Re: notches on the L*axis
Re: notches on the L*axis
- Subject: Re: notches on the L*axis
- From: MARK SEGAL <email@hidden>
- Date: Tue, 11 Dec 2007 09:01:21 -0500 (EST)
Marco,
You've touched on a very interesting question here. I believe it goes beyond what is displayed and into how the program works. You can change the read-out alright, but the adjustments still work in discrete intervals of +1 from 0 to 255, which implies that every tweak of a curve in "16-bit" mode (say using one of the keyboard arrows) is actually moving the value roughly by 32768/255 = about 128 levels at a time, or 0.39%. Maybe it's just a bit "anal", but I've often come across situations where I would have liked to adjust a curve to a value between a pair of tweaks.
Mark Segal
Marco Ugolini <email@hidden> wrote:
In a message dated 12/9/07 1:17 AM, Klaus Karcher wrote:
> There's a tiny pipette icon in Photoshop's Info palette. You can use it
> to adjust the precision Photoshop displays:
>
> - "8bit" shows the usual integer values in the rage of 0...255 for RGB
> and rounded percentages for CMYK or grayscale
>
> - "16bit" displays values with Photoshop's internal "16bit"-precision
> (0...32768)
>
> - "32bit" displays floating point values between 0 and 1 with 3 decimal
> places
Unfortunately, though, there is still no way to show *decimal* values in
0-255 or 0-100 notation, though it could be done very easily by the program
using the least uncomplicated of equations (a simple division).
It's one of those things whose unjustifiable absence leaves one wondering
what could be the reason why it's not being offered quite yet.
Marco Ugolini
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