Re: Decimal precision in Photoshop's info palette
Re: Decimal precision in Photoshop's info palette
- Subject: Re: Decimal precision in Photoshop's info palette
- From: Martin Orpen <email@hidden>
- Date: Sat, 20 May 2006 14:39:29 +0100
On 20 May 2006, at 2:09 pm, Graeme Gill wrote:
Of course there is no real technical barrier to displaying and
allowing entry of both representations.
But the fact that you can't in that application illustrates the
technical barriers that Photoshop has had to cope with during its
development.
To specify a colour outside of 8 bit when working in high-bit
requires kludges.
You either generate your chosen colour via an elaborate method of
creating a new document and filling it with a blend between two
adjacent 8-bit colour values - and then sample the result with the
eye dropper.
Or your input the required colour value using a script. But this
isn't easy either because you need to input the value as a decimal
while viewing the result as a 15-bit + 1 level RGB value :-(
The scripting problem using decimals *isn't* really a problem with
AppleScript (although the length of some of the decimals is).
Photoshop will not give up the colour values in any other form other
than decimals.
I would guess that this makes things easier for Photoshop itself
because the input values will work in *any* colour space and *most*
bit depths. If you tried to directly input a value higher than 32,768
in 16-bit RGB it'd just choke because it can't really do 16-bit. (I'm
aware that you know all this already Graeme as ISTR that we've had
this discussion here before and covered topics like register shifting
etc)
Certainly PS should allow the direct input (and the display or
output) of values outside of 8-bit. Just add it to the massive list
of reasons that PS is long overdue for a ground up re-write.
Regards
--
Martin Orpen
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