Introduction toVector Images

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Vector Images

Today’s Objectives• Define the term resolution independent• Discus characteristics of vector images• Identify art suitable for vector based creation• Use Illustrator tools to create and fill simple objects• Convert text to objects or outlines

Characteristics of Vector Images

• Clean, crisp, sharp lines

• Based on vectors (mathematical) formulas

• Object oriented– Lines, arcs, curves

• Resolution independent

• Type/Text in Quark is vector

• Save as eps. files (meta files)

Characteristics of Vector Images

• Vector graphics are resolution independent– can be reduced or enlarged without loss of image

quality

X243Y1÷(8.6√3.147)±12.11X686Y1÷(9.3√3.384)±17.11

Characteristics of Vector Images• Paths are made up of two or more points

connected by line segments

open path

closed path

Characteristics of Vector Images

• Apply color– Fill objects or text with

color, blends, or patterns

• Drawing tools– Draw straight lines, boxes,

circles, and freeform

Advantages of Vector Images

• Good resolution– Uses resolution of output device (rasterize)– Eliminates the jaggies seen in bitmap images

PhotoShop @1200% Illustrator @1200%

Advantages of Vector Images

• Smaller file sizes– Images defined by xy coordinates

Challenges of Vector Images

• Learning curve (pen tool)• Best for non-photographic images

– Illustration art

– Logos

• Screen rendering is bitmapped– wysi NOT wyg

• Non-PostScript printers– RIP software is available

Purpose of a Logo

• Graphical reminder of the group it represents

• Needs to:– Convey the organization in a positive manner– Memorable & recognizable at a glance– Unique and distinguishable from competition– Work for all organizational applications

Types of Logos

• Two basic types of logos– Image Based

• Pictogram

• Ideogram

• Abstract

– Typographic

Types of Logos• Pictogram

– Representation of any single thing– Provides a direct interpretation of the design– Best used for organizations with single product– Need to make sure image relates to the organization

(ex.) Publishing company might use a logo with a book

Types of Logos

• Ideogram

– Image represents idea

– More difficult to design

– Different people may perceive it differently

– Requires additional research during design stage

(ex.) Logo for AT&T

Types of Logos

• Abstract– The image does not represent any single concept– Used when an organization has many products– Created to give a dynamic look– Most common type of logo used today

(ex.) Nike, Target

Types of Logos• Typographic

– Create a unique version of organization’s name

– Typeface captures the personality of the organization

– Should use a custom typeface

(ex.) Ford, Wal-Mart, Conversa

Types of Logos

• Combinations– Oftentimes include abstract and typographic

elements

(ex.) Electrical Digest,Betty Crocker, Adobe

How are they the same/different?

How are they the same/different?

How are they the same/different?