From 46eaef925f60d6681cca8b2a8017415c7c6f172d Mon Sep 17 00:00:00 2001
From: Jean-Yves TINEVEZ <jean-yves.tinevez@pasteur.fr>
Date: Sat, 4 Jul 2020 22:40:35 +0200
Subject: [PATCH] Also center points before fitting the 2D ellipse.
---
src/fit_ellipse_2d.m | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/fit_ellipse_2d.m b/src/fit_ellipse_2d.m
index 26575d6..c994b89 100644
--- a/src/fit_ellipse_2d.m
+++ b/src/fit_ellipse_2d.m
@@ -4,6 +4,9 @@ function [ f, Q ] = fit_ellipse_2d( p, method )
if nargin < 2
method = 'direct';
end
+
+ c = mean( p );
+ p = p - repmat( c, size( p, 1 ), 1 );
switch( lower( method ) )
@@ -14,6 +17,8 @@ function [ f, Q ] = fit_ellipse_2d( p, method )
end
f = quadratic_to_cartesian2( Q );
+ f( 1 ) = f( 1 ) + c( 1 );
+ f( 2 ) = f( 2 ) + c( 2 );
%% Subfunctions
--
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