gdcmPython/testSuite.py

   1 import unittest
   2 import os
   3 from gdcmPython import *
   4
   5 class gdcmTestCase(unittest.TestCase):
   6    # The files whose name starts with a modality (e.g. CR-MONO1-10-chest.dcm)
   7    # come from Sebastien Barre's Dicom2 highly recommendable site
   8    # http://www.barre.nom.fr/medical/samples/index.html
   9    BarreFiles = [
  10       ####################################
  11       # CR modality examples:
  12       ####################################
  13       ["CR-MONO1-10-chest.dcm",
  14          [ ["Modality", "CR"],
  15            #"Transfer Syntax UID" is absent.
  16            ["Rows", "440"],
  17            ["Columns", "440"],
  18            ["Bits Stored", "10"],
  19            ["Bits Allocated", "16"],
  20            ["High Bit", "9"],
  21            ["Pixel Representation", "0"],
  22            ["Manufacturer", "FUJI PHOTO FILM CO. LTD."],
  23            ["Manufacturer Model Name", "9000"],
  24            ["Pixel Data", "gdcm::NotLoaded. Address:776 Length:387200"] ] ],
  25       ####################################
  26       # CT modality examples:
  27       ####################################
  28       ["CT-MONO2-16-brain.dcm",
  29          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.1"],  # Explicit VR, LE
  30            ["Modality", "CT"],
  31            ["Rows", "512"],
  32            ["Columns", "512"],
  33            ["Bits Stored", "16"],
  34            ["Bits Allocated", "16"],
  35            ["High Bit", "15"],
  36            ["Pixel Representation", "1"],
  37            ["Manufacturer", "Picker International, Inc."],
  38            ["Manufacturer Model Name", "PQ5000"],
  39            ["Pixel Data", "gdcm::NotLoaded. Address:1680 Length:524288"] ] ],
  40       ["CT-MONO2-16-ort.dcm",
  41          [ ["Transfer Syntax UID", "1.2.840.10008.1.2"],  # Implicit VR, LE
  42            ["Modality", "CT"],
  43            ["Rows", "512"],
  44            ["Columns", "512"],
  45            ["Bits Stored", "16"],
  46            ["Bits Allocated", "16"],
  47            ["High Bit", "15"],
  48            ["Pixel Representation", "1"],
  49            ["Manufacturer", "GE MEDICAL SYSTEMS"],
  50            ["Manufacturer Model Name", "HiSpeed CT/i"],
  51            ["Pixel Data", "gdcm::NotLoaded. Address:1674 Length:524288"] ] ],
  52       ["CT-MONO2-16-ankle.dcm",
  53          [ ["Transfer Syntax UID", "1.2.840.10008.1.2"],  # Implicit, little
  54            ["Modality", "CT"],
  55            ["Rows", "512"],
  56            ["Columns", "512"],
  57            ["Bits Stored", "16"],
  58            ["Bits Allocated", "16"],
  59            ["High Bit", "15"],
  60            ["Pixel Representation", "1"],
  61            ["Manufacturer", "GE MEDICAL SYSTEMS"],
  62            ["Manufacturer Model Name", "GENESIS_ZEUS"],
  63            ["Pixel Data", "gdcm::NotLoaded. Address:1148 Length:524288"] ] ],
  64       ["CT-MONO2-8-abdo.dcm",
  65          [ ["Transfer Syntax UID", "1.2.840.10008.1.2"],  # Implicit, little
  66            ["Modality", "CT"],
  67            ["Rows", "512"],
  68            ["Columns", "512"],
  69            ["Bits Stored", "8"],
  70            ["Bits Allocated", "8"],
  71            ["High Bit", "7"],
  72            ["Pixel Representation", "0"],
  73            ["Manufacturer", "FUJI"],
  74            ["Pixel Data", "gdcm::NotLoaded. Address:796 Length:262144"] ] ],
  75       ["CT-MONO2-12-lomb-an2.acr2",
  76          [ ["Modality", "CT"],
  77            #"Transfer Syntax UID" and "Photometric Interpretation" are absent.
