From 7684da80d75563ba48bb7a58efa7433d9a90b7bf Mon Sep 17 00:00:00 2001
From: Epicalert <epicalert@protonmail.com>
Date: Sun, 4 Jul 2021 03:43:23 +0800
Subject: [PATCH] Mention paper used for pupil tracking in comments

---
 src/eye.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/eye.cpp b/src/eye.cpp
index 0dd5fe2..051e0d9 100644
--- a/src/eye.cpp
+++ b/src/eye.cpp
@@ -1,5 +1,8 @@
 #include <eye.hpp>
 
+// This pupil tracking algorithm is based on the paper
+// "ACCURATE EYE CENTRE LOCALISATION BY MEANS OF GRADIENTS"
+// by Fabian Timm  and  Erhardt Barth. Thanks!
 
 float objectiveFunction(cv::Point2f c, cv::Mat gX, cv::Mat gY) {
 	float sum = 0;