Added wavelet equalizer module

rtengine/wavelet_dec.cc

@@ -0,0 +1,62 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  RawTherapee is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  RawTherapee 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  2010 Ilya Popov <ilia_popov@rambler.ru>
+ */
+
+#include "wavelet_dec.h"
+
+namespace rtengine
+{
+
+wavelet_decomposition::wavelet_decomposition(unsigned short ** src, size_t w, size_t h)
+: nlevels(0), m_w(w), m_h(h), m_w1(0), m_h1(0)
+{
+    m_w1 = w;
+    m_h1 = h;
+    
+    m_c[0] = new wavelet_level<internal_type>(src, m_w1, m_h1);
+    nlevels = 1;
+    
+    while(nlevels < maxlevels)
+    {
+        m_c[nlevels] = new wavelet_level<internal_type>(m_c[nlevels - 1]->lowfreq(), m_c[nlevels-1]->lfw(), m_c[nlevels-1]->lfh());
+        nlevels ++;
+    }
+}
+
+wavelet_decomposition::~wavelet_decomposition()
+{
+    for(int i = 0; i < nlevels; i++)
+    {
+        delete m_c[i];
+    }
+}
+
+void wavelet_decomposition::reconstruct(unsigned short ** dst, const int * c)
+{
+    for(int level = nlevels - 1; level > 0; level--)
+    {
+        int alpha = 1024 + 10 * c[level];
+        m_c[level]->reconstruct(m_c[level-1]->lowfreq(), alpha);
+    }
+    
+    int alpha = 1024 + 10 * c[0];
+    m_c[0]->reconstruct(dst, alpha, wavelet_level<internal_type>::CLIP);
+}
+
+};
+