Preparing Images for Two-Color Printing

Incarcat la data: 26 Iunie 2012

Autor: manu manuela

Pret: Gratuit

Numar pagini: 21

Tip fisier: zip

Marime fisier: 737 kb

In this lesson, you’ll learn how to do the following:
• Convert a color image to monochrome, and improve its overall quality.
• Adjust the tonal range of the image by assigning black and white points.
• Sharpen the image.
• Convert a color image to grayscale.
• Add spot color to selected areas of the image.


This lesson will take about 45 minutes to complete. The lesson is designed to be done in Adobe Photoshop. ImageReady does not support channels or spot color. If needed, remove the previous lesson folder from your hard drive, and copy the Lesson13 folder onto it. As you work on this lesson, you’ll overwrite the start files. If you need to restore the start files, copy them from the Adobe Photoshop Classroom in a Book CD.


Printing in color
Color publications are expensive to print commercially because they require four passes through the press - one for each of the four process colors used to create the full-color effect. The colors in the publication must be separated into cyan, magenta, yellow, and black plates for the press, which also adds to the expense.

Printing images in two colors can be a much less costly yet effective approach for many projects, even if they begin with an image in full color. With Photoshop, you can convert color to grayscale without sacrificing image quality. You can also add a second spot color for accent, and Photoshop will create the two-color separations needed for the
printing process.

Note: Spot color is intended for images that will be printed to film during the printing process. The spot color techniques covered in this lesson are not appropriate for color images printed to desktop printers or for images designed for electronic distribution.

 

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