aforge

I am about to start a project in visual image-processing and have no had experience with Matlab, Aforge, OpenCV and was wondering if anyone had any experiences with these different software packages. I was also wondering which of the three packages were most efficient I assume OpenCV but has anyone had any experience? Thanks Jamie. The question you need to ask yourself is which is more important - your time or the computer's time. If your task is really simple, you may be able to code it up in MATLAB and have it work right off the bat. MATLAB is by far the easiest for development - a scripted

I'm developing a routine for automatic enhancement of scanned 35 mm slides. I'm looking for a good algorithm for increasing contrast and removing color cast. The algorithm will have to be completely automatic, since there will be thousands of images to process. These are a couple of sample images straight from the scanner, only cropped and downsized for web: I'm using the AForge.NET library and have tried both the HistogramEqualization and ContrastStretch filters. HistogramEqualization is good for maximizing local contrast but does not produce pleasing results overall. ContrastStretch is way

I do not understand why the volume defined frequency is not as expected. I send sounds to my microphone with a few specified frequencies in turn. I then do FFT of my microphone buffer. On exit of FFT, I have an array of complex numbers. To know the volume of sound on the defined frequency, I look at my array, the number of element in this array I get this way: MyFrequency = n*SamplingRate/SizeOfArray. Next, I get the magnitude of complex number (sqrt(Re^2+Im^2) If I'm right, this shows me the volume of sound on this frequency. But this value changes strongly, depending on the frequency. If I'm

I'm developing an application in C#, and I developed a library that does some stuff with Aforge cameras. One of the points is to simply capture images of what is in front of the Web Cam and show it on a specific PictureBox to do so: camera.NewFrame += NewFrame; private void NewFrame(object sender, NewFrameEventArgs args) { Bitmap newFrame = new Bitmap(args.Frame); args.Frame.Dispose(); PictureBox.FromBitmapImage(newFrame); newFrame.Dispose(); newFrame = null; } What I do here, I get every frame and paint it into the PictureBox . My doubt is: In some computers, this way of painting produces a

I'm writing an WPF application where I need to show a Webcam feed. I was able to do this easly with the AForge framework.But when I've changed from a computer to a another computer the same code doesn't work the same way. In the first one the webcam feed works perfectly, but in the other one this does't occur, the feed has a lot of delay, and the application doesn't work properly. Here is the code: private void video_NewFrame(object sender, NewFrameEventArgs eventArgs) { Bitmap img = (Bitmap)eventArgs.Frame.Clone(); this.Dispatcher.Invoke(System.Windows.Threading.DispatcherPriority.Render,

I have 400 sequence images. I want to create from them video file ( clip .. mpeg ) I download the 'AForge.NET' and i try to look into it to see if it possible - but i don't fine any way to do it. How can i do it ? Look up the documentation , find the VideoFileWriter Class , look at it's members , see the WriteVideoFrame method(s) , read the line : "Write new video frame into currently opened video file.". Bingo. Half way there. If you can't connect the dots when reading the methods' signature ( WriteVideoFrame(Bitmap) ) or don't understand how to use the Open() overloads or Close() method (why