OOF2: The Manual
| OOF.Image.Modify.MedianFilter | ||
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6.2. Menus |  |
Name
OOF.Image.Modify.MedianFilter — Reduce noise by replacing each pixel color with the median over a local region.
Synopsis
OOF.Image.Modify.MedianFilter(image, radius)
Details
- Parent Menu: OOF.Image.Modify
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Callback: function
doImageModin moduleooflib.image.imagemodifier -
Parameters:
image- Type: The path to an existing
Imageobject. radius- Radius of the median filter in units of the pixel size. Type: Integer.
Description
Reduce noise in an image with a median filter. This replaces the
value of each pixel with the median value in a circle of the given
radius centered on the pixel. The
radius is in units of the pixel size. For a
color image, each RGB channel is filtered independently.
This routine calls the skimage.filters.median from the
scikit-image library.
Figure 6.38. Applying a Median Filter to an Image
The leftmost image is a 200×200 pixel micrograph of
Si3N4 (courtesy
of C.-H. Hsueh). The second image is the same micrograph with
noise added. The third and fourth images are the results of
applying MedianFilter to the noisy image,
with the given values of radius.
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| OOF.Image.Modify.Gray |  |
OOF.Image.Modify.Negate |