  78            ["Rows", "512"],
  79            ["Columns", "512"],
  80            ["Bits Stored", "12"],
  81            ["Bits Allocated", "16"],
  82            ["High Bit", "11"],
  83            ["Pixel Representation", "0"],
  84            ["Manufacturer", "SIEMENS"],
  85            ["Pixel Data", "gdcm::NotLoaded. Address:1230 Length:524288"] ] ],
  86       ["CT-MONO2-16-chest.dcm",
  87          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.4.70"], # jpeg...
  88            ["Modality", "CT"],
  89            ["Photometric Interpretation", "MONOCHROME2"],
  90            ["Rows", "400"],
  91            ["Columns", "512"],
  92            ["Bits Stored", "16"],
  93            ["Bits Allocated", "16"],
  94            ["High Bit", "15"],
  95            ["Pixel Representation", "1"],
  96            ["Manufacturer", "GE MEDICAL SYSTEMS"],
  97            ["Pixel Data", "gdcm::NotLoaded. Address:1638 Length:143498"] ] ],
  98       ####################################
  99       ### MR modality examples:
 100       ####################################
 101       ["MR-MONO2-12-angio-an1.acr1",
 102          [ ["Recognition Code", "ACR-NEMA 1.0"],
 103            ["Modality", "MR"],
 104            #"Transfer Syntax UID" and "Photometric Interpretation" are absent.
 105            ["Rows", "256"],
 106            ["Columns", "256"],
 107            ["Bits Stored", "12"],
 108            ["Bits Allocated", "12"],
 109            ["High Bit", "11"],
 110            ["Pixel Representation", "0"],
 111            ["Manufacturer", "Philips"],
 112            # Note: 256*256*12/8 = 98304
 113            ["Pixel Data", "gdcm::NotLoaded. Address:650 Length:98304"] ] ],
 114       ["MR-MONO2-12-an2.acr2",
 115          [ ["Modality", "MR"],
 116            ["Photometric Interpretation", "MONOCHROME2"],
 117            ["Rows", "256"],
 118            ["Columns", "256"],
 119            ["Bits Stored", "12"],
 120            ["Bits Allocated", "16"],
 121            ["High Bit", "11"],
 122            ["Pixel Representation", "0"],
 123            ["Manufacturer", "SIEMENS"],
 124            ["Manufacturer Model Name", "MAGNETOM VISION"],
 125            ["Pixel Data", "gdcm::NotLoaded. Address:1866 Length:131072"] ] ],
 126       ["MR-MONO2-16-head.dcm",
 127          [ ["Transfer Syntax UID", "1.2.840.10008.1.2"], # Imp VR, LE
 128            ["Modality", "MR"],
 129            ["Photometric Interpretation", "MONOCHROME2"],
 130            ["Rows", "256"],
 131            ["Columns", "256"],
 132            ["Bits Stored", "16"],
 133            ["Bits Allocated", "16"],
 134            ["High Bit", "15"],
 135            ["Pixel Representation", "1"],
 136            ["Manufacturer", "GE MEDICAL SYSTEMS"],
 137            ["Manufacturer Model Name", "GENESIS_SIGNA"],
 138            ["Pixel Data", "gdcm::NotLoaded. Address:1804 Length:131072"] ] ],
 139       # MR-MONO2-12-shoulder example is present in the Jpeg section.
 140       # MR-MONO2-16-knee is not present in the test suite since it is too
 141       #    closely related to MR-MONO2-16-head.dcm to be of interest.
 142       ####################################
 143       # OT modality examples:
 144       ####################################
 145       # OT-MONO2-8-hip is not present in the test suite since it is too
 146       #    closely related to OT-MONO2-8-a7 to be of interest.
 147       ["OT-PAL-8-face.dcm",
 148          # Interest: has a color palette
 149          [#"Transfer Syntax UID", and "Manufacturer" are absent.
 150            ["Modality", "OT"],
 151            ["Photometric Interpretation", "PALETTE COLOR"],
 152            ["Rows", "480"],
 153            ["Columns", "640"],
 154            ["Bits Stored", "8"],
 155            ["Bits Allocated", "8"],
 156            ["High Bit", "7"],
 157            ["Pixel Representation", "0"],
 158            ["Pixel Data", "gdcm::NotLoaded. Address:1654 Length:307200"] ] ],
 159       # OT-MONO2-8-colon is not present in the test suite since it is too
 160       #    closely related to OT-MONO2-8-a7 to be of interest.
