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Radial Profile Properties
Radial Profile Properties control
computation and display of
radial profile plots. This tool is closely related to
the
FWHM Measurements tool, as the FWHM calculation is
made as part of the radial profile plot. These properties can be
changed globally, to make default settings for new image windows,
or locally, to affect radial plots only from the specific window.
The default properties dialog uses a profile control to save and
recall parameter sets for use by future image windows. Local
properties affect only the specific
Image Window for which they are changed.
 
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Radial Profile Properties
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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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FWHM Properties
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Fitting Radius
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Sets the radius over which the Point Spread
Function is fit
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 Auto Centroid
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Check this box to cause the Radial Profile to be
computed using a centroid position as its center. If not checked,
the Radial Profile uses the image cursor position as its
center.
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[Advanced]
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Opens the
PSF Fit Properties dialog for setting advanced
fitting properties. See below.
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Centroid Properties
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Centroid on
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Selects the direction of intensity profile used
for calculating centroid positions. This is measured from the pixel
values and is not affected by the choice of display settings, such
as the palette or contrast.
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 Positive Points
Negative Points
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Selects whether to centroid on positive-going
values (peaks) or negative-going values (valleys).
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Sample Radius
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Defines the distance from the target point within
which pixel data are used to compute the centroid position. A
reasonable radius value is approximately half the diameter of a
point source image.
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Tracking Radius
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Defines the maximum distance from the current
position that Mira will search in the next image to lock onto a new
position. This is only used when tracking objects through an
Image Set.
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Related Topics
Setting Application Properties
Radial Profile Plot
PSF Fit Properties
FWHM Measurements
FWHM Properties
Mira Pro x64 User's Guide, Copyright Ⓒ 2023 Mirametrics, Inc. All
Rights Reserved.
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