From 7fb90644d38cfe801e4ab74cee934d7229c903e8 Mon Sep 17 00:00:00 2001
From: Alberto Griggio <agriggio@users.noreply.github.com>
Date: Sat, 27 Oct 2018 15:25:38 +0200
Subject: [PATCH] dehaze: tweak epsilon to avoid artifacts in corner cases

---
 rtengine/ipdehaze.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rtengine/ipdehaze.cc b/rtengine/ipdehaze.cc
index 92eaa4062..fecc73e7d 100644
--- a/rtengine/ipdehaze.cc
+++ b/rtengine/ipdehaze.cc
@@ -282,7 +282,7 @@ void ImProcFunctions::dehaze(Imagefloat *img)
     }
 
     const int radius = patchsize * 4;
-    const float epsilon = 1e-7;
+    const float epsilon = 1e-5;
     array2D<float> &t = t_tilde;
 
     {