Face Detection and return Coordinates

A software to run both Windowns and Mac, without interface or preferences screen for adjustments. The software will run 100% in background. I need it in two languages: JavaScript, C or C++ The JavaScript will call the C program passing a parameter (file path). The C or C++ will read the file and return to the JavaScript a array with the result. The software will read an image, find all faces and return all faces coordinates. See the image 001 So the array you will return: [x1, y1, x2, y2] If you find a picture with more than one face, you will also return only one array with the sum of all boundaries. See image 002 So the blue score represents the sum of the two green squares. The software have to consider onli faces on foccus.