 161       ["OT-MONO2-8-a7.dcm",
 162          [#"Transfer Syntax UID" is absent.
 163            ["Modality", "OT"],
 164            ["Photometric Interpretation", "MONOCHROME2"],
 165            ["Rows", "512"],
 166            ["Columns", "512"],
 167            ["Bits Stored", "8"],
 168            ["Bits Allocated", "8"],
 169            ["High Bit", "7"],
 170            ["Pixel Representation", "0"],
 171            ["Manufacturer", "Philips Medical Systems"],
 172            ["Pixel Data", "gdcm::NotLoaded. Address:438 Length:262144"] ] ],
 173       ####################################
 174       # US (Ultra Sound) modality examples:
 175       ####################################
 176       ["US-RGB-8-esopecho.dcm",
 177          # Interest: RGB image
 178          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.1"],  # Exp VR, LE
 179            ["Modality", "US"],
 180            ["Photometric Interpretation", "RGB"],
 181            ["Rows", "120"],
 182            ["Columns", "256"],
 183            ["Bits Stored", "8"],
 184            ["Bits Allocated", "8"],
 185            ["High Bit", "7"],
 186            ["Pixel Representation", "0"],
 187            ["Manufacturer", "Acme Products"],
 188          # FIXME: 92160 / (120*256) = 3 bytes per pixel NOT 1. Maybe
 189          # it has something to do with [Samples Per Pixel] = [3] ???
 190          # You said it, puffy (tu l'as dit, bouffi, in french language)
 191          # RGB is 3 bytes per pixel
 192          # + Planar configuration (0028,0006) = 0 --> Pixels RGB
 193            ["Pixel Data", "gdcm::NotLoaded. Address:904 Length:92160"] ] ],
 194       ["US-RGB-8-epicard.dcm",
 195          # Interest: Big endian transfert syntax
 196          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.2"],  # Big endian
 197          # But ... group 0000 is LE .
 198            ["Modality", "US"],
 199            ["Photometric Interpretation", "RGB"],
 200            ["Rows", "480"],
 201            ["Columns", "640"],
 202            ["Bits Stored", "8"],
 203            ["Bits Allocated", "8"],
 204            ["High Bit", "7"],
 205            ["Pixel Representation", "0"],
 206            ["Manufacturer", "G.E. Medical Systems"],
 207            ["Manufacturer Model Name", "LOGIQ 700"],
 208          # + Planar configuration (0028,0006) = 1 --> Plane R, Plane G, Plane B
 209            ["Implementation Version Name", "OFFIS-DCMTK-311"],
 210            ["Pixel Data", "gdcm::NotLoaded. Address:1012 Length:921600"] ] ],
 211    ]
 212
 213    MultiFrameFiles = [
 214    # The number of images is contained in the "Number of Frames" element
 215       ["MR-MONO2-8-16x-heart.dcm",
 216          # Interest: multi-frame
 217          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.1"], # ExpVR, LE
 218            ["Number of Frames", "16"],
 219            ["Modality", "MR"],
 220            ["Photometric Interpretation", "MONOCHROME2"],
 221            ["Rows", "256"],
 222            ["Columns", "256"],
 223            ["Bits Stored", "8"],
 224            ["Bits Allocated", "8"],
 225            ["High Bit", "7"],
 226            ["Pixel Representation", "0"],
 227            ["Manufacturer", "Philips"],
 228            # Note: 256*256*16=1048576 (16 is the number of Frames)
 229            ["Pixel Data", "gdcm::NotLoaded. Address:920 Length:1048576"] ] ],
 230       ["NM-MONO2-16-13x-heart.dcm",
 231          # Interest: NM modality, multi-frame
 232          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.1"], # ExpVR, LE
 233            ["Number of Frames", "13"],
 234            ["Modality", "NM"],
 235            ["Photometric Interpretation", "MONOCHROME2"],
 236            ["Rows", "64"],
 237            ["Columns", "64"],
 238            ["Bits Stored", "16"],
 239            ["Bits Allocated", "16"],
 240            ["High Bit", "15"],
 241            ["Pixel Representation", "0"],
 242            ["Manufacturer", "ACME Products"],
 243            # Note: 64*64*13*2=106496
 244            ["Pixel Data", "gdcm::NotLoaded. Address:1234 Length:106496"] ] ],
