Are there any OK image recognition libraries for .NET?

Question

I want to be able to compare an image taken from a webcam to an image stored on my computer. The library doesn't need to be one hundred percent accurate as it won't be used in anything mission critical (e.g. police investigation), I just want something OK I can work with. I have tried a demonstration project for Image Recognition from CodeProject, and it only works with small images / doesn't work at all when I compare an exact same image 120x90 pixels (this is not classified as OK :P ). Has there been any success with image recognition before? If so, would you be able to provide a link to a library I could use in either C# or VB.NET? JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

You could try this: http://code.google.com/p/aforge/ It includes a comparison analysis that will give you a score. There are many other great imaging features of all types included as well. // The class also can be used to get similarity level between two image of the same size, which can be useful to get information about how different/similar are images: // Create template matching algorithm's instance // Use zero similarity to make sure algorithm will provide anything ExhaustiveTemplateMatching tm = new ExhaustiveTemplateMatching(0); // Compare two images TemplateMatch[] matchings = tm.ProcessImage( image1, image2 ); // Check similarity level if (matchings[0].Similarity > 0.95) { // Do something with quite similar images }