Adobe Photoshop CS2 CLASSROOM IN A BOOK [Electronic resources] نسخه متنی

What steps should you follow to reproduce color accurately?

What is a gamut?

What is an ICC profile?

What are color separations? How does a CMYK image differ from an RGB image?

What steps should you follow when preparing an image for color separations?

Calibrate your monitor, and then use the Color Settings dialog box to specify which color spaces to use. For example, you can specify which RGB color space to use for online images, and which CMYK color space to use for images that will be printed. You can then proof the image, check for out-of-gamut colors, adjust colors as needed, andfor printed imagescreate color separations.

A gamut is the range of colors that can be reproduced by a color model or device. For example, the RGB and CMYK color models have different gamuts, as do any two RGB scanners.

An ICC profile is a description of a device's color space, such as the CMYK color space of a particular printer. Applications such as Photoshop can interpret ICC profiles in an image to maintain consistent color across different applications, platforms, and devices.

A color separation is created when an image is converted to CMYK mode. The colors in the CMYK image are separated into the four process-color channels: cyan, magenta, yellow, and black. An RGB image, by contrast, has three color channels: red, green, and blue.

You prepare an image for print by following the steps for reproducing color accurately, and then converting the image from RGB mode to CMYK mode to build a color separation.