How to train software so it recognize the kind of object shown in a picture ?

Question

I want to detect one kind of object such as person in the picture, who can tell me how to training a kind of people classifier for use,so we can use the classifier to detect people in any picture.

Answer 1

It's a pretty vague question but i think you're looking for a good computer vision library. The gold standard is OpenCV (Open Source Computer Vision). That'll get you started, and there's lots of people that have done facial recognition with it.

If you want to tell two people apart, that's a hugely more complicated problem. You'll likely use some of the same tools, but you'll need much more complicated algos.

Answer 2

you can take a look at viola-jones framework: Viola-Jones Object Detection Framework at Wikipedia

it's cvHaarDetectObjects() in OpenCV.