 245       ["US-MONO2-8-8x-execho.dcm",
 246          # Interest: multi-frame
 247          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.1"], # ExpVR, LE
 248            ["Number of Frames", "8"],
 249            ["Modality", "US"],
 250            ["Photometric Interpretation", "MONOCHROME2"],
 251            ["Rows", "120"],
 252            ["Columns", "128"],
 253            ["Bits Stored", "8"],
 254            ["Bits Allocated", "8"],
 255            ["High Bit", "7"],
 256            ["Pixel Representation", "0"],
 257            ["Manufacturer", "Acme Products"],
 258            ["Pixel Data", "gdcm::NotLoaded. Address:976 Length:122880"] ] ],
 259       ["US-PAL-8-10x-echo.dcm",
 260          # Interest: RLE (Run Length Encoded) compression, multiframe
 261          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.5"], # RLE
 262            ["Number of Frames", "10"],
 263            ["Modality", "US"],
 264            ["Photometric Interpretation", "PALETTE COLOR"],
 265            ["Rows", "430"],
 266            ["Columns", "600"],
 267            ["Bits Stored", "8"],
 268            ["Bits Allocated", "8"],
 269            ["High Bit", "7"],
 270            ["Pixel Representation", "0"],
 271            ["Manufacturer", "ACME Products"],
 272            ["Pixel Data", "gdcm::NotLoaded. Address:2428 Length:481182"] ] ],
 273       ["XA-MONO2-8-12x-catheter.dcm",
 274          # Interest: XA modality, multi-frame
 275          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.4.70"], # jpeg
 276            ["Number of Frames", "12"],  # 12 images
 277            ["Modality", "XA"],
 278            ["Photometric Interpretation", "MONOCHROME2"],
 279            ["Rows", "512"],
 280            ["Columns", "512"],
 281            ["Bits Stored", "8"],
 282            ["Bits Allocated", "8"],
 283            ["High Bit", "7"],
 284            ["Pixel Representation", "0"],
 285            ["Manufacturer", "Acme Products"],
 286            ["Pixel Data", "gdcm::NotLoaded. Address:1006 Length:920072"] ] ],
 287    ]
 288
 289    GdcmFiles = [
 290       ["gdcm-MR-SIEMENS-16.acr1",
 291          # Interest: good old Acr-Nema Version 1, see also Oddities below
 292          [ ["Recognition Code", "ACR-NEMA 1.0"],
 293            ["Modality", "MR"],
 294            ["Rows", "256"],
 295            ["Columns", "256"],
 296            ["Bits Stored", "12"],
 297            ["Bits Allocated", "16"],
 298            ["High Bit", "11"],
 299            ["Pixel Representation", "0"],
 300            ["Manufacturer", "SIEMENS"],
 301            ["Manufacturer Model Name", "GBS III"],
 302          # FIXME: this image looks padded at the end. The length of the file
 303          # is 140288. Notice that, 256*256*2 + 1024 = 131072 + 1024 = 132096
 304            ["Pixel Data", "gdcm::NotLoaded. Address:8192 Length:132096"],
 305            # Oddities: "Study ID" and "Series Number" are empty
 306            ["Study ID", ""],
 307            ["Series Number", ""] ] ],
 308            # Oddities: "Study" and "Serie Instance UID" are not present
 309       ["gdcm-MR-SIEMENS-16.acr2",
 310          # Interest: Acr-Nema Version 2
 311          [ ["Recognition Code", "ACR-NEMA 2.0"],
 312            ["Modality", "MR"],
 313            ["Rows", "512"],
 314            ["Columns", "512"],
 315            ["Bits Stored", "12"],
 316            ["Bits Allocated", "16"],
 317            ["High Bit", "11"],
 318            ["Pixel Representation", "0"],
 319            ["Manufacturer", "SIEMENS"],
 320            ["Manufacturer Model Name", "MAGNETOM VISION"],
 321            ["Study Instance UID",
 322             "1.3.12.2.1107.5.2.4.7630.20000918174641000"],
 323            ["Study ID", "1"],
 324            ["Series Instance UID",
 325             "1.3.12.2.1107.5.2.4.7630.20000918175714000007"],
 326            ["Series Number", "7"],
 327            ["Pixel Data", "gdcm::NotLoaded. Address:6052 Length:524288"] ] ],
 328       ["gdcm-US-ALOKA-16.dcm",
 329          # Interest: - possesses 3 LUTS: a Green (checked), a Red and BLue.
