How to convert a DICOM file format to RGB file format?

Using DICOM file format we can't

Answer 1

[Image Analyst]

Use dicomread(). It will give you the image inside the file, either in gray scale or color or whatever format it's stored in.

[abdo elsayed]

can you post code plz ?

[Walter Roberson]

TheData = dicomread('TheDicomFile.dcm');

if ndims(TheData) > 3
  error('Dicom file is 4 or more dimensions and cannot be converted to a single RGB image')
end
if size(TheData,3) == 1
  RGB_image = TheData(:,:,1);
elseif size(TheData,3) == 3
  RGB_image = TheData;
else
  error('Dicom file appears to be grayscale slices and cannot be converted to a single RGB image')
end