From 146c741e69949a80a715719722e7d7dd2193427e Mon Sep 17 00:00:00 2001
From: aakashapoorv <aakash.apoorv@outlook.com>
Date: Tue, 29 Oct 2013 20:36:38 +0800
Subject: [PATCH] Implemented public float grayscale

Changed greyscale to grayscale and implemented grayscale.
Grayscale and luma, both represents brightness in an image.
So we are using luma = 0.2126*Red + 0.7152*Green + 0.0722*Blue

R. W. G. Hunt, M. R. Pointer 2011, Measuring Colour 4th Edition
---
 Framework/PressPlay.FFWD/Color.cs | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/Framework/PressPlay.FFWD/Color.cs b/Framework/PressPlay.FFWD/Color.cs
index 6ed5781d..bd468b40 100644
--- a/Framework/PressPlay.FFWD/Color.cs
+++ b/Framework/PressPlay.FFWD/Color.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 
 namespace PressPlay.FFWD
 {
@@ -57,12 +57,11 @@ public byte A
             }
         }
 
-        public float greyscale
+        public float grayscale
         {
             get
             {
-                // TODO: Implement this
-                throw new NotImplementedException("Not implemented");
+                return (float)((0.2126*r) + (0.7152*g) + (0.0722*b));
             }
         }