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annotate Core/Images/ImageAccessor.h @ 2487:be1dbb1dcdd6

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PixelTraits and ImageTraits
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 13 Mar 2018 16:29:20 +0100
parents 878b59270859
children 9b4251721f22
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #pragma once
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35
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36 #include "../Enumerations.h"
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37
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38 #include <string>
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39 #include <stdint.h>
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40
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41 namespace Orthanc
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42 {
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43 class ImageAccessor
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44 {
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45 private:
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46 template <Orthanc::PixelFormat Format>
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47 friend struct ImageTraits;
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48
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49 bool readOnly_;
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50 PixelFormat format_;
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51 unsigned int width_;
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52 unsigned int height_;
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53 unsigned int pitch_;
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54 uint8_t *buffer_;
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55
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56 template <typename T>
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57 const T& GetPixelUnchecked(unsigned int x,
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58 unsigned int y) const
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59 {
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60 const uint8_t* row = reinterpret_cast<const uint8_t*>(buffer_) + y * pitch_;
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61 return reinterpret_cast<const T*>(row) [x];
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62 }
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63
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64
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65 template <typename T>
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66 T& GetPixelUnchecked(unsigned int x,
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67 unsigned int y)
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68 {
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69 uint8_t* row = reinterpret_cast<uint8_t*>(buffer_) + y * pitch_;
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70 return reinterpret_cast<T*>(row) [x];
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71 }
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72
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73 public:
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74 ImageAccessor()
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75 {
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76 AssignEmpty(PixelFormat_Grayscale8);
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77 }
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78
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79 virtual ~ImageAccessor()
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80 {
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81 }
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82
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83 bool IsReadOnly() const
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84 {
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85 return readOnly_;
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86 }
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87
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88 PixelFormat GetFormat() const
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89 {
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90 return format_;
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91 }
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92
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93 unsigned int GetBytesPerPixel() const
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94 {
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95 return ::Orthanc::GetBytesPerPixel(format_);
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96 }
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97
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98 unsigned int GetWidth() const
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99 {
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100 return width_;
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101 }
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102
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103 unsigned int GetHeight() const
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104 {
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105 return height_;
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106 }
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107
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108 unsigned int GetPitch() const
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109 {
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110 return pitch_;
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111 }
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112
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113 unsigned int GetSize() const
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114 {
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115 return GetHeight() * GetPitch();
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116 }
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117
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118 const void* GetConstBuffer() const
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119 {
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120 return buffer_;
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121 }
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122
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123 void* GetBuffer() const;
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124
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125 const void* GetConstRow(unsigned int y) const;
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126
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127 void* GetRow(unsigned int y) const;
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128
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129 void AssignEmpty(PixelFormat format);
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130
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131 void AssignReadOnly(PixelFormat format,
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132 unsigned int width,
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133 unsigned int height,
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134 unsigned int pitch,
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135 const void *buffer);
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136
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137 void AssignWritable(PixelFormat format,
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138 unsigned int width,
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139 unsigned int height,
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140 unsigned int pitch,
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141 void *buffer);
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142
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143 void ToMatlabString(std::string& target) const;
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144
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145 ImageAccessor GetRegion(unsigned int x,
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146 unsigned int y,
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147 unsigned int width,
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148 unsigned int height) const;
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a89ca69ec1d1 ImageAccessor::SetFormat
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1922
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149
a89ca69ec1d1 ImageAccessor::SetFormat
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1922
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150 void SetFormat(PixelFormat format);
798
e1d27ee2114a ImageAccessor abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
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151 };
e1d27ee2114a ImageAccessor abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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152 }