dicom_prep_GeneralImage.m
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dicom_prep_GeneralImage.m
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			function metadata = dicom_prep_GeneralImage(metadata, dictionary)
			%DICOM_PREP_GENERALIMAGE Set necessary values for General Image module
			%
			% See PS 3.3 Sec C.7.6.1

			% Copyright 1993-2010 The MathWorks, Inc.
			%

			image_time = now;

			ImageDate_name = dicom_name_lookup('0008', '0023', dictionary);
			ImageTime_name = dicom_name_lookup('0008', '0033', dictionary);

			if (~isfield(metadata, ImageDate_name))
			metadata.(ImageDate_name) = convert_date(image_time, 'DA');
			end

			if (~isfield(metadata, ImageTime_name))
			metadata.(ImageTime_name) = convert_date(image_time, 'TM');
			end



			function dicomDate = convert_date(ML_date, formatString)
			%CONVERT_DATE Convert a MATLAB datenum to a DICOM date/time string
			%
			% See PS 3.5 Sec. 6.2 for DICOM date/time formats.

			vec = datevec(ML_date);

			switch (formatString)
			case 'DA'
			% YYYYMMDD
			dicomDate = sprintf('%04d%02d%02d', vec(1:3));
			case 'DT'
			% YYYYMMDDHHMMSS.FFFFFF
			dicomDate = sprintf('%04d%02d%02d%02d%02d%09.6f', vec);
			case 'TM'
			%HHMMSS.FFFFFF
			dicomDate = sprintf('%02d%02d%09.6f', vec(4:6));
			end