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Digitalna boja

Digitalna boja. prof. dr. sc. Klaudio Pap. spektralna boja: valna dužina : Ljubičasta 400 –450 Plava 450 –500 Zelena 500 –570 Žuta 570 –590 Narančasta 590 –610 Crvena 610 –700. RGB –sustav R –red G –green B –blue. –aditivni sustav boja - 3 primarne boje 8 bita po kanalu

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Digitalna boja

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  1. Digitalna boja prof. dr. sc. Klaudio Pap

  2. spektralna boja: valna dužina: Ljubičasta 400 –450 Plava 450 –500 Zelena 500 –570 Žuta 570 –590 Narančasta 590 –610 Crvena 610 –700

  3. RGB –sustav R –red G –green B –blue –aditivni sustav boja - 3 primarne boje 8 bita po kanalu 256 ×256 ×256 = 16.777.216

  4. CMYK –sustav C –cyan M –magenta Y –yellow K –black • subtraktivan sustav • smjesa pigmenata apsorbira određene valne duljine • 8 bita po kanalu • 256 ×256 ×256x256

  5. HSB –sustav (varijacije HLS, HSV) H –hue ... spektralna boja S –saturation ... zasičenje B –brightness ... svjetlina S –koliko je boja čista – bez nečistoča B –koliko je boja svjetla ili tamna

  6. Idealizirane osnovne boje

  7. Prirodne boje - spektralno šire i s blažim rubovima

  8. Mogući opsezi obojenja

  9. Reprodukcija boje Aditivna : Npr. TV i računalni monitori. Neki projektori upotrebljavaju rotirajuće kolorne filtre za trenutna mješanja Subtraktivni: Npr. tisak u boji, digitalni tiskarski sustavi

  10. RGB komponente

  11. CMYK komponente

  12. Pantone standard • mat (uncoated) • - premazni (coated) • - procesni • - spot • - metalik • - ...

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