Method const_image_view

dlib/image_processing/generic_image.h:377–384

        using pixel_type = pixel_type_t<image_type>;

        const_image_view(
            const image_type& img
        ) : 
            _data(reinterpret_cast<const char*>(image_data(img))), 
            _width_step(width_step(img)),
            _nr(num_rows(img)),
            _nc(num_columns(img))
        {}

        long nr() const { return _nr; }
        long nc() const { return _nc; }