Re: nothces on the L* axis
Re: nothces on the L* axis
- Subject: Re: nothces on the L* axis
- From: Marco Ugolini <email@hidden>
- Date: Wed, 12 Dec 2007 21:23:54 -0800 (GMT-08:00)
Eugene Appert wrote:
>Should I expect to see a line between L* 1.1 and L* 1.2 ?
>between L* 16, 700, and 16, 720?
Eugene, you should expect nothing that you cannot perceive or measure or decide not to expect. I certainly was not either saying or implying that these 8-bit "imprecisions" have a *necessarily* visible effect on the results. Possibly, if they are somehow compounded, they may, but in most cases they probably do not.
But that was not my point. It was that in a 0-100 scale in 8 bits there occurs a *mathematically necessary* rounding-up of values to the nearest integer. The largest amount of rounding up happens at level 88, which becomes 35% in a 0-100 scale, with an imprecision of 0.49% (34.51 becomes 35). Period. Now, those are *facts*.
How important are they? You decide. For you it's unimportant? Fair enough. To others in this forum this may be something they didn't know or hadn't had a chance to think through. We are here with the intent to share knowledge, and that ideally goes both ways.
In any case, I apologize if this digression took away from the focus of the thread.
Marco Ugolini
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