Posted by
Michael A. Miller on
URL: http://imagej.273.s1.nabble.com/measurements-using-MRI-jpg-images-tp3701304p3701309.html
>>>>> "Gabriel" == Gabriel Landini <
[hidden email]> writes:
> You should be better off by converting your dicom images to
> tiff or png. Sure one can specify no compression in a jpeg
> file, so it saves all the data, but why to use uncompressed
> jpeg format, when tiff and png can do non-lossy compression
> if necessary?
He may be even better off not doing the conversion at all. DICOM
files contain a large amount of meta data that cannot be
incorporated into tiff or png or any other "picture" format, even
though the pixel intensities may be the same in each format.
Medical image data is rarely (never?) just pixel data, and
therefore image formats designed for primarily pixel data will
always fall short.
As is sometimes said in the medical imaging community "to convert
IS to delete." I think this originally came from remarks
accompanying the (X)MedCon source, which also says "!! ALWAYS
PRESERVE YOUR ORIGINAL DATA !!" - also very good advice. Even
converting among the various medical image data formats is not
typically possible without deleting some meta data.
Mike