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darkprocessor.h
1 /*
2  SPDX-FileCopyrightText: 2016 Jasem Mutlaq <[email protected]>
3 
4  SPDX-License-Identifier: GPL-2.0-or-later
5 */
6 
7 #pragma once
8 
9 #include "indi/indicamera.h"
10 #include "indi/indidustcap.h"
11 #include "darkview.h"
12 #include "defectmap.h"
13 #include "ekos/ekos.h"
14 
15 #include <QFutureWatcher>
16 
17 class TestDefects;
18 class TestSubtraction;
19 
20 namespace Ekos
21 {
22 
23 /**
24  * @brief The DarkProcessor class
25  *
26  * Denoises a light image by either subtracting a dark frame or applying a defect map.
27  *
28  * The primary denoise function searches first for defect maps that matches the criteria of the passed parameters.
29  * These include sensor binning, size, temperature, and date. If a defect map is found, then it is loaded from disk and all the bad
30  * pixels are treated with a 3x3 median filter. If no defect map is found, it searches for suitable dark frames and if any is found then
31  * a simple subtraction is applied.
32  *
33  * @author Jasem Mutlaq
34  * @version 1.0
35  */
36 class DarkProcessor : public QObject
37 {
38  Q_OBJECT
39  public:
40  explicit DarkProcessor(QObject *parent = nullptr);
41 
42  // Perform defect correction or dark subtraction
43  void denoise(ISD::CameraChip *targetChip, const QSharedPointer<FITSData> &targetData, double duration,
44  uint16_t offsetX, uint16_t offsetY);
45 
46 
47  private:
48 
49  // Denoise Internal
50  bool denoiseInternal();
51  void processDenoiseResult();
52 
53  ////////////////////////////////////////////////////////////////////////////////////////////////
54  /// Subtraction Functions
55  ////////////////////////////////////////////////////////////////////////////////////////////////
56 
57  /**
58  * @brief subtractHelper Calls tempelated subtract function
59  * @param darkData passes dark frame data to templerated subtract function.
60  * @param lightData passes list frame data to templerated subtract function.
61  * @param offsetX passes offsetX to templerated subtract function.
62  * @param offsetY passes offsetY to templerated subtract function.
63  */
64  void subtractDarkData(const QSharedPointer<FITSData> &darkData, const QSharedPointer<FITSData> &lightData,
65  uint16_t offsetX, uint16_t offsetY);
66 
67  /**
68  * @brief subtract Subtracts dark pixels from light pixels given the supplied parameters
69  * @param darkData Dark frame data.
70  * @param lightData Light frame data. The light frame data is modified in this process.
71  * @param offsetX Only apply subtraction beyond offsetX in X-axis.
72  * @param offsetY Only apply subtraction beyond offsetY in Y-axis.
73  */
74  template <typename T>
75  void subtractInternal(const QSharedPointer<FITSData> &darkData, const QSharedPointer<FITSData> &lightData,
76  uint16_t offsetX, uint16_t offsetY);
77 
78  ////////////////////////////////////////////////////////////////////////////////////////////////
79  /// Defect Map Functions
80  ////////////////////////////////////////////////////////////////////////////////////////////////
81 
82  /**
83  * @brief normalizeDefects Remove defects from LIGHT image by replacing bad pixels with a 3x3 median filter around
84  * them.
85  * @param defectMap Defect Map containing a list of hot and cold pixels.
86  * @param lightData Target light data to remove noise from.
87  * @param offsetX Only apply filtering beyond offsetX in X-axis.
88  * @param offsetY Only apply filtering beyond offsetX in Y-axis.
89  */
90  void normalizeDefects(const QSharedPointer<DefectMap> &defectMap, const QSharedPointer<FITSData> &lightData,
91  uint16_t offsetX, uint16_t offsetY);
92 
93  template <typename T>
94  void normalizeDefectsInternal(const QSharedPointer<DefectMap> &defectMap, const QSharedPointer<FITSData> &lightData,
95  uint16_t offsetX, uint16_t offsetY);
96 
97  template <typename T>
98  T median3x3Filter(uint16_t x, uint16_t y, uint32_t width, T *buffer);
99 
100  signals:
101  void darkFrameCompleted(bool);
102  void newLog(const QString &message);
103 
104  private:
105  QFutureWatcher<bool> m_Watcher;
106  struct
107  {
108  ISD::CameraChip *targetChip;
109  QSharedPointer<FITSData> targetData;
110  double duration;
111  uint16_t offsetX;
112  uint16_t offsetY;
113  } info;
114 
115 
116  // Testing
117  friend class ::TestDefects;
118  friend class ::TestSubtraction;
119 
120 };
121 
122 }
123 
Q_OBJECTQ_OBJECT
Ekos is an advanced Astrophotography tool for Linux. It is based on a modular extensible framework to...
Definition: align.cpp:70
The DarkProcessor class.
Definition: darkprocessor.h:36
QObject * parent() const const
QString message
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