OOF2: The Manual

OOF.Image.Modify.ReduceNoise
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Name

OOF.Image.Modify.ReduceNoise — Reduce noise while preserving edges.

Synopsis

OOF.Image.Modify.ReduceNoise(image,radius)

Details

  • Parent Menu: OOF.Image.Modify
  • Callback: function doImageMod in module ooflib.image.imagemodifier

  • Parameters:

    image
    Type: The path to an existing Image object.
    radius
    Size of the pixel neighborhood. Type: A real number.

Description

Smooth the contours of an image while still preserving edge information. The algorithm works by replacing each pixel with its neighbor closest in value. The neighbors of a pixel are defined as those pixels within the given radius, specified in units of the pixel size. A suitable radius will be chosen automatically if radius is zero.

This routine comes from the ImageMagick library.

Figure 6.38. Reducing Noise in an Image

Reducing Noise in an Image

A micrograph of Si3N4 (courtesy of C.-H. Hsueh), with noise added.

Reducing Noise in an Image

The result of applying ReduceNoise with radius=0, so that the neighborhood radius is chosen automatically.

Reducing Noise in an Image

The result of applying ReduceNoise with radius=4.


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