notes 1-6-10

Painting Bitmapped Graphics

Painting Software.

• paint pixels on the screen with a pointing device
• pointer movements are translated into lines and patterns on the screen
• Stores an image at 300 dots per inch or higher.

Pixels: tiny dots of white, black, or color that make up images on the screen

The Palette of tools mimics real-world painting tools

• Also contains other tools that are unique to computers

Bitmapped Graphics (or raster graphics): pictures that show how the pixels are mapped on the screen.

Color Depth: the number of bits devoted to each pixel

Resolution: the density of the pixels

Digital Photo Management software programs such as Apple Iphoto and and Microsoft Picture IT! simplify and automate common tasks associated with capturing, organizing, editing, and sharing digital images

Drawing software stores a picture as a collection of lines and shapes (called object-oriented or vector graphics)

Memory demands on storage are not as high as for bit-mapped images

Many drawing tools-LIne, shape and text tools are similar to painting tool in bitmapped programs.

Bit-mapped painting (pixels) gives you these advantages:

• More control over textures, shading and fine detail
• Appropriate for screen displays simulation natural paint media and emellishing photgraphs.

Object oriented drawing gives you these advantages:

• Better for creating printed graphs, charts, and illustrations
• Lines are cleaner and shapes are smoother.

Computer Aided Design (CAD) software

• Allows engineers, designers, and architects ot create designs on screen for products ranging from computer chips to public building
• Can test products prototypes
• Cheaper, Faster, and more accurate than traditional design-by-hand techniques

Computer aided manufacturing (CAM) is the process by which data related to the product designs are fed into a program that controls the manufacturing of parts

Computer Integrated Manufacturing (CIM) refers to the combination of CAD?CAM and is a major step toward a fully automated factory.

Rules of Thumb: Making Powerful Presentations

• Remember your goal
• Remember your audience
• outline your ideas
• be stingy with words
• keep it simple
• Use a consistent design
• Be Smart with Art
• Keep each slide focused
• Tell them what you going to tell them, then tell them, then tell them what you told them.

Dynamic Media: Beond the printed Page

Desktop Video:computer, Film and Tv

Analog and digital Video

• A video digitizer can convert analog video signals for a tv broadcast or videotape into digital data.

Many video digitizers can import signals from tv, videotaps, video caameras, and other sources

• Signals displayed on the computers screen in Real Time- at the same time they're created or imported

Digital video cameras capture footage in digital

Digital vide can be copied, edited, stored, and played back without any loss of quality

Digital vido will soon replace analog video for the most applications