How can I convert a DICOM image to a jpeg image or bmp image?
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Said BOUREZG
am 27 Feb. 2015
Bearbeitet: Rance Tino
am 26 Jan. 2018
In my project, I need an medical images in bmp form, but the problem they didn't exist with that form, so I must convert a DICOM image format to bmp, I have write the code but a problem stop when I want to save X,MAP obtained, X is int16, than what should I do?.
3 Kommentare
Walter Roberson
am 26 Jan. 2017
If the returned MAP is non-empty then you need to
X = ind2rgb(X, MAP);
If you are certain that the returned MAP will be empty then you should not return it as an output from DICOMREAD.
Rance Tino
am 26 Jan. 2018
Bearbeitet: Rance Tino
am 26 Jan. 2018
Or you could easily use this function https://au.mathworks.com/matlabcentral/fileexchange/65852-dicom2image-filename-imagetype-
Akzeptierte Antwort
Image Analyst
am 27 Feb. 2015
Why do you need them in that form? You can read the DICOM images in to your m-file with dicomread() so why do you need to read them in from a BMP with imread()?
11 Kommentare
Image Analyst
am 1 Mär. 2015
Regarding your "Answer", if you want it to be uint8(), use mat2gray():
image8 = uint8(255 * mat2gray(X));
imshow(image8, []);
Weitere Antworten (2)
Image Analyst
am 1 Mär. 2015
Said, try this:
[filename, pathname] = uigetfile('*.dcm', 'Open DICOM Image');
if isequal(filename, 0) || isequal(pathname, 0)
uiwait(helpdlg('Image reading canceled.'));
else
[X,MAP]=dicomread(fullfile(pathname, filename));
subplot(1,2,1);
imshow(X, []);
title('16 bit image.', 'FontSize', 30);
% Convert to 8 bit.
image8 = uint8(255 * mat2gray(X));
subplot(1,2,2);
imshow(image8, []);
title('8 bit image.', 'FontSize', 30);
imwrite(image8,'myfile.bmp');
end
2 Kommentare
david martinez
am 1 Jul. 2017
I get this error
Error using images.internal.imageDisplayValidateParams>validateCData (line 115) Multi-plane image inputs must be RGB images of size MxNx3.
Error in images.internal.imageDisplayValidateParams (line 27) common_args.CData = validateCData(common_args.CData,image_type);
Error in images.internal.imageDisplayParseInputs (line 78) common_args = images.internal.imageDisplayValidateParams(common_args);
Error in imshow (line 240) images.internal.imageDisplayParseInputs({'Parent','Border','Reduce'},preparsed_varargin{:});
Error in untitled111 (line 7) imshow(X, []);
the image is multiplanar, some idea
Walter Roberson
am 1 Jul. 2017
You cannot use imshow() to display more than 3 planes of a multiplanar image.
You need to use a volume viewer such as volumeViewer (R2017a or later), or you need to treat the planes as slices to be displayed, such as getting imdisp() or its follow-on SC from the File Exchange and using
imdisp(reshape(X, size(X,1), size(X,2), 1, size(X,3)))
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