Fri, Nov 29, 11:08 PM CST

Renderosity Forums / Photoshop

All Forums

Welcome to the Photoshop Forum

Forum Moderators: Wolfenshire Forum Coordinators: Anim8dtoon

Photoshop F.A.Q (Last Updated: 2024 Nov 26 6:58 am)

Our mission is to provide an open community and unique environment where anyone interested in learning more about Adobe Photoshop can share their experience and knowledge, post their work for review and critique by their peers, and learn new techniques while developing the skills that allow each individual to realize their own unique artistic vision. We do not limit this forum to any style of work, and we strongly encourage people of all levels and interests to participate.

Are you up to the challenge??
Sharpen your Photoshop skill with this monthly challenge...

 

Checkout the Renderosity MarketPlace - Your source for digital art content!

 

Subject: Colour correction using a Grey Card

briggsbob opened this issue on Apr 25, 2006 · 2 posts
Back to Forum Print
briggsbob ( ) posted Tue, 25 April 2006 at 12:11 PM · edited Wed, 13 November 2024 at 10:38 AM

I am using PS CS2.

I am attempting to colour correct a digital image.

Suppose you place a grey card in a position within the image you are taking with a digital camera. When you display this digital image in CS2 and sample the colour of the grey card you find that the R G and B are not equal as you could expect but rather only close to equal. As an example they may show:

R = 170 G = 168 and B = 172.

I will pick, let us say, the G = 168 and then attempt to modify for the whole image the R and the B also to 168 so that when I sample the grey card it now reads the same values for the three colours. I guess my question is how do you modify the colour of my whole image by a number, plus or minus, rather than the percentage figure that appears when you use IMAGE/ADJUSTMENTS.

Bob

briggsbob ( ) posted Tue, 25 April 2006 at 12:21 PM

SORRY I posted it to the wrong group. It should have been to PS

Privacy Notice

This site uses cookies to deliver the best experience. Our own cookies make user accounts and other features possible. Third-party cookies are used to display relevant ads and to analyze how Renderosity is used. By using our site, you acknowledge that you have read and understood our Terms of Service, including our Cookie Policy and our Privacy Policy.