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Given the following image, How can I detect black bullets (90 bullet) in this image using C#, EmguCV or AForge? I tried to use GetPixel(x,y) method but it checks only pixel by pixel, it is very slow and I need to detect the bullets not pixels. Algorithm/Idea 1 You can divide your image in squares as shown in this sample: With this logic you only have to check every 20th pixel. As soon as you know where the first dot is, you will know that every other dot have to be in the same horizontal line (in your provided sample). A sample algorithm would look similar to this (please note that it need

I used Accord.net (AForge) for connect to the webcam and record video But stored videos is slow motion ... this my project : using AForge.Video; using AForge.Video.DirectShow; using AForge.Video.FFMPEG; using System; using System.Drawing; using System.IO; using System.Threading; using System.Windows.Forms; namespace CaptureWebcam { public partial class Form1 : Form { private VideoCaptureDeviceForm captureDevice; private string path = Path.GetDirectoryName(Application.ExecutablePath) + @"\Videos\"; private FilterInfoCollection videoDevice; private VideoCaptureDevice videoSource; private

How to detect Non Moving Blobs from a video? Let's consider I have a video and a initial background frame bitmap. Is that possible to detect an blob/object which is NOT MOVING ? and draw a rectangle around that Object? This reminds me of an algorithm to detect forgotten objects on a subway. If I'm not wrong you want to detect objects that are not moving AND that were not on the initial background right? You can apply this approach: With an initial image like this (couldn't find a truly empty subway image): And an image with an added static object (the waste can), the subway moving, and a

I am creating a simple Multi-layered feed forward Neural Network using AForge.net NN library. My NN is a 3 Layered Activation Network trained with Supervised Learning approach using BackPropogation Learning algorithm. Following are my initial settings: //learning rate learningRate=0.1; //momentum value momentum=0; //alpha value for bipolar sigmoid activation function sigmoidAlphaValue=2.0; //number of inputs to network inputSize=5; //number of outputs from network predictionSize=1; //iterations iterations=10000; // create multi-layer neural network ActivationNetwork network = new

I am playing a videofile(.wmv)using videosourceplayer .I am able to stop videoplayer but when i start it ,it starts from the beginning but not from the current frame.How can i achieve the pause and resume playback of the video 来源： https://stackoverflow.com/questions/27738369/how-to-pause-a-video-file-played-using-videosourceplayer