Tuesday, 5 July 2016

Face Detection


                            Face Detection

I have seen an article about the HAAR classifier .which inspires me to work on image processing. image processing nothing but convert the image and video to digital form, digital form to arrays by using these arrays with some logic we can perform some actions that can change the features of the image/video.
Haar classifier is the best and effective object detection method proposed by Paul Viola and Michael Jones. cascade function is  trained by positive and negative images.Haar classifier is developed using Haar wavelets  .this wave lets is similar to fourier transformations if you want to know more about the Haar wavelets and classifiers just open the links below:
With the knowledge of these we can make or train our own Haar classifier.

Here in this project I try to detect the face, eyes for which I use the existing classifier I found it when I Google about the classifier. We can use four edge detection rather than the classifier but it is not as accurate as Haar classifier and object detection not easy in four edge detection so I opt for haar classifier.

Let’s start our project:
Here i used the recorded video,we can use the live stream video also.we need to import the classifier and need to write small logic to draw shape on the feature that is recognized by haar classifier we can observe through below image how this classifier is working .



You’re always welcome to give me your valuable suggestion through comments, if you need more information regarding this please leave a comment so that I can answer you.



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