Re: Color correction in Photoshop

2002-04-27 Thread Paul Stenquist

The eyedroppers for setting black, gray and white points are in
levels. Are they in curves as well? I use levels to get close,
then if I have to reduce a red, blue or green cast or alter the contrast
slightly, I do it in curves. If I'm still not happy with all the colors
or if I feel the blacks aren't strong enough, I go to Selective Color.
I've found adding four or five percent black to the blacks in Selective
Color will provide a bit more contrast without losing any highlight
detail. Or if I want really deep reds, I'll add a few percentage points
of black to the red. The guys who run those amazing machines like the
Rank and Millenium, which are used to transfer moving picture film to
digital, frequently use black to pump up colors. PhotoShop works a lot
like those machines. I think both evolved from the same technology.
Paul


Butch Black wrote:
 
 Try this. Go to levels, open each of the three colors separately take the
 end sliders and bring them to where the histogram begins. After that open
 curves. If you have something that is black or white in the image click on
 the proper eyedropper and click that spot. If you have something that you
 know is supposed to be medium neutral gray you can use that eyedropper, but
 I've had less success with that. If it doesn't look right hold down the alt
 key and the cancel turns into reset. When you're happy go back to levels in
 the RGB screen and adjust the middle slider to set your gamma (midtone).
 
 I highly recommend the video color correction made easy by Jeff Kelby
 which can be ordered at: www.photoshopuser.com
 
 BUTCH
 
 Each man had only one genuine vocation - to find the way to himself
 Hermann Hesse (Demian)
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Color correction in PHotoshop

2002-04-26 Thread Albano_Garcia

HELP!
What do you use for color correction. I find curves a nightmare. There is a
way to use levels to do this? I've to use the eyedropper?
Thanks in advance

AG
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Re: Color correction in PHotoshop

2002-04-26 Thread Mishka

Levels are fine for most purposes. 
My usual workflow is
-- add a threshold layer
-- set the threshold to the max dark. that would show you the lightest
spots, your white point selection. 
-- with the eye-dropper, mark the spots
-- do the same moving threshold to the max white. here's your white
point
-- open the levels, set the white, black and grey points with the
levels' eyedropper
-- fix the gamma.
this usually takes about than 5 min/scan and covers most situations.

On Fri, 26 Apr 2002 09:43:27 -0300, [EMAIL PROTECTED] said:
 HELP!
 What do you use for color correction. I find curves a nightmare. There
 is a
 way to use levels to do this? I've to use the eyedropper?
 Thanks in advance
 
 AG

  

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Re: Color correction in PHotoshop

2002-04-26 Thread Flavio Minelli

Albano,

1st try (more difficult but precise):
Image -- Adjust -- Color Balance (Ctrl+B) and adjust the levels
separately for CMY and Hilight/Midtones/Shadows. It's a bit tricky but
it works fine.

2nd try (more visual)
Image -- Adjust -- Variations, same stuff but with thumbnails and
Saturation controls. You can set the unit of variation.

HTH, Flavio
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Re: color correction in photoshop

2002-04-26 Thread Albano_Garcia

Mishka wrote:
Levels are fine for most purposes.
My usual workflow is
- -- add a threshold layer
- -- set the threshold to the max dark. that would show you the lightest
spots, your white point selection.
- -- with the eye-dropper, mark the spots
- -- do the same moving threshold to the max white. here's your white
point
- -- open the levels, set the white, black and grey points with the
levels' eyedropper
- -- fix the gamma.
this usually takes about than 5 min/scan and covers most situations.

/ There's more than one eyedropper. Which one should I use?

Albano
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Re: color correction in photoshop

2002-04-26 Thread Nick Wright

Albano,
The methods that I have seen all the others tell you to use, are very
complicated, and I believe quite unnecessary. Are you wanting to color
correct for a fine art type print? Or do you just want to see good color on
your monitor and small prints for yourself? Anyway, here's what I do
everyday at the paper for every picture that I work. After scanning the neg,
I will open Levels and click Auto Nine times out of ten (you must have the
preview box checked to see the effects), simply doing that will give me
just what I want. If the colors are still off, I will click on the white
eyedropper (on the levels menu), and click on a portion of the image that I
know to be white (if you are having trouble clicking just the part that you
want hit tab to go to the precise cursor). If the colors are still off
after that I will do the same with the black eyedropper. If the colors are
~still~ off, I will adjust each individual channel. To adjust an individual
channel simply select the channel that you want to adjust from the drop down
menu over the histogram. Then use the grey slider under the histogram to
adjust that particular color, if you move it to the right (I think) it will
take away that particular color, if you move it the other way it will add
that color. Feel free to ask any more questions you have...
--
Nick Wright
http://www.wrightfoto.com/

--
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: Re: color correction in photoshop
Date: Fri, Apr 26, 2002, 12:12 PM


 Mishka wrote:
 Levels are fine for most purposes.
 My usual workflow is
 - -- add a threshold layer
 - -- set the threshold to the max dark. that would show you the lightest
 spots, your white point selection.
 - -- with the eye-dropper, mark the spots
 - -- do the same moving threshold to the max white. here's your white
 point
 - -- open the levels, set the white, black and grey points with the
 levels' eyedropper
 - -- fix the gamma.
 this usually takes about than 5 min/scan and covers most situations.

 / There's more than one eyedropper. Which one should I use?

 Albano
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Re: color correction in photoshop

2002-04-26 Thread Mishka

To sample the color (when the treshold layer was added) use the color
sampling tool, this is one of the eyedroppers in the tools pallette,
the one with the spot on top of it.
To set the white/black/grey points once you opened the levels, use the
eyedroppers in the levels dialog (white/half-black/black, respectively)

On Fri, 26 Apr 2002 14:12:58 -0300, [EMAIL PROTECTED] said:
 Mishka wrote:
 Levels are fine for most purposes.
 My usual workflow is
 - -- add a threshold layer
 - -- set the threshold to the max dark. that would show you the
 lightest
 spots, your white point selection.
 - -- with the eye-dropper, mark the spots
 - -- do the same moving threshold to the max white. here's your white
 point
 - -- open the levels, set the white, black and grey points with the
 levels' eyedropper
 - -- fix the gamma.
 this usually takes about than 5 min/scan and covers most situations.
 
 / There's more than one eyedropper. Which one should I use?
 
 Albano
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Re; Color correction in Photoshop

2002-04-26 Thread Butch Black

The author of the video is Scott, not Jeff Kelby. Sorry

Butch
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