polaroid-pp

commit ed4f8fe990d4cf78c2c8e082386a76020d2eaaeb
parent fdf9c3291016ea6857af590e00b5e08ef19bb8b1
Author: Fabian Wermelinger <fabianw@mavt.ethz.ch>
Date:   Sun,  1 May 2016 23:34:58 +0200

added gamma correction filter

Diffstat:
A
apps/polaroidCamera/GammaCorrection.h
 | 
28
++++++++++++++++++++++++++++

1 file changed, 28 insertions(+), 0 deletions(-)
diff --git a/apps/polaroidCamera/GammaCorrection.h b/apps/polaroidCamera/GammaCorrection.h
@@ -0,0 +1,28 @@
+// File       : GammaCorrection.h
+// Date       : Sun 01 May 2016 11:22:38 PM CEST
+// Author     : Fabian Wermelinger
+// Description: Gamma Correction Filter
+// Copyright 2016 ETH Zurich. All Rights Reserved.
+#ifndef GAMMACORRECTION_H_4SYE23BR
+#define GAMMACORRECTION_H_4SYE23BR
+
+#include <cmath>
+#include "ArgumentParser.h"
+
+class GammaCorrection
+{
+private:
+    ArgumentParser& m_parser;
+
+public:
+    GammaCorrection(ArgumentParser& parser) : m_parser(parser) {}
+
+    inline Real operator()(const Real v) const
+    {
+        const Real gamma = m_parser("-gamma").asDouble(1.0);
+        const Real A     = m_parser("-gammaA").asDouble(1.0);
+        return A*std::pow(v, gamma);
+    }
+};
+
+#endif /* GAMMACORRECTION_H_4SYE23BR */