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Raster vs Vector. Rastor. Paint Pixel Resolution dependent PhotoShop Painter etc. Resolution. DPI vs PPI and Linescreen 72ppi file each inch- 72x72=5,000pixels File size decisions should be made on output choice Compression and scanning issues FPO (print low res). Vector. Draw
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Raster vs Vector Spring 2001
Rastor • Paint • Pixel • Resolution dependent • PhotoShop • Painter • etc Spring 2001
Resolution • DPI vs PPI and Linescreen • 72ppi file each inch-72x72=5,000pixels • File size decisions should be made on output choice • Compression and scanning issues • FPO (print low res) Spring 2001
Vector • Draw • Path based (Bezier curves) • Object oriented • Resolution independent • Post Script - Type • Illustrator, Freehand, (Fireworks) Spring 2001
Raster vs Vector Spring 2001
Digitizing Images (Scanning) • Raster or Vector? • Resolution and Scanners • Low end = 300x600ppiCost $1,00 • Midrange = 600x1200ppi Cost >$200-1,000 • High end = 1200x1800ppi Cost >$10,000 Or more! $$$ and ppi Spring 2001
Original Art vs Output • Start with a good quality original • Correcting flaws is time consuming! • Know the output or end product before you scan • Scan at the output resolution • How much information? Spring 2001
Original Art vs Output • Video or WEB output • 100% at 72ppi • Slide output • Consult film recorder for correct page setup size (pixel x pixel) • Must be high resolution • Why? Spring 2001