0.16.0
======

Adds a way to run ``ImageSimulator`` in reverse, turning simulated output back
into reflectance or pixel values, along with clearer rules for interpolated
``Scenario`` inputs, a couple of hang fixes, and dependency updates for security.

Updates / New Features
----------------------

* Added a reverse pass to ``ImageSimulator``. The new
  ``photoelectrons_to_reflectance`` and ``photoelectrons_to_pixels`` methods
  take the output of ``simulate_image`` and turn it back into reflectance or
  display pixels. The result accounts for the sensor's calibration, so the
  same scene shot by two different sensors comes out comparable.
  ``photoelectrons_to_pixels`` also has a ``mode="minmax"`` option that
  stretches each image on its own. That is handy for eyeballing a single
  scene, but avoid it when you need to compare across sensors.

* Made the interpolation rules for ``Scenario`` clearer. With ``interp=True``,
  ``altitude`` and ``ground_range`` can be any value inside the MODTRAN
  tables, not just the exact points listed. With ``interp=False`` they still
  have to match an exact entry.

* Updated dependencies to clear a few security advisories.

Fixes
-----

* ``apply_convolution`` no longer hangs on a flat, uniform-gray image.

* ``apply_noise`` now raises a ``RuntimeError`` with a helpful message when the
  input contains ``NaN`` or ``Inf`` values, instead of hanging quietly.