Basics Theories / Color Profiles
Subtitles of the Movie
Now you may have heard reference to the term Adobe RGB and sRBG when discussing color settings on your digital camera. The explanation for these different color spaces, or gamuts as they are known, is very easy. Let's take a look at the graphic here showing the different color spaces and how they are different. Notice here the colors shown are all of the colors visible to the human eye. The colors within the white outline are the colors that are shown by the sRGB color space. Now this is the color space commonly used on the Internet because most LCD computer screens can only display the colors contained within this limited color space. Now since this compatibility with LCD computer monitors is the goal of viewing standards for the Internet, sRGB is very pervasive and the default color space for JPEG images. sRGB by the way can only show about 35 percent of what the human eye can see and the Adobe RGB color space shown here in black outline contains about 50 percent of what the human eye can see. Obviously, the Adobe RGB color space is substantially broader and includes more of the colors detectable by the human eye. Now virtually all digital cameras have the ability to choose between sRGB and Adobe RGB when capturing images. If your use is 100 percent Internet, then of course, sRGB is all you need. However if you might print the images you would want to set your camera on the Adobe RGB color space. Now when processing an image originally taken in Adobe RGB you can set your software to import the image, changing it to the sRGB color space, thus making it possible for you to do your processing accurately for Internet use. On the other hand, if you take your shot in sRGB you cannot then switch to Adobe RGB and expect the color space to broaden to include the other colors. You can go one way, but not the other. Now, by way of comparison here's the gamut that's reproducible by the Fuji Frontier Laser Color Printer. This image shows the reproducible gamut by high-end inkjet printers now available on the market. Now we're getting just a bit ahead of ourselves but here's how to change the color space in Elements. Come up here to Edit, come down to Color Settings, and then you'll have basically three choices here, but two are really the only ones that matter, and that is Always Optimize Colors for Computer Screens, and this is just another way of saying they're going to take it to the sRGB color space. If you choose this, always Optimize for Printing, then you will see it reflected as the Adobe RGB color space and it's as simple as that. You choose the one that you're going to be dealing with, hit OK, and everything is done from that point forward and it's as simple as that.
Tutorial Information
| Course: | Adobe Photoshop Elements 7 |
| Author: | Phil Hawkins |
| SKU: | 34003 |
| ISBN: | |
| Release Date: | 2009-06-18 |
| Duration: | 8.5 hrs / 118 lessons |
| Captions: | Available on CD and Online University |
| Compatibility: |
Vista/XP/2000, OS X, Linux QuickTime 7, Flash 8 |
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