 330          #           - announced as implicit VR, but really explicit VR.
 331          [ ["Transfer Syntax UID", "1.2.840.10008.1.2"],  # Implicit VR, LE
 332            ["Modality", "US"],
 333            ["Photometric Interpretation", "PALETTE COLOR"],
 334            ["Segmented Green Palette Color LUT Data",
 335             "gdcm::NotLoaded. Address:89576 Length:113784"],
 336            ["Rows", "480"],
 337            ["Columns", "640"],
 338            ["Bits Stored", "16"],
 339            ["Bits Allocated", "16"],
 340            ["High Bit", "15"],
 341            ["Pixel Representation", "0"],
 342            ["Manufacturer", "ALOKA CO., LTD."],
 343            ["Manufacturer Model Name", "SSD-4000"],
 344            ["Pixel Data", "gdcm::NotLoaded. Address:258740 Length:614400"] ] ],
 345       ["gdcm-MR-PHILIPS-16.dcm",
 346          # Interest: - possesses a sequence
 347          #           - dicom file, with a recognition code of ACR-NEMA1
 348          [ ["Transfer Syntax UID", "1.2.840.10008.1.2"],  # Implicit VR, LE
 349            ["Recognition Code", "ACR-NEMA 1.0"],
 350            ["Modality", "MR"],
 351            ["Photometric Interpretation", "MONOCHROME2"],
 352            ["Rows", "256"],
 353            ["Columns", "256"],
 354            ["Bits Stored", "8"],
 355            ["Bits Allocated", "16"],
 356            ["High Bit", "7"],
 357            ["Pixel Representation", "0"],
 358            ["Manufacturer", "Philips Medical Systems"],
 359            ["Manufacturer Model Name", "Gyroscan Intera"],
 360            ["Sequence Variant", "OTHER"],
 361            ["Pixel Data", "gdcm::NotLoaded. Address:6584 Length:131072"] ] ],
 362       ["gdcm-MR-PHILIPS-16-Multi-Seq.dcm",
 363          # Interest: - possesses many sequences in group 0x0029
 364          #           - Big sequence 28808 bytes at (0x0029, 0x263d)
 365          #           - dicom file, with a recognition code of ACR-NEMA1
 366          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.1"],
 367            ["Recognition Code", "ACR-NEMA 1.0"],
 368            ["Modality", "MR"],
 369            ["Photometric Interpretation", "MONOCHROME2"],
 370            ["Rows", "128"],
 371            ["Columns", "128"],
 372            ["Bits Stored", "12"],
 373            ["Bits Allocated", "16"],
 374            ["High Bit", "11"],
 375            ["Pixel Representation", "0"],
 376            ["Manufacturer", "Philips Medical Systems"],
 377            ["Manufacturer Model Name", "Gyroscan Intera"],
 378            ["Sequence Variant", "OTHER"],
 379            ["Pixel Data", "gdcm::NotLoaded. Address:35846 Length:32768"] ] ],
 380       ["gdcm-MR-PHILIPS-16-NonRectPix.dcm",
 381          # Interest: - pixels are non rectangular
 382          #           - private elements are in explicit VR (which is normal)
 383          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.1"],  # Explicit VR, LE
 384            ["Modality", "MR"],
 385            ["Photometric Interpretation", "MONOCHROME2"],
 386            ["Rows", "64"],
 387            ["Columns", "160"],
 388            ["Bits Stored", "12"],
 389            ["Bits Allocated", "16"],
 390            ["High Bit", "11"],
 391            ["Pixel Representation", "0"],
 392            ["Manufacturer", "Philips Medical Systems"],
 393            ["Manufacturer Model Name", "Gyroscan Intera"],
 394            ["Pixel Spacing", "0.487416\\0.194966"],
 395            ["Pixel Data", "gdcm::NotLoaded. Address:5010 Length:20480"] ] ],
 396       ["gdcm-CR-DCMTK-16-NonSamplePerPix.dcm",
 397          # Interest: - Misses the "Samples Per Pixel" element which prevents
 398          #             e-film from reading it.
