Chapter 6: Graphics, Digital Media, and Multimedia

Tim Berner's-Lee Weaves the Web for Everybody
-born in London 1955
-Wanted to create an openended distributed hypertext system wuth no boundries so scientists everywhere could link their work together
-Invented the WWW and gave it to all
-Now works at MIT
-Heads the WWW Consortium (W3C)
Painting: Bitmapped Graphics: Painting Software:
-Paints 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 of higher
Pixels: tiny dots of white, black, or color that make up images on the screen
Paletter: of tools mimics real worls painting tools (also contains other tools that are unique to computers)
Bitmapped Graphics(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
Image Processing: Photographic Editing by Computer
-allows the user to manipulate photographs and other high resolution images with tools such as Adobe Photoshop
-Far more powerful than traditional photo-retouching techniques: can distort and combine photos as demonstrated in the tabloids
-can create fabricated images that show no evidence of tampering
-Digital Photo Management Software programs such as Apple iPhoto and Microsoft Pictureit! simplify and automate common tasks associated with captureing, organizing, editing, and sharing digital images.
-Drawing Software stores a picture as a collectin og lines and shapes (object oriented/vector graphics)
Memory demands on storageare not as hign as for bitmapped images
-many drawing tools line, shape, and text tools are similar to painting tools in bitmapped programs.
Post Script: a standard page description language for describing text fonts, illustrations and other elements of the printed page
-used by professional drawing programs such as Adobe Illustrator and Macromedia Freehand
-built into many laser printers and other high end out put devices so those devices can understand and follow Post Script Instructions
-Post Script based drawing software constructs a Post Script program as the user draws.
Bitmapped paintings(pixels) gives you these advantages:
-more controls over textures, shadins, and fine detail
-appropriate for screen displays, simulating natural paint media and embellishing photographs
-object-oriented drawing gives you thses advantages:
-better for creating printed graphs, charts and illustrations and lines
-Some integrated programs contain both drawing and painting modules
-allows you to shoose the right tool for each job
-Some programs merge features of both in a single application
-blurs the distinction between types
-offers new possibilities for amateur and professional illustrators.
Creating Smart Art
-reprogram yourself...relax
-choose the right tool for the job
-borrow from the best
-don't borrow without permission
-protect your own work