lossless jpeg supported bit depths

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Vojtech Bubnik
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lossless jpeg supported bit depths

#1 Post by Vojtech Bubnik » Thu, 2004-12-02, 12:40

Hi,
we have to interface our DICOM application with the GE CT, which does generate unusual 15 bit grayscale lossless jpeg images, which is perfectly correct according to the DICOM norm.
I am not sure, if the combination of patched IJG JPEG implementation compiled for 8, 12 and 16 bits could decode this kind of data stream. Could You please give me a hint?
Thanks

Marco Eichelberg
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#2 Post by Marco Eichelberg » Fri, 2004-12-03, 09:17

The patched IJG JPEG implementation should be able to decode anything between 2 and 16 bits for lossless JPEG, it will just be unable to create a compressed stream with 15 bits/sample (this would be padded to 16).

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