.. _glossary:

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Glossary
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..   :sorted:

.. glossary::

    aliasing
        When adjacent periodic frequency responses from a discrete sampled
        signal or image overlap producing a distortion.

    basis function
        In mathematics, a basis function is an element of a particular basis
        for a function space. Every continuous function in the function
        space can be represented as a linear combination of basis functions,
        just as every vector in a vector space can be represented as a
        linear combination of basis vectors. Source: Wikipedia

    frequency
        The rate at which something occurs or is repeated over a 
        particular period of time or in a given sample.

    imload
        Load an image from a file into MATLAB.

    pixel-cycle
        A set of linear image pixels that correlate to a periodic function,
        such as :math:`\sin`, :math:`\cos`, or square wave, traversing one
        cycle. The set of pixels in a pixel-cycle should show periodicity
        with respect to relatively light and dark pixels.  See
        :ref:`image_fequency`.