Working with images

Most people would agree that images brighten up the world. Advertising, through the use of both still and moving images, demonstrates that images can be powerful, emotive and persuasive when used for commercial purposes. Images, still and moving, enhance learning and have a direct impact on long term memory.

The list below looks at some of the types and purposes of images:

Digital image file
A representation of a 2-dimensional image using digital format (binary code consisting of ones and zeros). The term usually refers to bitmap (raster) images consisting of pixels.
Vector image file
A digital image file made up of geometrical elements such as points, lines, curves, and shapes or polygons.
Bitmap image file
A digital image file made up of pixels or very fine dots, typically used for photographic images.

TYPES OF IMAGES
Still image	Photographs, artworks, diagrams, illustrations. May be produced by hand (painting, drawing) or with a camera (35mm film, digital, compact or slr, home user or professional. Monochrome (black and white, greyscale) or colour. Diagrams and illustrations may be produced by hand or with the help of software packages.
Moving image	Film and video footage, movie clips, animations (all of which may or may not include sound). May be produced with a camcorder, mobile phone, or through software for animation eg. Flash movie, animated gif.
Movie file	A sequence of images with movement on a timeline.
USE AND PURPOSE -
Decoration	Add interest and colour to something.
Illustration	Demonstrate a point, fact or opinion.
Recording memories	Images to keep a record of something.
Learning aids	Assist in concept development.
Entertainment	Add enjoyment and fun.
Advertising and marketing	Images for promotion.
Add/maintain interest	Images break up text and add interest.
Create an emotional response to something	Images for emotion and mood.
Make comparisons	Contrast one image with another.
Convey information	Display information and facts through images.