Mercurial > hg > orthanc

annotate Core/DicomFormat/DicomIntegerPixelAccessor.cpp @ 1034:7f748bac15e5 Orthanc-0.8.0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
set version
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 10 Jul 2014 15:56:47 +0200
parents 80c7e53a69b5
children 6e7e5ed91c2d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
1 /**
62
a70bb32802ae renaming Server
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 57
diff changeset
2 * Orthanc - A Lightweight, RESTful DICOM Store
689
2d0a347e8cfc switch to 2014
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 627
diff changeset
3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
4 * Belgium
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
5 *
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
6 * This program is free software: you can redistribute it and/or
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
7 * modify it under the terms of the GNU General Public License as
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
8 * published by the Free Software Foundation, either version 3 of the
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
9 * License, or (at your option) any later version.
136
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
10 *
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
11 * In addition, as a special exception, the copyright holders of this
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
12 * program give permission to link the code of its release with the
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
14 * that use the same license as the "OpenSSL" library), and distribute
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
15 * the linked executables. You must obey the GNU General Public License
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
16 * in all respects for all of the code used other than "OpenSSL". If you
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
17 * modify file(s) with this exception, you may extend this exception to
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
18 * your version of the file(s), but you are not obligated to do so. If
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
19 * you do not wish to do so, delete this exception statement from your
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
20 * version. If you delete this exception statement from all source files
fe180eae201d openssl exception
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 107
diff changeset
21 * in the program, then also delete it here.
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
22 *
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
23 * This program is distributed in the hope that it will be useful, but
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
26 * General Public License for more details.
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
27 *
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
28 * You should have received a copy of the GNU General Public License
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
30 **/
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
31
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
32
824
a811bdf8b8eb precompiled headers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 800
diff changeset
33 #include "../PrecompiledHeaders.h"
a811bdf8b8eb precompiled headers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 800
diff changeset
34
6
9d483cf71d17 fix warnings
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2
diff changeset
35 #ifndef NOMINMAX
2
67a6978503b7 fixing Windows build
Jodogne@Laptop
parents: 0
diff changeset
36 #define NOMINMAX
6
9d483cf71d17 fix warnings
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2
diff changeset
37 #endif
9d483cf71d17 fix warnings
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2
diff changeset
38
627
b8f738685ad2 fix for visual studio
jodogne
parents: 537
diff changeset
39 #include "DicomIntegerPixelAccessor.h"
b8f738685ad2 fix for visual studio
jodogne
parents: 537
diff changeset
40
79
297bad4e1019 refactoring
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 78
diff changeset
41 #include "../OrthancException.h"
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
42 #include <boost/lexical_cast.hpp>
2
67a6978503b7 fixing Windows build
Jodogne@Laptop
parents: 0
diff changeset
43 #include <limits>
107
3b45473c0a73 replace boost::locale with iconv for debian
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 80
diff changeset
44 #include <cassert>
368
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
45 #include <stdio.h>
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
46
62
a70bb32802ae renaming Server
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 57
diff changeset
47 namespace Orthanc
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
48 {
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
49 DicomIntegerPixelAccessor::DicomIntegerPixelAccessor(const DicomMap& values,
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
50 const void* pixelData,
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
51 size_t size) :
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
52 information_(values),
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
53 pixelData_(pixelData),
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
54 size_(size)
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
55 {
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
56 frame_ = 0;
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
57 frameOffset_ = (information_.GetHeight() * information_.GetWidth() *
860
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 857
diff changeset
58 information_.GetBytesPerValue() * information_.GetChannelCount());
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
59
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
60 if (information_.GetNumberOfFrames() * frameOffset_ > size)
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
61 {
319
760d0f32cb34 PMSCT_RLE1
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 136
diff changeset
62 throw OrthancException(ErrorCode_BadFileFormat);
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
63 }
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
64
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
65 if (information_.IsSigned())
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
66 {
537
2890721b0f57 comment
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 465
diff changeset
67 // Pixels are signed
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
68 mask_ = (1 << (information_.GetBitsStored() - 1)) - 1;
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
69 signMask_ = (1 << (information_.GetBitsStored() - 1));
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
70 }
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
71 else
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
72 {
537
2890721b0f57 comment
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 465
diff changeset
73 // Pixels are unsigned
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
74 mask_ = (1 << information_.GetBitsStored()) - 1;
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
75 signMask_ = 0;
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
76 }
53
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
77
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
78 if (information_.IsPlanar())
368
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
79 {
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
80 /**
857
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
81 * Each color plane shall be sent contiguously. For RGB images,
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
82 * this means the order of the pixel values sent is R1, R2, R3,
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
83 * ..., G1, G2, G3, ..., B1, B2, B3, etc.
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
84 **/
860
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 857
diff changeset
85 rowOffset_ = information_.GetWidth() * information_.GetBytesPerValue();
857
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
86 }
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
87 else
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
88 {
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
89 /**
368
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
90 * The sample values for the first pixel are followed by the
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
91 * sample values for the second pixel, etc. For RGB images, this
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
92 * means the order of the pixel values sent shall be R1, G1, B1,
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
93 * R2, G2, B2, ..., etc.
