PWP7.0.5-32bit -- Color Curves channel curve changes

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den
Posts: 856
Joined: April 25th, 2009, 6:33 pm
What is the make/model of your primary camera?: Canon EOS-350D/Fuji X100T
Location: Birch Bay near Blaine, WA USA

PWP7.0.5-32bit -- Color Curves channel curve changes

Post by den »

The following will consistently occur for either 24 or 48 bit color images as Input to the Color Curves transform,,,

(1) open a 24 or 48-bit color image
(2) open Color Curves with Auto Preview checked; select the HSV color space:
...(a) select the V channel; make a curve change. Preview may or may not update. An Apply/OK will produce an image version equal to Preview. If Preview did not update; 'Reset' and duplicate the curve change. Now Preview updates and an Apply/OK will produce an image version equal to Preview.
...(b) repeat (2)(a) for S and H
(3) repeating (2) for the HSL and RGB color spaces and their respective channels produces the same results...

Note: HSV-V seems to be the only channel that makes a curve change properly the first time.

...den...
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den
Posts: 856
Joined: April 25th, 2009, 6:33 pm
What is the make/model of your primary camera?: Canon EOS-350D/Fuji X100T
Location: Birch Bay near Blaine, WA USA

Re: PWP7.0.5-32bit -- Color Curves channel curve changes

Post by den »

Addendum...

You do not have to 'Reset' the channel's change curve if the Preview does not update... ...just click on any one of its control points and move it slightly... ...then the Preview will update.

...den...
jsachs
Posts: 4203
Joined: January 22nd, 2009, 11:03 pm

Re: PWP7.0.5-32bit -- Color Curves channel curve changes

Post by jsachs »

I think I have fixed this, but please retest on the next beta when it comes out.
Jonathan Sachs
Digital Light & Color
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