emgucv

I've got an image that I've scanned, but the white paper is not white on the screen. Is there a way to equalize the contract/brightness to make the background whiter? Update I've tried the suggested Image._EqualizeHist function from EmguCv: string file = @"IMG_20120512_055533.jpg"; Image<Bgr, byte> originalColour = new Image<Bgr, byte>(file); Image<Bgr, byte> improved = originalColour.Clone(); improved._EqualizeHist(); But get an even worse result (also when first gray scaled): Am I missing other parameters? Abid Rahman K I have discussed some techniques here : How can I adjust contrast in

I need Haar Cascades xml files for Mouth, Eyes & Nose. Do provide me useful links. Any kind of help would be highly appreciated. Look at this page: http://alereimondo.no-ip.org/OpenCV/34 There are haar cascades for eyes, nose and mouth :) I believe they are in the EmguCV package when you download it. Can't remember exact directory but do a search for *.xml. Edit Found the location. Get the emgucv zip file then they're in... .\opencv\data I imagine you can get these straight from their SVN as well Saad Bilal This will help. Contains all haar cascade for eye, face and nose: https://github.com

What's the best set of image preprocessing operations to apply to images for text recognition in EmguCV? I've included two sample images here . Applying a low or high pass filter won't be suitable, as the text may be of any size. I've tried median and bilateral filters, but they don't seem to affect the image much. The ideal result would be a binary image with all the text white, and most of the rest black. This image would then be sent to the OCR engine. Thanks There's nothing like the best set . Keep in mind that digital images can be acquired by different capture devices and each device can

I am working on one application where I want to use IP camera for displaying video streaming and and some other major operations on image captured by the IP Camera . Libraries used in Camera capture For Camera Capture : Emgu.CV Library Below is the code which I am using in C#. Variable Declaration private Capture capture; //takes images from camera as image frames private Emgu.CV.UI.ImageBox img; // Dynamic Picture Controls private int nCam; // no of cameras Code for Processing Image private void ProcessFrame(object sender, EventArgs arg) { try { // Live Streaming Display Image<Bgr, Byte>

I'm trying to get video from IP camera in emgu, I could display video in the browser from " http://169.254.255.253 " IP, but how could I display this from emgu? please, it's essential for me. Kerberos Capture _Capture = new Emgu.CV.CvInvoke.cvCreateFileCapture("http://username:pass@cam_address/axis-cgi/mjpg/video.cgi?resolution=640x480&req_fps=30&.mjpg"); I didn't test but may be this code snippet or approach can help you. For OpenCV example you can examine this page: OpenCV with Network Cameras And you can examine this method's wiki page: http://www.emgu.com/wiki/files/2.3.0/document/html

I created imageHolder class: public class ImageHolder : Image<Bgr, Byte> { private String imagePath; public ImageHolder(String path):base(path) { this.imagePath = path; } public String imgPathProperty { get { return imagePath; } set { imagePath = value; } } } I create instance of the class and initialize it,like this: private ImageHolder originalImageHolder; originalImageHolder = new ImageHolder(openFileDialog.FileName); In runtime i get this exception: The type initializer for 'Emgu.CV.CvInvoke' threw an exception. Here is Solution Explorer window: Any idea why i get this exception and how

I have 2 consecutive images from a camera and I want to estimate the change in camera pose: I calculate the optical flow: Const MAXFEATURES As Integer = 100 imgA = New Image(Of [Structure].Bgr, Byte)("pic1.bmp") imgB = New Image(Of [Structure].Bgr, Byte)("pic2.bmp") grayA = imgA.Convert(Of Gray, Byte)() grayB = imgB.Convert(Of Gray, Byte)() imagesize = cvGetSize(grayA) pyrBufferA = New Emgu.CV.Image(Of Emgu.CV.Structure.Gray, Byte) _ (imagesize.Width + 8, imagesize.Height / 3) pyrBufferB = New Emgu.CV.Image(Of Emgu.CV.Structure.Gray, Byte) _ (imagesize.Width + 8, imagesize.Height / 3) features

As you know OpenCV is very useful library that let you do amazing and powerful things in Computer vision. So I passed a good time to figure out how to use it in Unity3d, I had many problems, and searching in the Net, I have found several suggestions but not one worked for me. I’m using a Unity Pro 4.0 This version of Emgu CV (emgucv-windows-universal-gpu 2.4.9.1847) My target for unity project is: windows and not web player jam This is what I did for everyone who want to use it: Install this version of EmguCV, which creates a folder EMGU in C: In this folder you will have a single folder named