Robust Face Detection in C/C++?

c algorithm computer-vision face-detection
mpen picture mpen · May 25, 2009 · Viewed 15.6k times · Source

I'm looking for a robust face detection algorithm/library, preferably in C (C++ is okay too; other languages I can port if necessary). I've used OpenCV's implementation in the past, but I don't think it's invariant to rotation. Doesn't need to be real-time, but it shouldn't be horrendously slow either (maybe one or two seconds per photo is fine). Looking for high reliability, and not a lot of false positives. Does anyone know of any good implementations?

Answer

Amro picture Amro · Sep 27, 2009

Check out this page on OpenCV Wiki about face detection using Haar-like features.

@floppydisk: The same guy posted another project implementing these Haar-like features for face detection.

The concept is not hard to understand and you could even implement it by yourself. Perhaps the most difficult part is constructing the cascade of boosted classifiers (but openCV has all of that readily implemented!)

Some other methods that can be used in face detection which can be made invariant to affine transformations include:

Related questions

Printing prime numbers from 1 through 100

This c++ code prints out the following prime numbers: 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97. But I don't think that's the way my book wants it to be written. It mentions something about square root of a number. So I did try changing my 2nd loop …

Read More
How to reverse a singly linked list using only two pointers?

I wonder if there exists some logic to reverse a singly-linked list using only two pointers. The following is used to reverse the single linked list using three pointers namely p, q, r: struct node { int data; struct node *link; }; …

Read More
hash function for string

I'm working on hash table in C language and I'm testing hash function for string. The first function I've tried is to add ascii code and use modulo (%100) but i've got poor results with the first test of data: 40 collisions …

Read More