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What are images?What are images?
Photographs (scanned, downloaded)Pictures (drawn, painted)Movies (videos, animation)
Definition: BitmapDefinition: Bitmap
Bitmapped images:Photographs, computer paintings, videosSpecific number of dots (or pixels) across and down
(160 x 120, 800 x 600, 1400 x 1050)Dots spread out or squeeze together as image size
changesNumber of dots remains the samePhotoshop, Paint, QuickTime
Warning! Warning!Warning! Warning!
DPI is critical!Printers: 300 dpi, 600 dpiMonitors: 72 dpi (Internet pictures)If you download a picture from the Internet to
print out, make sure it’s BIG!
Definition: VectorDefinition: Vector
Vector-based image:Drawings, animationPoints, lines, fill, shapesInstructions to computer Quality remains same as image size changesIllustrator, Word “draw”, Corel Draw