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839
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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 "PrecompiledHeadersUnitTests.h"
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34 #include "gtest/gtest.h"
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35
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842
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36 #if ORTHANC_JPEG_LOSSLESS_ENABLED == 1
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37
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840
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38 #include <dcmtk/dcmjpls/djlsutil.h>
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39 #include <dcmtk/dcmjpls/djdecode.h>
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843
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40 #include <dcmtk/dcmdata/dcfilefo.h>
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840
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41
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843
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42 #include <dcmtk/dcmjpls/djcodecd.h>
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844
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43 #include <dcmtk/dcmjpls/djcparam.h>
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44 #include <dcmtk/dcmjpeg/djrplol.h>
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45 #include <dcmtk/dcmdata/dcstack.h>
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46 #include <dcmtk/dcmdata/dcpixseq.h>
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843
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47
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48 #include "../OrthancServer/ParsedDicomFile.h"
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49 #include "../OrthancServer/FromDcmtkBridge.h"
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844
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50 #include "../OrthancServer/ToDcmtkBridge.h"
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51 #include "../Core/OrthancException.h"
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52 #include "../Core/ImageFormats/ImageBuffer.h"
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53 #include "../Core/ImageFormats/PngWriter.h"
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54
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55 #include <boost/lexical_cast.hpp>
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839
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56
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57 using namespace Orthanc;
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58
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59 TEST(JpegLossless, Basic)
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60 {
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844
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61 //DJLSDecoderRegistration::registerCodecs( EJLSUC_default, EJLSPC_restore,OFFalse );
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843
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62
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63 #if 0
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844
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64 // Fallback
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65
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843
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66 std::string s;
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67 Toolbox::ReadFile(s, "IM-0001-1001-0001.dcm");
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68
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69 ParsedDicomFile parsed(s);
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70 DcmFileFormat& dicom = *reinterpret_cast<DcmFileFormat*>(parsed.GetDcmtkObject());
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71
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72 DcmDataset* dataset = dicom.getDataset();
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73
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74 dataset->chooseRepresentation(EXS_LittleEndianExplicit, NULL);
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75
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76 if (dataset->canWriteXfer(EXS_LittleEndianExplicit))
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77 {
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78 printf("ICI\n");
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79
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80 parsed.SaveToFile("tutu.dcm");
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81
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82 // decompress data set if compressed
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83 dataset->chooseRepresentation(EXS_LittleEndianExplicit, NULL);
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84
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85 DcmXfer original_xfer(dataset->getOriginalXfer());
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86 std::cout << original_xfer.getXferName() << std::endl;
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87
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88 FromDcmtkBridge::ExtractPngImage(s, *dataset, 1, ImageExtractionMode_Preview);
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89 //fileformat.saveFile("test_decompressed.dcm", EXS_LittleEndianExplicit);
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90 }
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91 #else
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92 DcmFileFormat fileformat;
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93 //if (fileformat.loadFile("IM-0001-1001-0001.dcm").good())
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94 if (fileformat.loadFile("tata.dcm").good())
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95 {
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96 DcmDataset *dataset = fileformat.getDataset();
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97
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98 // <data-set xfer="1.2.840.10008.1.2.4.80" name="JPEG-LS Lossless">
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99
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100 DcmTag k(DICOM_TAG_PIXEL_DATA.GetGroup(),
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101 DICOM_TAG_PIXEL_DATA.GetElement());
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102
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103 DcmElement *element = NULL;
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104 if (dataset->findAndGetElement(k, element).good())
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105 {
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106 DcmPixelData& pixelData = dynamic_cast<DcmPixelData&>(*element);
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107 DcmPixelSequence* pixelSequence = NULL;
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108 if (pixelData.getEncapsulatedRepresentation
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109 (dataset->getOriginalXfer(), NULL, pixelSequence).good())
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110 {
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111 OFString value;
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112
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113 if (!dataset->findAndGetOFString(ToDcmtkBridge::Convert(DICOM_TAG_COLUMNS), value).good())
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114 {
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115 throw OrthancException(ErrorCode_BadFileFormat);
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116 }