 399          #           - Misses the Manufacturer related info
 400          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.1"],  # Explicit VR, LE
 401            ["Modality", "CR"],
 402            ["Photometric Interpretation", "MONOCHROME2"],
 403            ["Rows", "750"],
 404            ["Columns", "750"],
 405            ["Bits Stored", "8"],
 406            ["Bits Allocated", "8"],
 407            ["High Bit", "7"],
 408            ["Pixel Representation", "0"],
 409            ["Implementation Version Name", "OFFIS_DCMTK_341"],
 410            ["Pixel Data", "gdcm::NotLoaded. Address:740 Length:562500"] ] ],
 411    ]
 412
 413    GdcmJpegFiles = [
 414       ["gdcm-JPEG-Extended.dcm",
 415          # Interest: Jpeg compression [Extended (2,4)]
 416          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.4.51"],
 417            ["Modality", "CT"],
 418            ["Photometric Interpretation", "MONOCHROME2"],
 419            ["Rows", "512"],
 420            ["Columns", "512"],
 421            ["Bits Stored", "12"],
 422            ["Bits Allocated", "16"],
 423            ["High Bit", "11"],
 424            ["Pixel Representation", "0"],
 425            ["Manufacturer", "SIEMENS"],
 426            ["Manufacturer Model Name", "Volume Zoom"],
 427            ["Pixel Data", "gdcm::NotLoaded. Address:2946 Length:192218"] ] ],
 428       ["MR-MONO2-12-shoulder.dcm",
 429          # Interest: Jpeg compression [Lossless, non-hierar. (14)]
 430          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.4.57"],
 431            ["Modality", "MR"],
 432            ["Photometric Interpretation", "MONOCHROME2"],
 433            ["Rows", "1024"],
 434            ["Columns", "1024"],
 435            ["Bits Stored", "12"],
 436            ["Bits Allocated", "16"],
 437            ["High Bit", "11"],
 438            ["Pixel Representation", "0"],
 439            ["Manufacturer", "Philips Medical Systems"],
 440            ["Manufacturer Model Name", "Gyroscan NT"],
 441            ["Pixel Data", "gdcm::NotLoaded. Address:1580 Length:718948"] ] ],
 442       ["gdcm-JPEG-LossLess3a.dcm",
 443          # Interest: - Jpeg compression [Lossless, hierar., first-order
 444          #             pred. 14, Select. Val. 1]
 445          #           - contains a sequence [circa (0008,2112)]
 446          #           - contains additional data after the pixels ???
 447          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.4.70"],
 448            ["Modality", "CT"],
 449            ["Photometric Interpretation", "MONOCHROME2"],
 450            ["Rows", "512"],
 451            ["Columns", "512"],
 452            ["Bits Stored", "12"],
 453            ["Bits Allocated", "16"],
 454            ["High Bit", "11"],
 455            ["Pixel Representation", "0"],
 456            ["Manufacturer", "SIEMENS"],
 457            ["Manufacturer Model Name", "Volume Zoom"] ] ],
 458          # FIXME: the pixel data looks like corrupted. As stated by "od -A d -c"
 459          #   0002528     à 177 020 \0  O  B \0 \0   ÿ  ÿ   ÿ   ÿ  þ  ÿ \0  à
 460          #   0002544    \0  \0  \0 \0  þ  ÿ \0  à 202  ? 003  \0  ÿ  Ø  ÿ  Ã
 461          # which we interpret as follows:
 462          #   - 2528: (à 177, 020 \0) = (0x7fe0, 0x0010) i.e. Pixel Data tag,
 463          #   - 2532: OB i.e. encapsulated encoded Pixel Data,
 464          #   - 2534: Two bytes reserved,
 465          #   - 2536: ÿ ÿ ÿ ÿ = 0xffffffff i.e. data element length is undefined.
 466          #   - 2540: (þ ÿ, \0 à) = (0xfffe, 0xe000) i.e. basic offset table
 467          #           item tag
 468          #   - 2544: \0 \0 \0 \0 i.e. offset table as length zero, i.e. no
 469          #           item value for offset table.
