Skip to Main Content
An Introduction to Digital Multimedia
book

An Introduction to Digital Multimedia

by T.M. Savage, K.E. Vogel
October 2008
Beginner content levelBeginner
335 pages
13h 31m
English
Jones & Bartlett Learning
Content preview from An Introduction to Digital Multimedia
130 Chapter 6 Graphics
Upsampling is used to enlarge the physical dimensions of an image on a given device.
Figure 6.15 shows a dialog box from Photoshop in which image dimensions were
increased from 20 3 20 to 30 3 30 using resampling.
Since the image was enlarged, upsampling was required
to produce the additional pixels. The “pixel dimensions,”
or number of pixels described in the file, increased from
300 to 450 while the file size increased from 88K to198K.
Upsampling is also used to maintain the original physi-
cal dimensions of an image when it is produced on
another, higher resolution device. For example, an image
that ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

An Introduction to Digital Multimedia, 2nd Edition

An Introduction to Digital Multimedia, 2nd Edition

T.M. Savage, K.E. Vogel
IBM System Storage DS3500 Introduction and Implementation Guide

IBM System Storage DS3500 Introduction and Implementation Guide

Sangam Racherla, Reza Fanaei Aghdam, Hartmut Lonzer, L G (Len) O'Neill, Mario Rodriguez, Vaclav Sindelar, Alexander (Al) Watson

Publisher Resources

ISBN: 9780763750527