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Riistvara ja multimeedia

Riistvara ja multimeedia. Joosep Simm Veebruar 2003 TMK. Loengu I osa. Skänner Digikaamera Digilaud TouchScreen. Skänner. Skänneri tüübid. Flatbed Sheet-fed Handheld Drum. CCD. Charge-coupled device. Lamp. Mootor. Skännimine. Single pass Three pass. Resolutsioon.

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Riistvara ja multimeedia

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  1. Riistvara ja multimeedia Joosep Simm Veebruar 2003 TMK

  2. Loengu I osa • Skänner • Digikaamera • Digilaud • TouchScreen

  3. Skänner

  4. Skänneri tüübid • Flatbed • Sheet-fed • Handheld • Drum

  5. CCD Charge-coupled device

  6. Lamp

  7. Mootor

  8. Skännimine • Single pass • Three pass

  9. Resolutsioon • Mõõdetakse dpi (dots per inch) • Tavaliselt 600*600 dpi • 14,000 x 14,000 dpi • “Interpolation” – tekitatakse tarkvaraliselt piksleid juurde

  10. Bit depth • Eesti keeles: värvi sügavus • 24 bitti tavaliselt • Levivad veel 30 ja 36 bitised skännerid

  11. Ühenduse liigid • Paralleel kaabliga • SCSI (small computer system interface) • USB • FireWire

  12. Draiverid • TWAIN • Ei ole lühend • “Technology Without An Interesting Name”

  13. Digikaamerad

  14. Digikaamera • Pilti püüab nagu skännergi (CCD) • Lisaks CCD’le kasutatakse CMOS tehnoloogiat

  15. CMOS vs. CCD • CMOS – igal sensoril oma transistor • CCD – igalt sensorilt viiakse laeng ühe transistori juurde • CMOS on odav, aga halvema kvaliteediga • CCD võtab ~100 korda rohkem voolu kui CMOS

  16. Digitaallaud

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