1 files changed, 55 insertions, 0 deletions
diff --git a/src/graphics/FilterNormalize.cpp b/src/graphics/FilterNormalize.cpp
new file mode 100644
index 0000000..7a27684
--- /dev/null
+++ b/src/graphics/FilterNormalize.cpp
@@ -0,0 +1,55 @@
+//
+//  libavg - Media Playback Engine. 
+//  Copyright (C) 2003-2014 Ulrich von Zadow
+//
+//  This library is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2 of the License, or (at your option) any later version.
+//
+//  This library is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//  Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public
+//  License along with this library; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+//  Current versions can be found at www.libavg.de
+//
+
+#include "FilterNormalize.h"
+#include "FilterIntensity.h"
+
+#include <math.h>
+
+namespace avg {
+
+FilterNormalize::FilterNormalize(int stride)
+    : m_Stride(stride)
+{
+}
+
+FilterNormalize::~FilterNormalize()
+{
+}
+
+void FilterNormalize::applyInPlace(BitmapPtr pBmp)
+{
+    int min;
+    int max;
+    pBmp->getMinMax(m_Stride, min, max);
+    if (m_Stride > 1) {
+        min -= 2;
+        max += 2;
+    }
+    float factor = 255.f/(max-min);
+    if (factor > 10) {
+        factor = 10;
+    }
+    FilterIntensity(-min, factor).applyInPlace(pBmp); 
+}
+
+}
+