Discussion :

[haley]

bonsoir
voila , je rencontre un problème d'affichage d'une image dicom(je débute) ...
vous en pensez quoi !!!c 'est une histoire de mise à jour de imshow??!!de la toolbox....

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

1
2
3
4
5
6
7
8
9
 
I=dicomread('CD-16.dcm');
imshow(I,'DisplayRange',[]);
 
??? Error using ==> imshow (ParseInputs)
Invalid input arguments; see HELP IMSHOW
 
Error in ==> C:\MATLAB6p5\toolbox\images\images\imshow.m
On line 90  ==> [imtype, cdata, cdatamapping, clim, map, xdata, ydata, filename, ...

merci

[Jerome Briot]

Que retourne ceci ?

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

f = dicominfo('CD-16.dcm')

[haley]

les informations liées à l'image:

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
 
 Filename: 'CD-16.dcm'
                               FileModDate: '05-Dec-2008 15:23:00'
                                  FileSize: 2493342
                                    Format: 'DICOM'
                             FormatVersion: 3
                                     Width: 64
                                    Height: 64
                                  BitDepth: 16
                                 ColorType: 'grayscale'
                            SelectedFrames: []
                                FileStruct: [1x1 struct]
                          StartOfPixelData: 265106
                    MetaElementGroupLength: 194
                FileMetaInformationVersion: [2x1 double]
                   MediaStorageSOPClassUID: '1.2.840.10008.5.1.4.1.1.20'
                MediaStorageSOPInstanceUID: '2.16.840.1.113662.5.8796823242730.3.121.1059665469'
                         TransferSyntaxUID: '1.2.840.10008.1.2.1'
                    ImplementationClassUID: '1.2.276.0.7230010.3.0.3.5.2'
                 ImplementationVersionName: 'OFFIS_DCMTK_352'
                    IdentifyingGroupLength: 456
                      SpecificCharacterSet: 'ISO_IR 100'
                                 ImageType: 'ORIGINAL\PRIMARY\GATED TOMO\EMISSION'
                        InstanceCreatorUID: '2.16.840.1.113662.5.8796823242730'
                               SOPClassUID: '1.2.840.10008.5.1.4.1.1.20'
                            SOPInstanceUID: '2.16.840.1.113662.5.8796823242730.3.121.1059665469'
                                 StudyDate: '20030731'
                           AcquisitionDate: '20030731'
                                 ImageDate: '20030731'
                                 StudyTime: '162219'
                           AcquisitionTime: '162219'
                                 ImageTime: '162219'
                           AccessionNumber: ''
                                  Modality: 'NM'
                              Manufacturer: 'Marconi Medical Systems, NM Division'
                           InstitutionName: 'CH GIRAC'
                        InstitutionAddress: 'ANGOULEME'
                   ReferringPhysiciansName: [1x1 struct]
                               StationName: 'AXIS418'
                          StudyDescription: 'REPOS'
                         SeriesDescription: 'Raw Data'
              NameOfPhysiciansReadingStudy: [1x1 struct]
                    ManufacturersModelName: 'AXIS'
                        PatientGroupLength: 56
                              PatientsName: [1x1 struct]
                                 PatientID: ''
                         PatientsBirthDate: '19530929'
                               PatientsSex: 'F'
                    AcquisitionGroupLength: 100
                          BodyPartExamined: 'COEUR ECG'
                         CountsAccumulated: 0
           AcquisitionTerminationCondition: 'TRIG'
                        DeviceSerialNumber: '418'
                          SoftwareVersions: '8.9.0 1.7'
                       TriggerSourceOrType: 'EKG'
                                 SkipBeats: 0
                        ProcessingFunction: ''
                          ImageGroupLength: 148
                          StudyInstanceUID: '2.16.840.1.113662.5.8796823242730.1.1119998746'
                         SeriesInstanceUID: '2.16.840.1.113662.5.8796823242730.3.121.1059665469'
                                   StudyID: ''
                              SeriesNumber: 21
                            InstanceNumber: 21
                             ImageComments: ''
              ImagePresentationGroupLength: 246
                           SamplesPerPixel: 1
                 PhotometricInterpretation: 'MONOCHROME2'
                            NumberOfFrames: 272
                     FrameIncrementPointer: [6x2 double]
                                      Rows: 64
                                   Columns: 64
                              PixelSpacing: [2x1 double]
                            CorrectedImage: 'COR'
                             BitsAllocated: 16
                                BitsStored: 16
                                   HighBit: 15
                       PixelRepresentation: 0
                   SmallestImagePixelValue: 0
                    LargestImagePixelValue: 122
                              WindowCenter: 61
                               WindowWidth: 122
                          RescaleIntercept: 0
                              RescaleSlope: 1
                NuclearMedicineGroupLength: 13926
                        EnergyWindowVector: [272x1 double]
                     NumberOfEnergyWindows: 1
           EnergyWindowInformationSequence: [1x1 struct]
    RadiopharmaceuticalInformationSequence: [1x1 struct]
                            DetectorVector: [272x1 double]
                         NumberOfDetectors: 1
               DetectorInformationSequence: [1x1 struct]
                            RotationVector: [272x1 double]
                         NumberOfRotations: 1
               RotationInformationSequence: [1x1 struct]
                          RRIntervalVector: [272x1 double]
                       NumberOfRRIntervals: 1
                  GatedInformationSequence: [1x1 struct]
                            TimeSlotVector: [272x1 double]
                         NumberOfTimeSlots: 8
                         AngularViewVector: [272x1 double]
                      TypeOfDetectorMotion: 'STEP AND SHOOT'
                                   ImageID: 'Raw Data'
......

[Jerome Briot]

Tu peux attacher une de ces images (dans une archive zip) ?

[haley]

voila !!

[Caro-Line]

Je vais peut-être dire une bêtise mais tu sembles avoir la version 6.5, or la syntaxe que tu utilises semble n'exister que depuis la R14.

The imshow syntax in which you specify the display range of the imageimshow(I,[LOW HIGH])
has been augmented to use a parameter/value pair syntax
imshow(...,'DisplayRange',[LOW HIGH])

lien

Donc essayes simplement :

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

imshow(I,[]);