Raster Image Processor u inkjetu

master's thesis

• Author: Roko Juričev Martinčev
• Mentor: Igor Zjakić (mentor)
• Committee member: Dubravko Banić (član povjerenstva)
• Committee member: Igor Zjakić (član povjerenstva)
• Committee member: Irena Bates (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2018-9-25, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Inkjet je jedna od tehnika digitalnog tiska. Prema načinu ispuštanja kapljica ona se

dijeli na kontinuirani inkjet i inkjet baziran na kapanju na zahtjev. Prema tehnologiji

izbacivanja kapljica on može biti termalni, elektrostatski ili piezo inkjet. Piezo tehnologija je danas najzastupljenija od navedenih prvenstveno zbog svoje kvalitete. Rastriranje

slike je proces kojim se smanjuje broj sivih tonova ili boja na slici, a pritom se zadržava

vizualna iluzija kontinuiranosti tonova. Rastriranjem se višetonska slika najčešće prevodi u jednotonsku, dakle veći broj tonova se nastoji prikazati sa samo dva tona. Rasteri se

dijele na amplitudno modulirane i frekventivno modulirane. Kod amplitudno moduliranog rastera doživljaj tonaliteta se postiže tako da se pojedinačne točkice uvijek nalaze

na istoj udaljenosti jedna od druge, dok se njihov promjer mijenja. U slučaju frekventno

moduliranog rastera pojedinačni rasterski elementi imaju isti promjer ali su različito

udaljeni jedni od drugih. Pri digitalnom tisku za izradu rasterske slike koriste se softwarei koji se zovu Raster Image Processori uz pomoć kojih se digitalna slika pretvara u

bitmapu koja se obrađena šalje u uređaj na ispis.

Abstract (english)

Inkjet is one of the digital printing techniques. By the the mode od releasing drops,

it is divided into continuous inkjet and inkjet based on drop on demand. According

to dropout technology it can be thermal, electrostatic or piezo inkjet. Nowdays Piezo

technology is the most prominent of the above mentioned mostly because of its quality. Image screening is a process that reduces the number of gray tones or colors in the

image while retaining the visual illusion of tone continuity. By screening the image, the

multichromatic image is translated into monochrome, hence a greater number of tones

are attempted to be displayed with only two tones. Raster dots are divided into Amplitude modulated and Frequency modulated. With amplitude-modulated raster, the tonal

experience is made in a way that individual dots are always located at the same distance

from each other while their diameter changes. In the case of a frequency modulated

raster, the individual raster elements have the same diameter but are differently spaced

from each other. In digital printing Raster image processing software is used for making

bitmap thas is sent to the printing machine after after it was processed.

• Keywords: digitalni tisak; inkjet; Raster Image Processor; slika
• Keywords (english): digital print; inkjet; Raster Image Processor; image
• Language: croatian
• URN:NBN: urn:nbn:hr:216:684638
• Study programme: Title: Graphic technology; specializations in: Graphic technology, Design of graphic products; Course: Graphic technology; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije (sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-04-18 22:28:36