Page 18 - CS6_PS_Look_Inside

If you can’t find out ahead of time, or if you’re unsure, follow these general guidelines:

• Newspaper or newsprint: 85–100 lpi
• Magazine or general commercial printing: 133–150 lpi

• Premium-quality-paper jobs (such as art books or annual reports): 150–175 lpi;
some specialty jobs might use 200 lpi or more

Image Resolution
When a printer creates halftone dots, it calculates the average value
of a group of pixels in the raster image and generates a spot of
appropriate size. A raster image’s resolution — measured in pixels
per inch (ppi) — determines the quantity of pixel data the printer
can read. Regardless of their source — camera, scanner, or files
created in Photoshop — images need to have sufficient resolution so
the output device can generate enough halftone dots to create the
appearance of continuous tone. In the images to the right, the same
raster image is reproduced at 300 ppi (top) and 72 ppi (bottom);
notice the obvious degradation in quality in the 72-ppi version.
Ideally, the printer will have four pixels for each halftone dot
created. The relationship between pixels and halftone dots defines the
rule of resolution for raster-based images — the resolution of a raster
image (ppi) should be two times the screen ruling (lpi) that will be
used for printing.
For line art, the general rule is to scan the image at the same
resolution as the output device. Many laser printers and digital presses
image at 600–1200 dots per inch (dpi); imagesetters used to make
printing plates for a commercial press typically output at much higher
resolution, possibly 2400 dpi or more.

open A file froM Adobe bridge
Adobe Bridge is a stand-alone application that ships and installs along with Photoshop.
This asset-management tool enables you to navigate, browse, and manage files anywhere
on your system. If you have the entire Adobe Creative Suite, Bridge can also help stream-
line the workflow as you flip from one application to another to complete a project. Note:
Adobe Bridge is a
1. Download PS6_RF_Project1.zip from the Student Files Web page. complete stand-alone
application. However,
2. Expand the ZIP archive in your WIP folder (Macintosh) or copy the archive this is a book about
contents into your WIP folder (Windows).
Photoshop, not Bridge.
This results in a folder named Movie, which contains all of the files you need for this We’re simply introducing
project. You should also use this folder to save the files you create in this project. you to the Bridge
If necessary, refer to Page 1 of the Interface chapter for specific information on interface and showing
expanding or accessing the required resource files. you how to use Bridge
to navigate and access
3. In Photoshop, open the Mini Bridge panel. files. We encourage
you to read the Bridge
If you are working from the default Essentials workspace, the Mini Bridge panel is
docked at the bottom of the document window (grouped with the Timeline panel). documentation (accessed
in the Help menu when
If the Mini Bridge panel is not currently visible, you can open it by choosing you are in the Bridge
Window>Extensions>Mini Bridge. application).

26 Project 1: Composite Movie Ad