Name

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    STDDEV_IMAGE

Purpose

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    This function will compute the standard deviation in a local
    neighborhood around each pixel in a greyscale image.

Category

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    Image Processing.

Calling Sequence

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    Result = STDDEV_IMAGE( image, neighborhoodSize )

Inputs

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    image
      A 2-dimensional array containing the greyscale image data
    neighborhoodSize
      A scalar defining both the horizontal and vertical dimension of
      the local neighorhood in which to compute the standard deviation

Keyword Parameters

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    None

Return Value

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    Result is a double precision image, the same dimension as the input,
    containing the neighborhood standard deviation for each pixel.

Side Effects

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    None

Modification History

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    Written by: Philip Salvaggio
    February, 2011 Original code
   

Disclaimer

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    This source code is provided "as is" and without warranties as to performance
    or merchantability. The author and/or distributors of this source code may
    have made statements about this source code. Any such statements do not
    constitute warranties and shall not be relied on by the user in deciding
    whether to use this source code.
    This source code is provided without any express or implied warranties
    whatsoever. Because of the diversity of conditions and hardware under which
    this source code may be used, no warranty of fitness for a particular purpose
    is offered. The user is advised to test the source code thoroughly before
    relying on it. The user must assume the entire risk of using the source code.