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Old 09-27-2007, 07:09 AM   #1
john_b
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Join Date: May 2006
Location: Scottish Borders, UK
Posts: 208
Default greyscale images: TIFF v JPG

I thought I was reasonably familiar with features of the main image file formats. I wondered, though, about storing greyscale images since I'm intending to scan in some old family (b/w) negatives.

I think I'm right in supposing that if I scan in 16-bit greyscale mode then TIFF is quite suited for that. But is it necessarily the case that JPG - even though it has 3 x 8-bit channels available - can only ever store greyscale images in a maximum of 256 shades of grey?

File sizes are not an issue in this case, but on the face of it JPG is just not suited for greyscale - or have I missed something?

Grateful for any advice.
John
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