From 8bit to 16bit to interpolate??

AO
Posted By
Andreas_Ommen
Jan 16, 2007
Views
261
Replies
6
Status
Closed
I have a jpeg 8bit picture. I want to make some changes and make it bigger. Would the quality get better if I open the 8bit jpeg, convert it to 16bit and save it as tiff before I start making changes?

Any thoughts?

– A
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16-bit 8bit interpolate

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R
Ram
Jan 16, 2007
Would the quality get better if I open the 8bit jpeg, convert it to 16bit

No. You can’t create what’s not there.
R
Ram
Jan 16, 2007
You could perhaps argue that a 16bit image will give you more latitude to make changes later, but "the quality" will not "get better."
AO
Andreas_Ommen
Jan 16, 2007
Hi Ramón, thanks for your answer!
CP
christoph_pfaffenbichler
Jan 17, 2007
Actually I just had a case where it was usefull: A 8-bit-rgb-picture was massively blown up and then blurred for a background and the separations showed bad posterizations; with the blur done in 16-bit the additional steps really smoothed things.
But this should apply only if additional steps are created (like with a blur).
B
Buko
Jan 17, 2007
or you could just ad noise
CP
christoph_pfaffenbichler
Jan 17, 2007
Sometimes the amount of noise necessary to effectively mask those effects might seem a bit steep though.

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