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jpeg quality

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jpeg quality Timothy Jedlicka bonzopad 27 Oct 05:44
  jpeg quality Marc) (A.) (Lehmann 27 Oct 14:02
Timothy Jedlicka bonzopad
2003-10-27 05:44:28 UTC (over 20 years ago)

jpeg quality

Two questions regarding jpeg quality settings: 1. Is a setting of 1 truly equal to a lossless jpg? I've read conflicting stories about this - I suspect not.

2. Is file size the only reason not to use quality=1. It still seems like a bargain compared to tif file size.
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Timothy Jedlicka, bonzo@lucent.com, 1-630-713-4436, AOL-IM=bonzowork Network Entomologist, Lucent Technologies, Testers For Hire

Marc) (A.) (Lehmann
2003-10-27 14:02:07 UTC (over 20 years ago)

jpeg quality

On Sun, Oct 26, 2003 at 10:44:28PM -0600, Timothy Jedlicka bonzopad wrote:

1. Is a setting of 1 truly equal to a lossless jpg?

No.

2. Is file size the only reason not to use quality=1. It still seems like a bargain compared to tif file size.

I think so, too, but it's user-settable.

If you have a colelction of e.g. 2000000 pictures, it's a bargain to use 0.8 or 0.9, too... it all depends on the application and your personal taste.