 I was trying to go through this tutorial på OpenCV.org: http://docs.opencv.org/trunk/doc/tutorials/video/background_subtraction/background_subtraction.html#background-subtraction The MOG pointer is initialized as Ptr<BackgroundSubtractor> pMOG; //MOG Background subtractor and in main, it is used in the following manner: pMOG = createBackgroundSubtractorMOG(); However, this yields the following error: Error: Identifier "createBackgroundSubtractorMOG" is undefined Also, when the background

Get background model from BackgroundSubtractorMOG2 in python

由 回眸只為那壹抹淺笑 提交于 2019-11-29 10:24:30
问题 I need to get the background model of a Mixture of Gaussian with opencv. I know that there is a method called getBackgroundImage in C++ I searched if it is possible to get it in python interface but I haven't get good result. I Tried opencv 3.0.0-dev because it has BackgroundSubtractorMOG2 implementation, but help() function don't document method implementation for background model. Do you know if there is undocumented implementation? I searched how to edit opencv source to implement a python

OpenCV: how to use createBackgroundSubtractorMOG

由 人盡茶涼 提交于 2019-11-28 18:21:57
I was trying to go through this tutorial på OpenCV.org: http://docs.opencv.org/trunk/doc/tutorials/video/background_subtraction/background_subtraction.html#background-subtraction The MOG pointer is initialized as Ptr<BackgroundSubtractor> pMOG; //MOG Background subtractor and in main, it is used in the following manner: pMOG = createBackgroundSubtractorMOG(); However, this yields the following error: Error: Identifier "createBackgroundSubtractorMOG" is undefined Also, when the background model is to be updated, the following command is used: pMOG->apply(frame, fgMaskMOG); Which in turn yields
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