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annotate OrthancFramework/Sources/Images/ImageProcessing.h @ 4529:5774fe497ff2

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fix decoding of images on big-endian architectures
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 24 Feb 2021 21:06:34 +0100
parents fd958175c5b9
children 7053502fbf97
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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) 2017-2021 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 Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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22
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23 #pragma once
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24
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25 #include "../OrthancFramework.h"
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26
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27 #include "ImageAccessor.h"
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28
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29 #include <vector>
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30 #include <stdint.h>
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31 #include <boost/noncopyable.hpp>
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32
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33 namespace Orthanc
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34 {
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35 class ORTHANC_PUBLIC ImageProcessing : public boost::noncopyable
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36 {
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37 public:
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38 class ORTHANC_PUBLIC ImagePoint
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39 {
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40 private:
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41 int32_t x_;
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42 int32_t y_;
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43
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44 public:
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45 ImagePoint(int32_t x,
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46 int32_t y);
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47
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48 int32_t GetX() const;
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49
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50 int32_t GetY() const;
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51
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52 void Set(int32_t x, int32_t y);
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53
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54 void ClipTo(int32_t minX,
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55 int32_t maxX,
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56 int32_t minY,
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57 int32_t maxY);
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58
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59 double GetDistanceTo(const ImagePoint& other) const;
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60
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61 double GetDistanceToLine(double a,
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62 double b,
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63 double c) const; // where ax + by + c = 0 is the equation of the line
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64 };
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65
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66 static void Copy(ImageAccessor& target,
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67 const ImageAccessor& source);
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68
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69 static void Convert(ImageAccessor& target,
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70 const ImageAccessor& source);
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71
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72 static void ApplyWindowing_Deprecated(ImageAccessor& target,
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73 const ImageAccessor& source,
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74 float windowCenter,
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75 float windowWidth,
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76 float rescaleSlope,
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77 float rescaleIntercept,
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78 bool invert);
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79
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80 static void Set(ImageAccessor& image,
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81 int64_t value);
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82
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83 static void Set(ImageAccessor& image,
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84 uint8_t red,
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85 uint8_t green,
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86 uint8_t blue,
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87 uint8_t alpha);
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88
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89 static void Set(ImageAccessor& image,
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90 uint8_t red,
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91 uint8_t green,
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92 uint8_t blue,
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93 ImageAccessor& alpha);
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94
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95 static void ShiftRight(ImageAccessor& target,
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96 unsigned int shift);
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97
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98 static void ShiftLeft(ImageAccessor& target,
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99 unsigned int shift);
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100
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101 static void GetMinMaxIntegerValue(int64_t& minValue,
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102 int64_t& maxValue,
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103 const ImageAccessor& image);
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104
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105 static void GetMinMaxFloatValue(float& minValue,
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106 float& maxValue,
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107 const ImageAccessor& image);
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108
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109 static void AddConstant(ImageAccessor& image,
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110 int64_t value);
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111
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112 // "useRound" is expensive
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113 static void MultiplyConstant(ImageAccessor& image,
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114 float factor,
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115 bool useRound);
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116
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117 // Computes "(x + offset) * scaling" inplace. "useRound" is expensive.
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118 static void ShiftScale(ImageAccessor& image,
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119 float offset,
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120 float scaling,
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121 bool useRound);
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122
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123 static void ShiftScale(ImageAccessor& target,
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124 const ImageAccessor& source,
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125 float offset,
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126 float scaling,
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127 bool useRound);
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128
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129 // Computes "x * scaling + offset" inplace. "useRound" is expensive.
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130 static void ShiftScale2(ImageAccessor& image,
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131 float offset,
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132 float scaling,
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133 bool useRound);
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134
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135 static void ShiftScale2(ImageAccessor& target,
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136 const ImageAccessor& source,
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137 float offset,
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138 float scaling,
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139 bool useRound);
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140
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141 static void Invert(ImageAccessor& image);
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142
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143 static void Invert(ImageAccessor& image, int64_t maxValue);
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144
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145 static void DrawLineSegment(ImageAccessor& image,
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146 int x0,
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147 int y0,
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148 int x1,
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149 int y1,
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150 int64_t value);
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151
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152 static void DrawLineSegment(ImageAccessor& image,
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153 int x0,
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154 int y0,
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155 int x1,
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156 int y1,
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157 uint8_t red,
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158 uint8_t green,
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159 uint8_t blue,
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160 uint8_t alpha);
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161
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162 static void FillPolygon(ImageAccessor& image,
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163 const std::vector<ImagePoint>& points,
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164 int64_t value);
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165
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166 static void Resize(ImageAccessor& target,
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167 const ImageAccessor& source);
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168
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169 static ImageAccessor* Halve(const ImageAccessor& source,
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170 bool forceMinimalPitch);
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171
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172 static void FlipX(ImageAccessor& image);
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173
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174 static void FlipY(ImageAccessor& image);
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175
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176 static void SeparableConvolution(ImageAccessor& image /* inplace */,
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177 const std::vector<float>& horizontal,
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178 size_t horizontalAnchor,
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179 const std::vector<float>& vertical,
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180 size_t verticalAnchor,
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181 bool useRound /* this is expensive */);
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182
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183 static void SmoothGaussian5x5(ImageAccessor& image,
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184 bool useRound /* this is expensive */);
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185
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186 static void FitSize(ImageAccessor& target,
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187 const ImageAccessor& source);
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188
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189 // Resize the image to the given width/height. The resized image
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190 // occupies the entire canvas (aspect ratio is not preserved).
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191 static ImageAccessor* FitSize(const ImageAccessor& source,
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192 unsigned int width,
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193 unsigned int height);
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194
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195 // Resize an image, but keeps its original aspect ratio. Zeros are
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196 // added around the image to reach the specified size.
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197 static ImageAccessor* FitSizeKeepAspectRatio(const ImageAccessor& source,
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198 unsigned int width,
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199 unsigned int height);
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200
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201 // https://en.wikipedia.org/wiki/YCbCr#JPEG_conversion
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202 static void ConvertJpegYCbCrToRgb(ImageAccessor& image /* inplace */);
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203
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204 static void SwapEndianness(ImageAccessor& image /* inplace */);
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205 };
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839be3022203 DicomImageInformation
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206 }