 470          #   - 2548: (þ ÿ, \0 à) = (0xfffe, 0xe000) i.e. item tag of first
 471          #           fragment of (encoded) pixel data.
 472          #   - 2552: 202 ? 003 \0 = 212866 bytes i.e. length of first fragment
 473          #           of (encoded) pixel data.
 474          # and so the next item tag should be found at the 2556+212866 th
 475          # octet i.e. at address 215422. But, as stated by od, we find:
 476          #   0215408   E   u Ö 026   Î   É 7 ¬ Ã ¸ ó ¿ ÿ Ù \f °
 477          #   0215424   ¶ 016 P   Ñ 002 016
 478          # and (\f °, ¶ 016) is NOT an OB item TAG which is required to be
 479          # present (at least there should be a sequence delimiter), refer to
 480          # PS 3.5-2001 page 50.
 481       ["gdcm-JPEG-LossLess3b.dcm",
 482          # Interest: - Jpeg compression [Lossless, hierar., first-order
 483          #             pred. 14, Select. Val. 1]
 484          #           - encoding is sligthly different from LossLess3a.dcm ???
 485          [ ["Transfer Syntax UID", "1.2.840.10008.1.2.4.70"],
 486            ["Modality", "CR"],
 487            ["Photometric Interpretation", "MONOCHROME2"],
 488            ["Rows", "2076"],
 489            ["Columns", "1876"],
 490            ["Bits Stored", "15"],
 491            ["Bits Allocated", "16"],
 492            ["High Bit", "14"],
 493            ["Pixel Representation", "0"],
 494            ["Manufacturer", "Philips Medical Systems"],
 495            ["Manufacturer Model Name", "Cassette Holder Type 9840 500 35201"],
 496            ["Pixel Data", "gdcm::NotLoaded. Address:3144 Length:4795668"] ] ],
 497    ]
 498
 499    def _BaseTest(self, FileSet):
 500       for entry in FileSet:
 501          fileName = os.path.join(GDCM_TEST_DATA_PATH, entry[0])
 502          toRead = gdcmHeader(fileName)
 503          valDict = toRead.GetPubElVal()
 504          for subEntry in entry[1]:
 505             element = subEntry[0]
 506             value   = subEntry[1]
 507             self.assertEqual(valDict[element], value,
 508                              ("Wrong %s for file %s (got %s, shoud be %s)"
 509                                % (element,fileName, valDict[element], value)) )
 510
 511    def testBarre(self):
 512       gdcmTestCase._BaseTest(self, gdcmTestCase.BarreFiles)
 513
 514    def testMultiFram(self):
 515       gdcmTestCase._BaseTest(self, gdcmTestCase.MultiFrameFiles)
 516
 517    def testFiles(self):
 518       gdcmTestCase._BaseTest(self, gdcmTestCase.GdcmFiles)
 519
 520    def testJpeg(self):
 521       gdcmTestCase._BaseTest(self, gdcmTestCase.GdcmJpegFiles)
 522
 523    def testWrite(self):
 524       import md5
 525       SourceFileName = os.path.join(GDCM_TEST_DATA_PATH,
 526                                     'gdcm-MR-PHILIPS-16-Multi-Seq.dcm')
 527       Source = gdcmFile(SourceFileName);
 528       Source.GetImageData()
 529       TargetFileName = "junk"
 530       Target = Source.WriteDcmImplVR(TargetFileName)
 531       Sign = 'c3d27238647b7eaa773bff6ea0692b54'
 532       ComputeSign = md5.new(open(TargetFileName).read()).hexdigest()
 533       self.assertEqual(ComputeSign, Sign,
 534           ("Wrong signature for file %s (got %s, shoud be %s)"
 535            % (SourceFileName, ComputeSign, Sign)) )
 536       os.unlink(TargetFileName)
 537
 538 if __name__ == '__main__':
 539    if not GDCM_TEST_DATA_PATH:
 540       print "GDCM_TEST_DATA_PATH is not setup properly. This test suite"
 541       print "   requires that some Dicom reference files be installed."
 542       print "   For further details on installation of gdcmData, please"
 543       print "   refer to the developper's section of page "
 544       print "       http://www.creatis.insa-lyon.fr/Public/Gdcm"
 545    unittest.main()
 546