comments and help improvedHEADmaster

1 files changed, 14 insertions, 10 deletions

diff --git a/striperemoval.m b/striperemoval.m
index 7563bf0..8c2f623 100644
--- a/striperemoval.m
+++ b/striperemoval.m
@@ -1,13 +1,17 @@
 function [img_cleaned]=striperemoval(img, varargin)
-% Cleans an image from the stripes produced by interference fringes.
-%  img - image with stripes to be removed
-%  varargin - not used, it is here for compatibility
+%STRIPEREMOVAL  removes interference fringes/stripes from an image.
+%  [img_cleaned]=STRIPEREMOVAL(img, varargin)
+%     img - image with stripes to be removed
+%     varargin - not used, it is here for compatibility
 % By Eugeniy E. Mikhailov 2014/11/25
 % 
-% be aware of "slow" spatial stripes their Fourier components will overlap with Gaussian.
-% Such parallel fringes appears like strong isolated peaks in the Fourier transformed image.
-% What is even nice they appear symmetrical with respect to origin but not symmetrical to 
-% fold
+% Be aware of "slow" spatial stripes 
+% i.e. stripes with characteristic width comparable to the Gaussian beam.
+% Their Fourier components will overlap with Gaussian.
+
+% Fringes appear like strong isolated peaks in the Fourier transformed image.
+% What is even nicer they appear symmetrically with respect to origin but not symmetrical to 
+% the fold with respect to X or Y axes. See figure below
 %
 %                 ^
 %                 |
@@ -15,13 +19,13 @@ function [img_cleaned]=striperemoval(img, varargin)
 %                 |
 %                oOo
 %   -------------O0O-------------->
-%                oOo <- gaussian beam fft
+%                oOo <- Gaussian beam fft
 %                 |
-%                 | * <- stripe fft peak
+%                 | * <- stripes fft peak
 %                 |
 %
 %
-% so it easy to clean them, especially if their spatial frequency is high.
+% So it easy to clean them, especially if their spatial frequency is high.
 %
 
 img_fourier=fftshift(fft2(img)); % move to Fourier space