edge9_NB3
=========


.. image:: /_static/generated_stimuli/papers.schmittwilken2024.edge9_NB3.png
   :alt: edge9_NB3 stimulus example
   :align: center
   :width: 400px






.. py:function:: stimupy.papers.schmittwilken2024.edge9_NB3(ppd=PPD, contrastID=4)


   Horizontal Cornsweet edge (9 cpd) with narrowband noise (3 cpd).

   :param ppd: Pixels per degree, used for setting the visual size, by default 44.
   :type ppd: float, optional
   :param contrastID: Index to select the RMS contrast of the edge from a predefined set, by default 4 (maximum contrast).
   :type contrastID: int, optional

   :returns: Dictionary with the stimulus (key: "img") and additional keys containing stimulus parameters and experimental data.
   :rtype: dict

   .. rubric:: References

   Schmittwilken, L., Wichmann, F. A., & Maertens, M. (2024).
       Standard models of spatial vision mispredict edge sensitivity at low spatial frequencies.
       Vision Research, 222, 108450. https://doi.org/10.1016/j.visres.2024.108450