From a5b180ac9add950fbfcb6a6f54621a2e120acfa2 Mon Sep 17 00:00:00 2001
From: popow <popow@gmx.de>
Date: Mon, 2 Jul 2018 18:34:19 +0200
Subject: [PATCH] fixed rounding issue in calculating the luminance

---
 .../Normalization/HistogramEqualizationProcessor.cs           | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ImageSharp/Processing/Normalization/HistogramEqualizationProcessor.cs b/src/ImageSharp/Processing/Normalization/HistogramEqualizationProcessor.cs
index 0036b5dc95..aa1526c87c 100644
--- a/src/ImageSharp/Processing/Normalization/HistogramEqualizationProcessor.cs
+++ b/src/ImageSharp/Processing/Normalization/HistogramEqualizationProcessor.cs
@@ -106,12 +106,12 @@ namespace SixLabors.ImageSharp.Processing.Normalization
             if (is16bitPerChannel)
             {
                 sourcePixel.ToRgb48(ref rgb48);
-                luminance = (int)((.2126F * rgb48.R) + (.7152F * rgb48.G) + (.0722F * rgb48.B));
+                luminance = Convert.ToInt32((.2126F * rgb48.R) + (.7152F * rgb48.G) + (.0722F * rgb48.B));
             }
             else
             {
                 sourcePixel.ToRgb24(ref rgb24);
-                luminance = (int)((.2126F * rgb24.R) + (.7152F * rgb24.G) + (.0722F * rgb24.B));
+                luminance = Convert.ToInt32((.2126F * rgb24.R) + (.7152F * rgb24.G) + (.0722F * rgb24.B));
             }
 
             return luminance;