1 /*
2  * * Copyright (C) 2006-2011 Anders Brander <anders@brander.dk>,
3  * * Anders Kvist <akv@lnxbx.dk> and Klaus Post <klauspost@gmail.com>
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License
7  * as published by the Free Software Foundation; either version 2
8  * of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
18  */
19 
20 #ifndef complexfilter_h__
21 #define complexfilter_h__
22 #include "complexblock.h"
23 #include "floatimageplane.h"
24 
25 namespace RawStudio {
26 namespace FFTFilter {
27 
28 class FFTWindow;
29 
30 class ComplexFilter
31 {
32 public:
33   ComplexFilter(int block_width, int block_height);
34   ComplexFilter(const ComplexFilter& p);
35   virtual ~ComplexFilter(void);
36   void process(ComplexBlock* block);
37   virtual void setSharpen( float sharpen, float sigmaSharpenMin, float sigmaSharpenMax, float scutoff );
38   virtual gboolean skipBlock();
39 protected:
40   virtual void processNoSharpen(ComplexBlock* block) = 0;
41   virtual void processSharpen(ComplexBlock* block) = 0;
42   const int bw;
43   const int bh;
44   const float norm; // Normalization factor
45   float lowlimit;
46   float sharpen;
47   float sigmaSquaredSharpenMin;
48   float sigmaSquaredSharpenMax;
49   FloatImagePlane *sharpenWindow;
50 };
51 
52 class DeGridComplexFilter : public ComplexFilter
53 {
54 public:
55   DeGridComplexFilter(int block_width, int block_height, float degrid, FFTWindow *window, fftwf_plan plan_forward);
56   virtual ~DeGridComplexFilter(void);
57 protected:
58   virtual void processSharpenOnly(ComplexBlock* block);
59 #if defined (__i386__) || defined (__x86_64__)
60   void processSharpenOnlySSE(ComplexBlock* block);
61   void processSharpenOnlySSE3(ComplexBlock* block);
62 #endif
63   const float degrid;
64   FFTWindow *window;
65   ComplexBlock* grid;
66 };
67 
68 class ComplexWienerFilter : public ComplexFilter
69 {
70 public:
71   ComplexWienerFilter(int block_width, int block_height, float beta, float sigma);
72   virtual ~ComplexWienerFilter(void);
73   virtual gboolean skipBlock();
74 protected:
75   virtual void processNoSharpen(ComplexBlock* block);
76   virtual void processSharpen(ComplexBlock* block);
77   float sigmaSquaredNoiseNormed;
78 };
79 
80 class ComplexWienerFilterDeGrid : public DeGridComplexFilter
81 {
82 public:
83   ComplexWienerFilterDeGrid(int block_width, int block_height, float beta, float sigma, float degrid, fftwf_plan plan, FFTWindow *window);
84   virtual ~ComplexWienerFilterDeGrid(void);
85   virtual gboolean skipBlock();
86 protected:
87   virtual void processNoSharpen(ComplexBlock* block);
88   virtual void processSharpen(ComplexBlock* block);
89 #if defined (__i386__) || defined (__x86_64__)
90   virtual void processSharpen_SSE3(ComplexBlock* block);
91   virtual void processSharpen_SSE(ComplexBlock* block);
92   virtual void processNoSharpen_SSE(ComplexBlock* block);
93   virtual void processNoSharpen_SSE3(ComplexBlock* block);
94 #endif
95   float sigmaSquaredNoiseNormed;
96   FFTWindow *window;
97 };
98 
99 class ComplexPatternFilter : public ComplexFilter
100 {
101 public:
102   ComplexPatternFilter(int block_width, int block_height, float beta, FloatImagePlane* pattern, float pattern_strength );
103   virtual ~ComplexPatternFilter(void);
104   virtual gboolean skipBlock();
105 protected:
106   virtual void processNoSharpen(ComplexBlock* block);
107   virtual void processSharpen(ComplexBlock* block);
108   FloatImagePlane* pattern;
109   const float pfactor;
110 };
111 
112 
113 class ComplexFilterPatternDeGrid : public DeGridComplexFilter
114 {
115 public:
116   ComplexFilterPatternDeGrid(int block_width, int block_height, float beta, float sigma, float degrid, fftwf_plan plan, FFTWindow *window, FloatImagePlane *pattern);
117   virtual ~ComplexFilterPatternDeGrid(void);
118   virtual gboolean skipBlock();
119 protected:
120   virtual void processNoSharpen(ComplexBlock* block);
121   virtual void processSharpen(ComplexBlock* block);
122   float sigmaSquaredNoiseNormed;
123   FloatImagePlane *pattern;
124 };
125 
126 }} // namespace RawStudio::FFTFilter
127 
128 #endif // complexfilter_h__
129