add crop Face to jpeg ( cropFaceToJpeg ) method.

[curioustushar]

add method crop Face to jpeg which return image with only face ( jpeg format )
Source :- http://www.codediesel.com/algorithms/face-detection-in-images-using-php/

[alex-topface]

probably it should be

imagecopy($canvas, $this->canvas, 0, 0, $this->face['x'], $this->face['y'], $this->face['w'], $this->face['w']);

[alex-topface]

Hello guys! I'm interested in having this #23 merged in. Is there any possibility to have this done?
@mauricesvay @cse-tushar

[mauricesvay]

Hi @alex-topface, I'm not sure this function should be the responsibility of the face detection class. Is there a specific reason for adding it?

[alex-topface]

Hi Maurice,
why do you think it shouldn't? It already has functions getFace to detect face and toJpeg to print the red border over the face.
In my project I'd like to compare faces. So I use this class for detecting them. But even if I manage to get face coordinates, I can't extract the face, becouse the canvas variable has the protected access.

As for me the best solution is to use the code that can extract the face to another file. I can place the new pull request that fixes the error I posted above and has the possibility to print the result (extracted face) eigther to std out, as it done for now, or to specified file.

Will you be able to accept such PR and create a new release tag?

Thanks, Alex.

[mauricesvay]

Alright, sounds ok. I'll merge and create a new release when you update the PR.

[alex-topface]

Thanks!

[mauricesvay]

Fixed by #25