emgucv

问题 I have an image of a "windows control" lets say a Text-box and I want to get background color of the text written within the text box by finding max color occurred in that picture by pixel color comparison. I searched in google and I found that every one is talking about histogram and also some code is given to find out histogram of an image but no one described the procedure after finding histogram. the code I found on some sites is like // Create a grayscale image Image<Gray, Byte> img =

问题 The current docs here says: Creating a New Project in Visual Studio To use the framework in Visual Studio, you need to Download and extract the binary files package Emgu.CV.Windows.Binary-{version}.zip For a Full guide to using the dependencies under Visual Studio and C# see the C# Tutorial. There is no link. I cannot find a download location for Emgu.CV.Windows.Binary-{version}.zip in my case it would be emgu.cv.windows.binary-4.3.0.3890.zip. I can't find this file anywhere including my hard

问题 I am using EMGU.CV 3.4.1.2976 (latest) library to analyze images but I am not getting the results I expect. I benchmark against ImageJ but any image package should do. To test functionality, I am analyzing a simple blue 640x320 jpeg like below. The RGB value for this image is 0,0,255. Hue histogram from ImageJ (value is 170, count 2048000) Using code below I get a spike at 120 instead of the 170 - count 2048000 is correct though. What am I doing wrong? public void AnalyzeEmgu(object image) {

问题 i am using the new EmguCV 3.0.0 alpha to detect a chessboard with webcam and have an understanding problem with the corners matrix. Size patternSize = new Size(5, 4); Matrix<float> corners = new Matrix<float>(1, 2); bool find = CvInvoke.FindChessboardCorners(grayFrame, patternSize, corners, CalibCbType.AdaptiveThresh | CalibCbType.FilterQuads); CvInvoke.DrawChessboardCorners(grayFrame, patternSize, corners, find); if (find) { Console.Write(corners.Size); } The chessboard will be detected and

问题 i am using the new EmguCV 3.0.0 alpha to detect a chessboard with webcam and have an understanding problem with the corners matrix. Size patternSize = new Size(5, 4); Matrix<float> corners = new Matrix<float>(1, 2); bool find = CvInvoke.FindChessboardCorners(grayFrame, patternSize, corners, CalibCbType.AdaptiveThresh | CalibCbType.FilterQuads); CvInvoke.DrawChessboardCorners(grayFrame, patternSize, corners, find); if (find) { Console.Write(corners.Size); } The chessboard will be detected and

问题 Is there any function in OpenCV or Emgu CV desktop capture options? (addons, libs, classes) So I know we can capture camera in a very easy way, is there any option for desktop capturing that way? 回答1: I would recommend doing a screen capture outside of Emgu (ie, in non-Emgu C++/C#). The first step is to create a bitmap from the screen image. There are plenty of websites detailing methods of how to do this. I found this one helpful. Once you have a bitmap, it's easy to create new Emgu Image<,>

问题 Is there any function in OpenCV or Emgu CV desktop capture options? (addons, libs, classes) So I know we can capture camera in a very easy way, is there any option for desktop capturing that way? 回答1: I would recommend doing a screen capture outside of Emgu (ie, in non-Emgu C++/C#). The first step is to create a bitmap from the screen image. There are plenty of websites detailing methods of how to do this. I found this one helpful. Once you have a bitmap, it's easy to create new Emgu Image<,>

问题 Is there a way to show a Mat object inside a WPF image tag in c#? Mat image= CvInvoke.Imread(op.FileName, Emgu.CV.CvEnum.ImreadModes.AnyColor); Also, is there a way to draw on the image inside the canvas/image tag, instead of the new window that Imshow opens? CvInvoke.Imshow("ponaredek", slika); And lastly, for a begginer, which is better to use? EmguCV or regular openCV? 回答1: If you want to show the image that you read in inside of your WPF, than you could use an image source, which is found

问题 I want to assign the value to each pixel of Mat in EmguCV using C#. I have read the documentation but doesn't find any way to do this. I have able to do this with Image but I want to do this with Mat . So, can anyone please tell me how to do this. 回答1: In EmguCV you can use Data method to get the value of each pixel but as per written in Documentation you cannot reallocate it. What I get to know from your question is that you want to put the color value of each pixel to variable of Mat class.

问题 I'm doing a very simple program on EMGU CV, so I need to take a screenshot of what my camera is recording and save it in a specific folder, here follows my code of camera capture: ImageViewer viewer = new ImageViewer(); VideoCapture capture = new VideoCapture(); Application.Idle += new EventHandler(delegate (object sender, EventArgs e) { viewer.Image = capture.QueryFrame(); }); viewer.ShowDialog(); I apologize for the simple terms, I still really noob in programming. 回答1: It seems like you