No announcement yet.

Resource on color in the digital world

  • Filter
  • Time
  • Show
Clear All
new posts

  • Resource on color in the digital world

    What's a good resource (book, website) on color in the digital world?

    I'm trying to gain technical knowledge on the retouching side of things. One area I'm struggling with is digital color. For example:
    1. How does a pixel get its color?
    2. How do color models and color profiles work?
    3. What is gamma and how does it work? Is it still relevant in the digital world?
    4. How do RGB, CMYK, Lab, HSL, HSV and HSB relate to each other?
    5. Why does RGB(128, 128, 128) equal to a 54 Lightness value in Lab?
    6. What's the difference between luminance, luminosity, luma, intensity, value, brightness and lightness?
    7. I read that Photoshop's Luminosity blending mode was misnamed. Why?

    The list goes on and on.

    Wikipedia is a source of confusion, maybe I need a slightly less technical introduction. What's the best way to learn about these things?

    Any help is greatly appreciated.

  • #2
    Re: Resource on color in the digital world

    You will find quite a lot of information that will answer many of your questions here
    Digital Dog: You have come to the right site for information on one-on-one training in: Adobe Photoshop, Color Management, Electronic Imaging, Digital Imaging. At this site you will also find articles on imaging written by Andrew Rodney (The Digital Dog) for Photo Electronic Imaging Magazine. You will also find Tips & Tricks, FAQs, other articles, how-to's, LINKS , and many other useful resources. digitaldog


    • #3
      Re: Resource on color in the digital world

      Originally posted by Tony W View Post
      You will find quite a lot of information that will answer many of your questions here
      Thanks, looks excellent! More suggestions are welcome.


      • #4
        Re: Resource on color in the digital world

        Hi mcdronkz

        Check out the tutorials from this web site:


        • #5
          Re: Resource on color in the digital world

          Photoshop's name is 'wrong' because Luminance (Luminosity) is a measure of the total radiant energy from a body. It has nothing to do with what a human perceives but rather describes the total radiant energy, such as watts/second of a source (the surface of a radiating object like a display). In Photoshop, the layer mode called luminosity is not what's occurring (I was told its something like the "Luma" which is an old TV RGB transform). If the luminance of a viewed light source is increased 10 times, viewers do not judge that the brightness has increased 10 times. Brightness is a perceptual phenomena.

          Lightness is a perceptually scaled component of color, the axis seen in Lab (Lstar) from light to dark. It IS the L in HSL.


          Related Topics


          • Shoku
            Digital Artist Requirements
            by Shoku
            While it is expected for a digital artist to have quality skills in Photoshop and a keen eye for color, knowledge regarding technical aspects related to color is extremely helpful, especially when preparing files for off-set printing.

            Here are 25 questions every digital artist should...
            06-27-2012, 01:10 PM
          • macca2009
            Famous/Popular Digital Artists
            by macca2009
            I'm currently in the process of putting together a presentation in one of my classes on a person/people that are very successful in my field of interest DIGITAL ART.

            Any suggestions on people that do it for a profession???
            07-21-2009, 02:18 AM
          • TwinbNJ
            2003 08-18 - 08-22 Digital Printmaking Workshop Santa Fe
            by TwinbNJ
            The digital printmaking process gives imagemakers complete control over the creative process, reflecting each artist's own craft and vision. Approaching the digital world and Photoshop™ techniques from a photographer's perspective, this hands-on workshop investigates the latest significant developments...
            07-09-2003, 12:16 PM
          • scrapbookbooks
            Digital Ice, plug ins
            by scrapbookbooks
            I have a bunch of photos I need to fix for a customer. They all have the same problems. I used curves, levels, all the standard stuff. I haven't done restoration for a while and am a bit rusty. I really want a scanner with Digital Ice, but I want it for photos and slides. The research I did turned up...
            11-21-2005, 01:35 PM
          • Guest's Avatar
            Duggal Digital
            by Guest
            02-11-2007, 04:22 AM