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Median Filter
The Median Filter applies a rank filter
which selects the 50th percentile ranked pixel from within the
local neighborhood. This filter is used to remove high-frequency
information and noise from an image, a process known as
"smoothing". The median filter does not calculate a replacement
value by combining neighborhood values but, rather, selects one of
the neighborhood values to use as the replacement.
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The Median Filter command opens from the
Image Window > Process >
Filters menu and  button
on the Main Toolbar. The "immediate"
form, shown first, opens when an image or image set is displayed in
the top-most window. The general form can be used to select source
images from folders, windows, or by matching templates.
Median Filter
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Profile
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Selects the parameter profile for this command and
allows you to save or work with existing presets.
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[Select]
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Opens the
Select Source Images dialog to choose images
from an image window, folder, files, name template, or a Mira File
List.
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Width
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Specifies the width of the median filter
neighborhood in terms of pixels along the horizontal (row)
direction.
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Height
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Specifies the height of the median filter
neighborhood in terms of pixels along the vertical (column)
direction.
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Source Region
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Specifies the rectangular region to be processed.
The options are as follows:
Entire image: The
entire image is processed.
Image Cursor: The
region to be processed is selected using the Image Cursor.
Rectangle: The
region specified by Min
andMax limits for Column and Row
coordinates is processed.
Column and Row, Min and
Max: When Rectangle is
selected, these values specify the column and row limits to be
processed.
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Related Topics
Filtering Images
Despeckling Filter
Rank Filter
Minimum Filter
Maximum Filter
Mira Pro x64 8.83 User's Guide, Copyright Ⓒ 2026 Mirametrics, Inc.
All Rights Reserved.
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