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117
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118 unsigned int width = boost::lexical_cast<unsigned int>(value.c_str());
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119
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120 if (!dataset->findAndGetOFString(ToDcmtkBridge::Convert(DICOM_TAG_ROWS), value).good())
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121 {
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122 throw OrthancException(ErrorCode_BadFileFormat);
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123 }
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124
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125 unsigned int height = boost::lexical_cast<unsigned int>(value.c_str());
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126
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127 if (!dataset->findAndGetOFString(ToDcmtkBridge::Convert(DICOM_TAG_BITS_STORED), value).good())
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128 {
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129 throw OrthancException(ErrorCode_BadFileFormat);
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130 }
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131
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132 unsigned int bitsStored = boost::lexical_cast<unsigned int>(value.c_str());
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133
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134 if (!dataset->findAndGetOFString(ToDcmtkBridge::Convert(DICOM_TAG_PIXEL_REPRESENTATION), value).good())
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135 {
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136 throw OrthancException(ErrorCode_BadFileFormat);
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137 }
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138
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139 bool isSigned = (boost::lexical_cast<unsigned int>(value.c_str()) != 0);
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843
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140
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141 unsigned int samplesPerPixel = 1; // By default
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142 if (dataset->findAndGetOFString(ToDcmtkBridge::Convert(DICOM_TAG_SAMPLES_PER_PIXEL), value).good())
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143 {
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144 samplesPerPixel = boost::lexical_cast<unsigned int>(value.c_str());
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145 }
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146
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147 ImageBuffer buffer;
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148 buffer.SetHeight(height);
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149 buffer.SetWidth(width);
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843
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150
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151 if (bitsStored == 8 && samplesPerPixel == 1 && !isSigned)
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152 {
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153 buffer.SetFormat(PixelFormat_Grayscale8);
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154 }
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155 else if (bitsStored == 8 && samplesPerPixel == 3 && !isSigned)
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156 {
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157 buffer.SetFormat(PixelFormat_RGB24);
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158 }
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159 else if (bitsStored == 16 && samplesPerPixel == 1 && !isSigned)
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160 {
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161 buffer.SetFormat(PixelFormat_Grayscale16);
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162 }
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163 else if (bitsStored == 16 && samplesPerPixel == 1 && isSigned)
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164 {
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165 buffer.SetFormat(PixelFormat_SignedGrayscale16);
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166 }
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167 else
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168 {
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169 throw OrthancException(ErrorCode_NotImplemented);
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170 }
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171
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172 ImageAccessor accessor(buffer.GetAccessor());
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173
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174 // http://support.dcmtk.org/docs/classDJLSLosslessDecoder.html
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175 DJLSLosslessDecoder bb; DJLSCodecParameter cp;
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176 //DJLSNearLosslessDecoder bb; DJLSCodecParameter cp;
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177
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178 Uint32 startFragment = 0; // Default
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179 OFString decompressedColorModel; // Out
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180 DJ_RPLossless rp;
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181 OFCondition c = bb.decodeFrame(&rp, pixelSequence, &cp, dataset, 0, startFragment,
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182 accessor.GetBuffer(), accessor.GetSize(), decompressedColorModel);
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183
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184
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185
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186 for (unsigned int y = 0; y < accessor.GetHeight(); y++)
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187 {
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188 int16_t *p = reinterpret_cast<int16_t*>(accessor.GetRow(y));
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189 for (unsigned int x = 0; x < accessor.GetWidth(); x++, p ++)
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190 {
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191 if (*p < 0)
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192 *p = 0;
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193 }
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194 }
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195
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196 PngWriter w;
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197 w.WriteToFile("tata.png", accessor);
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198 }
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843
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199 }
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200 }
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201
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202 #endif
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203
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204
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205 //DJLSDecoderRegistration::cleanup();
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206 }
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842
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207
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208
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209 #endif
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