pyiqa.matlab_utils.math_util
============================

.. py:module:: pyiqa.matlab_utils.math_util

.. autoapi-nested-parse::

   Mathematical utilities

   Created by: https://github.com/tomrunia/PyTorchSteerablePyramid/blob/master/steerable/math_utils.py

   Modified by: Jiadi Mo (https://github.com/JiadiMo)





Module Contents
---------------

.. py:function:: abs(x)

.. py:function:: roll_n(X, axis, n)

.. py:function:: batch_fftshift2d(x)

   Args:
   x: An complex tensor. Shape :math:`(N, C, H, W)`.
   Pytroch version >= 1.8.0


.. py:function:: batch_ifftshift2d(x)

   :param x: An input tensor. Shape :math:`(N, C, H, W, 2)`.

   :returns: An complex tensor. Shape :math:`(N, C, H, W)`.


.. py:function:: prepare_grid(m, n)

.. py:function:: rcosFn(width, position)

.. py:function:: pointOp(im, Y, X)

.. py:function:: getlist(coeff)