that use std::vector in addition to dlib::array.

with the mapping functions necessary at each layer to support these routines.

visit_layers_range().

Add an overload of dnn_trainer::train_one_step that takes a pair of
iterators rather than a std::vector.

singular value of the input matrix rather than as an absolute tolerance.

calling code.

are empty, leading to MATLAB complaining about output arguments to being
assigned.

tiled_pyramid_to_image().

test_box_overlap so they are less confusing and vague.

from objects that are implicitly convertible to a loss details object
just like you can for computational layers.

alias tensors.  Now any kind of tensors are supported.

environments.