.. _example_plot_l1_lagrangian_fb.py:


=================================================================
Basis Pursuit Denoising with Forward-Backward : CS Regularization
=================================================================

Test the use of Forward-backward-like splitting for the resolution of a
compressed sensing regularization



.. image:: images/plot_l1_lagrangian_fb_1.png
    :align: center


**Script output**::

  [fb]: Performed 1000 iterations in 0.147185087204seconds.
  [fista]: Performed 1000 iterations in 0.164345979691seconds.
  [nesterov]: Performed 1000 iterations in 0.285757064819seconds.



**Python source code:** :download:`plot_l1_lagrangian_fb.py <plot_l1_lagrangian_fb.py>`

.. literalinclude:: plot_l1_lagrangian_fb.py
    :lines: 9-