Best way to store image into container

[UlrichVonRekkenin]

Hi there,

As we know array2d is a basic image object. But this one has deleted constructor and operator.
So you can not do this one:

    dlib::array2d<dlib::rgb_pixel> source;
    dlib::load_image(source, path);
    std::vector frames2(10, source); // <- compile error

But there is matrix which allows to do this:

    dlib::matrix<dlib::rgb_pixel> image;
    dlib::load_image(image, path);
    std::vector frames1(10, image); // <- Ok

Solution for first one is allocate vector through resize or constructor then assign_image into loop.