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annotate Core/ImageFormats/ImageProcessing.cpp @ 860:80c7e53a69b5 jpeg

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bugfix
author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 07 Jun 2014 10:32:15 +0200
parents 610a9a1ed855
children 5a125d587810
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #include "../PrecompiledHeaders.h"
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34 #include "ImageProcessing.h"
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35
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36 #include "../OrthancException.h"
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37
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38 #include <cassert>
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39 #include <string.h>
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40 #include <limits>
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41 #include <stdint.h>
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42
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43 #include <stdio.h>
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44
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45 namespace Orthanc
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46 {
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47 template <typename TargetType, typename SourceType>
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48 static void ConvertInternal(ImageAccessor& target,
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49 const ImageAccessor& source)
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50 {
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51 const TargetType minValue = std::numeric_limits<TargetType>::min();
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52 const TargetType maxValue = std::numeric_limits<TargetType>::max();
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53
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54 for (unsigned int y = 0; y < source.GetHeight(); y++)
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55 {
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56 TargetType* t = reinterpret_cast<TargetType*>(target.GetRow(y));
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57 const SourceType* s = reinterpret_cast<const SourceType*>(source.GetConstRow(y));
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58
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59 for (unsigned int x = 0; x < source.GetWidth(); x++, t++, s++)
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60 {
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61 if (static_cast<int32_t>(*s) < static_cast<int32_t>(minValue))
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62 {
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63 *t = minValue;
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64 }
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65 else if (static_cast<int32_t>(*s) > static_cast<int32_t>(maxValue))
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66 {
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67 *t = maxValue;
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68 }
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69 else
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70 {
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71 *t = static_cast<TargetType>(*s);
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72 }
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73 }
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74 }
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75 }
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76
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77
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78
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79 void ImageProcessing::Copy(ImageAccessor& target,
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80 const ImageAccessor& source)
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81 {
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82 if (target.GetWidth() != source.GetWidth() ||
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83 target.GetHeight() != source.GetHeight())
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84 {
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85 throw OrthancException(ErrorCode_IncompatibleImageSize);
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86 }
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87
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88 if (target.GetFormat() != source.GetFormat())
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89 {
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90 throw OrthancException(ErrorCode_IncompatibleImageFormat);
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91 }
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92
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93 unsigned int lineSize = GetBytesPerPixel(source.GetFormat()) * source.GetWidth();
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94
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95 assert(source.GetPitch() >= lineSize && target.GetPitch() >= lineSize);
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96
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97 for (unsigned int y = 0; y < source.GetHeight(); y++)
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98 {
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99 memcpy(target.GetRow(y), source.GetConstRow(y), lineSize);
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100 }
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101 }
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102
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103
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104 void ImageProcessing::Convert(ImageAccessor& target,
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105 const ImageAccessor& source)
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106 {
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107 if (target.GetWidth() != source.GetWidth() ||
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108 target.GetHeight() != source.GetHeight())
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109 {
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110 throw OrthancException(ErrorCode_IncompatibleImageSize);
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111 }
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112
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113 if (source.GetFormat() == target.GetFormat())
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114 {
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115 Copy(target, source);
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116 return;
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117 }
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118
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119 if (target.GetFormat() == PixelFormat_Grayscale16 &&
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120 source.GetFormat() == PixelFormat_Grayscale8)
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121 {
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122 ConvertInternal<uint16_t, uint8_t>(target, source);
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123 return;
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124 }
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125
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126 if (target.GetFormat() == PixelFormat_SignedGrayscale16 &&
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127 source.GetFormat() == PixelFormat_Grayscale8)
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128 {
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129 ConvertInternal<int16_t, uint8_t>(target, source);
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130 return;
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131 }
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132
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133 if (target.GetFormat() == PixelFormat_Grayscale8 &&
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134 source.GetFormat() == PixelFormat_Grayscale16)
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135 {
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136 ConvertInternal<uint8_t, uint16_t>(target, source);
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137 return;
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138 }
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139
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140 if (target.GetFormat() == PixelFormat_SignedGrayscale16 &&
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141 source.GetFormat() == PixelFormat_Grayscale16)
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142 {
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143 ConvertInternal<int16_t, uint16_t>(target, source);
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144 return;
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145 }
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146
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147 if (target.GetFormat() == PixelFormat_Grayscale8 &&
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148 source.GetFormat() == PixelFormat_SignedGrayscale16)
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149 {
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150 ConvertInternal<uint8_t, int16_t>(target, source);
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151 return;
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152 }
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153
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154 if (target.GetFormat() == PixelFormat_Grayscale16 &&
610a9a1ed855 ImageProcessing::Convert
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155 source.GetFormat() == PixelFormat_SignedGrayscale16)
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156 {
610a9a1ed855 ImageProcessing::Convert
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157 ConvertInternal<uint16_t, int16_t>(target, source);
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158 return;
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159 }
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160
854
ff530685e46a fast version of image copy
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161 throw OrthancException(ErrorCode_NotImplemented);
853
839be3022203 DicomImageInformation
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162 }
854
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163
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164
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165 void ImageProcessing::ShiftRight(ImageAccessor& image,
ff530685e46a fast version of image copy
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166 unsigned int shift)
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167 {
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168 if (image.GetWidth() == 0 ||
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169 image.GetHeight() == 0 ||
ff530685e46a fast version of image copy
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170 shift == 0)
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171 {
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172 // Nothing to do
ff530685e46a fast version of image copy
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173 return;
ff530685e46a fast version of image copy
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174 }
ff530685e46a fast version of image copy
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175
ff530685e46a fast version of image copy
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176 throw OrthancException(ErrorCode_NotImplemented);
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177 }
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178
853
839be3022203 DicomImageInformation
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179 }