OpenCV tutorial 5: Emgu CV with C#
Why Stack Overflow recommends it
Stack Overflow users link it when helping others set up Emgu CV in C# and follow along with face detection, object tracking and webcam binarization examples.
Recommended by 2 people across 2 different months, 2013 to 2015.
What it is
A 54-minute screencast by Chris Dahms, part of his OpenCV playlist, showing how to install and use Emgu CV (the .NET wrapper for OpenCV) with C# in Visual Studio. It walks through setup and building a webcam-based image processing app. The author notes it is now severely out of date.
What people said
Recommends Shiva · 2014-02 · Stack Overflow · on “emgu c# object tracking moments”
The Canny function is the implementation of an edge detection algorithm ,it uses a multi-stage algorithm to detect a wide range of edges in images. refer to this wikipedia article [LINK] or this tutorial/code [LINK] to understand better. The other part of the question is a bit more tricky as drawing a shape around the tracked object will depend on the quality of the image received after applying the canny edge detection and also the geometry of the object. So you might want to adjust values of the canny function to suit your needs. but you can refer to these youtube video tutorials to better understand/code your object tracking logic. Video 1 [LINK] Video 2 [this video] . Hoping it helps.
Recommends Rajind Ruparathna · 2015-02 · Stack Overflow · on “emgu cv - exception with DetectMultiScale”
Check your emgucv setup according to this [this video] & Try adding 'faces.clear()' line after the rectangle drawing for loop. Otherwise it will use up infinite size eventually.
Cites guensuanhoa · 2013-05 · Stack Overflow · on “Error The type initializer for 'Emgu.CV.CvInvoke' threw an exception with C#, Opencv and EmguCv”
i have writen simple progam to face detectedin VS 2010 in C# using EmguCV but I am getting the following exception: The type initializer for 'Emgu.CV.CvInvoke' threw an exception. im trying to fix this follow link: [LINK] i copied all dll but still error. i use window 7 pro x86, VS 2010, EmguCV2.4.2 and follow this tutorial: [this video] help me!
Cites TJS · 2013-08 · Stack Overflow · on “Emgu: Unable to load DLL. Device is not ready”
I am currently working to get Emgu set up for use on my computer. I have Downloaded a 32 bit installation from sourceforge and installed it. I have created a console project and added the following dll's as references: - Emgu.CV - Emgu.CV.DebuggerVisualizers.VS2010 - Emgu.CV.GPU - Emgu.CV.ML - Emgu.CV.OCR - Emgu.CV.Stitching - Emgu.CV.UI - Emgu.CV.VideoStab - Emgu.Util (I know that I don't need all of these for each project, but I put them in anyway) I also added opencv_core242.dll as well as the other dll's in the same folder to the output folder as this [LINK] answer suggested. I added the folder containing opencv_core242.dll to the as a path variable on my comp like this [this video] video sug
Cites sam · 2014-10 · Stack Overflow · on “emguCV with C# Cannot implicitly & Argument error”
I am tying to use emguCV to detect circle on webcam. i don't have any experience in that and this is first time. i am trying to follow this tutorial [this video] but it seem he using different version -In line 168 Error: Cannot implicitly convert type Emgu.CV.Mat'to 'Emgu.CV.Image' -In line 171 Error Cannot implicitly convert type 'Emgu.CV.Image' to 'Emgu.CV.Image' -In line 173 Error: The best overloaded method match for 'Emgu.CV.Image.HoughCircles(Emgu.CV.Structure.Bgr, Emgu.CV.Structure.Bgr,double, double, int, int)' has some invalid arguments -In same line 173 Error :Argument 1 &2: cannot convert from 'Emgu.CV.Structure.Gray' to 'Emgu.CV.Structure.Bgr these the references I am using from emguC
Cites Smarties · 2015-02 · Stack Overflow · on “Video treatment in Visual Studio with Emgu cv in c#”
I am currently working on a project where I have to do real-time video treatment. The first step consists in binarizing the video. I am using Visual studio with Emgu cv, I've never done c# before so I am struggling a little. I have a problem with opening a video in a Windows Form. I found how to do it in a Windows Media Player but I can't binarize the video inside the Windows Media Player. I found a tutorial on Youtube ( [this video] ) which explains how to binarize a Webcam feed in an ImageBox, but I can't find a way to do this with a video I have on my computer (.wmv). Thank You for your help :)