4D figure with a colormap

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Ana Gabriela Guedes 2021-10-31

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https://ww2.mathworks.cn/matlabcentral/answers/1576103-4d-figure-with-a-colormap

评论： Ana Gabriela Guedes 2021-11-1

Hi!

I have an exercise where I have a certain dicom collection input and from there I have to get only 1 of the series (corresponding to the ones that have 'US' as a Modality in the table) and do the following:

read the series data with the color map
display in 1 figure the montage of the series with the color map

Can someone please help me in how should I do this?

The begin of the code will be something like this: (my problem is that I get an 4-D uint8 type of variable and I cannot show it as a regular image)

dir = fullfile( matlabroot, 'toolbox/images/imdata'); %Directory from where I get the dicom Collectuon
infoTable = dicomCollection(dir);
disp(infoTable)
T2 = strcmp(infoTable.Modality,'US'); %Finds the series with the Modality equal to ’US’
series = infoTable(T2,:); %Series with the modality equal to 'US'
fileName = series.Filenames; %Cell array with the file name
fName = fileName{1,1};       %String with the file name
I2 = dicomread(fName); 

Thank you a lot in advance, this is the only information I have (I'm not even telled to use a specific colormap).

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Answer 1

DGM 2021-11-1

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https://ww2.mathworks.cn/matlabcentral/answers/1576103-4d-figure-with-a-colormap#answer_821348

在 MATLAB Online 中打开

Well, dicomCollection() won't run in-browser, but see if this is what you're after:

dir = fullfile( matlabroot, 'toolbox/images/imdata'); %Directory from where I get the dicom Collectuon
infoTable = dicomCollection(dir);
disp(infoTable)
T2 = strcmp(infoTable.Modality,'US'); %Finds the series with the Modality equal to ’US’
series = infoTable(T2,:); %Series with the modality equal to 'US'
fileName = series.Filenames; %Cell array with the file name
fName = fileName{1,1};       %String with the file name
[I2 map] = dicomread(fName); 
montage(I2,map,'size',[5 2]) 