JPEG Gamma

Posted by Joachim Wesner on Oct 21, 2008; 7:51pm
URL: http://imagej.273.s1.nabble.com/oval-profile-plug-in-tp3694664p3694665.html

Hi there,

sorry but I do not seem to easily find the answer:

If I read in a JPEG file, will ImageJ correctly take into account that the
Intensity data are stored nonlinearly with a gamma of (around) 2.2?

I wonder because actually that would mean reading aJPEG needs to create at
least a 16Bit image (not an 8Bit) to avoid loosing dynamics.

I could not find details in the sourcecode, as the JPEG reader seems to
rely on Java JDK )or similar) code.

Sincerely

Joachim







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