Posted by
Michael Elbaum on
URL: http://imagej.273.s1.nabble.com/create-image-from-radial-profile-tp5018029p5018031.html
Thanks Herbie,
This is just what I was looking for, to generate a radially symmetric image from a given profile. I have the profile only as a list, though, rather than a function, so it should be interpolated from 1D on "x" to the radius. I vaguely remember seeing something that can do this in ImageJ, but might be imagining.
best,
Michael
________________________________________
From: ImageJ Interest Group [
[hidden email]] on behalf of Herbie [
[hidden email]]
Sent: Sunday, February 05, 2017 14:41
To:
[hidden email]
Subject: Re: create image from radial profile
Dear Michael,
the valuable ImageJ-plugin "Radial Profile" sums the image values on
concentric circles and displays the normalized sums as a function of the
radii of these circles. Consequently, the result is a 1-dimensional
curve with the radius as the abscissa.
Due to the circular summing, this operation can't be reversed or, as
you've put it, it can't be "inverted".
What you may achieve however, is to generate a radially symmetric image
from a profile. If the profile is given analytically you can use
"Process > Math > Macro"
as it was suggested by Jerome Mutterer:
<
http://forum.imagej.net/t/image-generation-donut-with-a-gaussian-cross-section/2379>
Here is his example macro using a shifted Gaussian profile:
newImage( "Image from Profile", "8-bit black", 256, 256, 1 );
run( "Macro...", "v=255*exp(-((d-50)*(d-50)/w)/2)" );
HTH
Herbie
::::::::::::::::::::::::::::::::::::::::::::
Am 05.02.17 um 08:47 schrieb Michael Elbaum:
> Dear list, I'm wondering if there's a plugin available to do the
> "inverse" of the Radial Profile: given a theoretical curve I want to
> simulate an image. thanks, Michael
>
> -- ImageJ mailing list:
http://imagej.nih.gov/ij/list.html>
--
ImageJ mailing list:
http://imagej.nih.gov/ij/list.html--
ImageJ mailing list:
http://imagej.nih.gov/ij/list.html