95 lines
2.3 KiB
C++
95 lines
2.3 KiB
C++
/*
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* This file is part of RawTherapee.
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*
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* RawTherapee is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* RawTherapee is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with RawTherapee. If not, see <http://www.gnu.org/licenses/>.
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*
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* 2010 Ilya Popov <ilia_popov@rambler.ru>
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*/
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#ifndef WAVELET_DEC_H_INCLUDED
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#define WAVELET_DEC_H_INCLUDED
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#include <cstddef>
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#include "wavelet_level.h"
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namespace rtengine {
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class wavelet_decomposition
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{
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public:
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typedef float internal_type;
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private:
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static const int maxlevels = 8;
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int nlevels;
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size_t m_w, m_h;
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size_t m_w1, m_h1;
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wavelet_level<internal_type> * m_c[maxlevels];
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public:
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template<typename E>
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wavelet_decomposition(E ** src, size_t w, size_t h);
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~wavelet_decomposition();
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template<typename E, typename L>
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void reconstruct(E ** dst, const int * c, L & limiter);
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};
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//////////////////////////////////////////////////////////////////////////////
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template<typename E>
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wavelet_decomposition::wavelet_decomposition(E ** src, size_t w, size_t h)
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: nlevels(0), m_w(w), m_h(h), m_w1(0), m_h1(0)
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{
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m_w1 = w;
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m_h1 = h;
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m_c[0] = new wavelet_level<internal_type>(src, m_w1, m_h1);
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nlevels = 1;
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while(nlevels < maxlevels)
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{
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m_c[nlevels] = new wavelet_level<internal_type>(m_c[nlevels - 1]->lowfreq(), m_c[nlevels-1]->lfw(), m_c[nlevels-1]->lfh());
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nlevels ++;
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}
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}
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template<typename E, typename L>
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void wavelet_decomposition::reconstruct(E ** dst, const int * c, L & l)
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{
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noop<internal_type> n;
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for(int level = nlevels - 1; level > 0; level--)
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{
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int alpha = 1024 + 10 * c[level];
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m_c[level]->reconstruct(m_c[level-1]->lowfreq(), alpha, n);
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}
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int alpha = 1024 + 10 * c[0];
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m_c[0]->reconstruct(dst, alpha, l);
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}
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};
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#endif
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