User`s guide

B-4 Microtek ScanWizard 5 User's Guide (Macintosh version)
A Word about Source and Destination
People often get confused about what is the “source” of an image and what is its “destination,” so
let’s clarify this.
In general, the “source” of an image refers to where the image currently is, and the “destination” is
where you want the image to go.
In CMS terms, “source” means the Color Profile used to bring the image data into the Profile
Connection Space (PCS). “Destination” means which Color Profile is used to get it from PCS to the
destination device. For example, when you scan in an image, you want it to appear on your monitor.
So the source is your scanner, and its related Color Profile, and the destination is your monitor,
using its Color Profile.
Likewise, when you open a Photo CD image, the source is the Photo CD, plus the Color Profile that
relates the color data to the PCS, and the destination is the monitor, plus the Color Profile that
relates the PCS to the monitor’s color space.
Here’s another example: Let’s say you manipulate the image on your monitor screen, and print it.
The source this time is the monitor (plus the Color Profile that relates it to the PCS), and the
destination is a printer (plus the Color Profile that relates the PCS to the printer’s color space).
So, Source and Destination mirror a logical two-step process most Color Management Systems use
to translate images between device color spaces;
• The Source Profile brings the image into the PCS
• The Destination Profile connects the image from the PCS to the output device, such as a Moni-
tor, Printer, or Proofer.
However, this is not the case with a Kodak CMS.
Kodak has patented its composition technology. This technology takes the Source and Destination
Profiles and composes them into a single color transforming profile.