[Insight-users] Performance regression in ITK + gdcm 2.0 reading DICOM JPEG files

[Roger Bramon Feixas]

Hi,

Recently we updated our ITK version from ITK 3.16 to ITK 3.18 and we decided
to relink ITK with system GDCM 2.0. After some tests, we concluded ITK
3.18+GDCM 2.0 is faster than ITK 3.18 reading DICOM Little Endian files,
however ITK 3.18+GDCM 2.0 is rather slower reading DICOM JPEG files. I
attach a PDF file which is a time comparison of ITK 2.8, 3.16, 3.18 and
3.18+GDCM2.0 versions.

I don't know if it's just a GDCM problem or if it depends on how ITK uses
GDCM.

Thanks for your attention,

Roger
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