Summary
Samenvatting Image Processing
- Course
- Institution
Samenvatting lessen Image Processing gedoceerd door Ingrid Hemelsoet
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jensswaels
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Imageprocessing
samenvatting van Jens Swaels
, Digitale beelden
SOORTEN DIGITALE BEELDEN
» Vectorbeelden
› opgebouwd uit lijnen en vecotoren
› resolutie onafhankelijk
› vergroten zonder kwali verlies
» Pixelbeelden
› opgebouwd uit pixels
› res scherm 72, res print 150, res druk 300 ppi
INTERPOLATIE
is het berekenen van nieuwe pixels doordat het beeld te groot wordt
» Nearest neighbor
› exacte copy van de buurpixel
» bilineair
› mengeling van 4 omringende pixels
» bicubisch
› mengeling van 8 omringende pixels
PIXEL DIEPTE
bits per sample (bps) kanalen (spp) bit/pixel (bpp)
bitmap 1 1 1
grayscale 8 1 8
RGB 8 3 24
CMYK 8 4 32
indexed colour 8 1 8
GEÏNDEXEERDE KLEUR
» verschillende kleuren worden opgeslaan in de kleuren tabel
» max 8 bit
» Gif, PNG-8
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