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
94 **/
860
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 857
diff changeset
95 rowOffset_ = information_.GetWidth() * information_.GetBytesPerValue() * information_.GetChannelCount();
368
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
96 }
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
97 }
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
98
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
99
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
100 void DicomIntegerPixelAccessor::GetExtremeValues(int32_t& min,
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
101 int32_t& max) const
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
102 {
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
103 if (information_.GetHeight() == 0 || information_.GetWidth() == 0)
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
104 {
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
105 min = max = 0;
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
106 return;
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
107 }
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
108
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
109 min = std::numeric_limits<int32_t>::max();
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
110 max = std::numeric_limits<int32_t>::min();
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
111
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
112 for (unsigned int y = 0; y < information_.GetHeight(); y++)
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
113 {
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
114 for (unsigned int x = 0; x < information_.GetWidth(); x++)
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
115 {
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
116 for (unsigned int c = 0; c < information_.GetChannelCount(); c++)
368
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
117 {
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
118 int32_t v = GetValue(x, y);
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
119 if (v < min)
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
120 min = v;
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
121 if (v > max)
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
122 max = v;
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
123 }
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
124 }
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
125 }
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
126 }
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
127
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
128
368
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
129 int32_t DicomIntegerPixelAccessor::GetValue(unsigned int x,
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
130 unsigned int y,
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
131 unsigned int channel) const
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
132 {
857
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
133 assert(x < information_.GetWidth() &&
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
134 y < information_.GetHeight() &&
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
135 channel < information_.GetChannelCount());
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
136
53
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
137 const uint8_t* pixel = reinterpret_cast<const uint8_t*>(pixelData_) +
368
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
138 y * rowOffset_ + frame_ * frameOffset_;
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
139
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
140 // https://www.dabsoft.ch/dicom/3/C.7.6.3.1.3/
857
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
141 if (information_.IsPlanar())
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
142 {
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
143 /**
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
144 * Each color plane shall be sent contiguously. For RGB images,
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
145 * this means the order of the pixel values sent is R1, R2, R3,
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
146 * ..., G1, G2, G3, ..., B1, B2, B3, etc.
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
147 **/
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
148 assert(frameOffset_ % information_.GetChannelCount() == 0);
860
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 857
diff changeset
149 pixel += channel * frameOffset_ / information_.GetChannelCount() + x * information_.GetBytesPerValue();
857
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
150 }
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 854
diff changeset
151 else
368
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
152 {
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
153 /**
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
154 * The sample values for the first pixel are followed by the
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
155 * sample values for the second pixel, etc. For RGB images, this
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
156 * means the order of the pixel values sent shall be R1, G1, B1,
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
157 * R2, G2, B2, ..., etc.
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
158 **/
860
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 857
diff changeset
159 pixel += channel * information_.GetBytesPerValue() + x * information_.GetChannelCount() * information_.GetBytesPerValue();
368
80011cd589e6 support of rgb images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 319
diff changeset
160 }
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
161
464
5987dd8e0776 fix reading signed values in dicom
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
162 uint32_t v;
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
163 v = pixel[0];
860
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 857
diff changeset
164 if (information_.GetBytesPerValue() >= 2)
464
5987dd8e0776 fix reading signed values in dicom
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
165 v = v + (static_cast<uint32_t>(pixel[1]) << 8);
860
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 857
diff changeset
166 if (information_.GetBytesPerValue() >= 3)
464
5987dd8e0776 fix reading signed values in dicom
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
167 v = v + (static_cast<uint32_t>(pixel[2]) << 16);
860
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 857
diff changeset
168 if (information_.GetBytesPerValue() >= 4)
464
5987dd8e0776 fix reading signed values in dicom
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
169 v = v + (static_cast<uint32_t>(pixel[3]) << 24);
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
170
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
171 v = v >> information_.GetShift();
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
172
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
173 if (v & signMask_)
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
174 {
464
5987dd8e0776 fix reading signed values in dicom
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
175 // Signed value
465
7a966b440f19 signed images to PNG
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 464
diff changeset
176 // http://en.wikipedia.org/wiki/Two%27s_complement#Subtraction_from_2N
7a966b440f19 signed images to PNG
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 464
diff changeset
177 return -static_cast<int32_t>(mask_) + static_cast<int32_t>(v & mask_) - 1;
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
178 }
464
5987dd8e0776 fix reading signed values in dicom
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
179 else
5987dd8e0776 fix reading signed values in dicom
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
180 {
5987dd8e0776 fix reading signed values in dicom
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
181 // Unsigned value
5987dd8e0776 fix reading signed values in dicom
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
182 return static_cast<int32_t>(v & mask_);
5987dd8e0776 fix reading signed values in dicom
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 398
diff changeset
183 }
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
184 }
53
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
185
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
186
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
187 void DicomIntegerPixelAccessor::SetCurrentFrame(unsigned int frame)
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
188 {
853
839be3022203 DicomImageInformation
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 824
diff changeset
189 if (frame >= information_.GetNumberOfFrames())
53
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
190 {
62
a70bb32802ae renaming Server
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 57
diff changeset
191 throw OrthancException(ErrorCode_ParameterOutOfRange);
53
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
192 }
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
193
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
194 frame_ = frame;
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
195 }
293038baf8f1 access to multi-frame images
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 50
diff changeset
196
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
197 }