private static IEnumerable <Matrix <RgbPixel> > JitterImage(Matrix <RgbPixel> img)
{
// All this function does is make 100 copies of img, all slightly jittered by being
// zoomed, rotated, and translated a little bit differently. They are also randomly
// mirrored left to right.
var rnd = new Rand();
var crops = new List <Matrix <RgbPixel> >();
for (var i = 0; i < 100; ++i)
{
crops.Add(Dlib.JitterImage(img, rnd));
}
return(crops);
}