Doorashada scanner ah film: war faa'iido leh

Si loogu badalo diidmo ama bogagga in format digital la isticmaalayo qalab gaar ah - scanner ah film. Waxaa ka duwan scanner ah caadiga ah in ay waxaa loogu talagalay in ay la tacaalaan images hufan yar, kaas oo ay leeyihiin xal sare. Inkasta oo qaar badan scanners flatbed waxay leeyihiin modules gaar ah, kuu ogolaanaya in aad baarista raaceyso, laakiin sheyga waa la helay iyadoo ay sabab u tayo liita.

CCD (CCD) xubno iskaanka oo keliya ayaa ku siin kara ee loo baahan yahay si qoto dheer duurka for images leh xallinta sare. Sidaa darteed, dhammaan scanners waxaa dhisay filimka la isticmaalkooda. lagu daydo qaar waxay leeyihiin line a CCD hal. Xaaladdan oo kale, digitization loo baahan yahay saddex baas iyada oo xun. Waxaa kordhiyay sawirka, laakiin waxba uma dhimeyso natiijada. Asal ahaan, scanner filimka ayaa isugu soo CCD ah, iyo digitizing image ku dhacdaa pass hal. lagu daydo qaar ka mid ah ay isticmaalaan pass isticmaali karo si loo yareeyo khaladaadka ku jira image finalka.

Halbeegga muhiim ah oo waa inaad fiiro gaar ah marka aad dooranayso scanner ah waa xalka indhaha. width ee filimka caadi ah waa 35 mm, iyo sanamkii la laftiisa uu leeyahay cabbirada xitaa kuwa yaryar. Sidaa darteed, tirada ka mid ah xalinta indhaha waa inuu ugu yaraan 2400 dpi (dhibco per inch). Waxaa jira scanners in ay bixiyaan 4800 iyo 5400 dpi. Inkasta oo heerka haatan of technology si loo gaadho qiimaha ka sii sareeya, ma shaqayn karto - xataa size hadhuudh wanaagsan filimka uu noqon doono pixels badan oo dheeraad ah.

fiiro gaar ah in la bixiyo, in ay kala duwan ee firfircoon ama cufnaanta indhaha. The sare qiimaha, si fiican scanner ah gudbiyaan laga yaabaa in diidmo halftone iyo guurka midabka siman. Waayo, qiimaha tayada of cufnaanta indhaha of processing filimka waa in kala duwan ee ilaa 3,2 D 3,6 D. La helo hannaankii la cufnaanta indhaha ka weyn ma macno samaynayaa, sida tirada ugu badan ee filimada sida waxa uu leeyahay qiimo.

Tayada digitization wuxuu sidoo kale saamayn matalaad yara dunida, taas oo calaamad u dhalmo midabka. scanner film Modern yeelan karaan matalaad midabka 42 ama 48 yara, laakiin processing format ah waxaa loo isticmaalaa oo kaliya gudahood scanner ah, oo u adeegta si loo yareeyo "buuq" Isbadal. image keentay ayaa qalabka oo ah 24-bit Heerka habaynteeda midabka computer.

Scanner waayo bogagga kiisaska intooda badan ku xiran computer a via USB-interface. More daydo qaali ah ayaa loogu xidhi karaa via SCSI-2 iyo IEEE 1394 (FireWire). Xaaladdan oo kale, inta badan waxaa ka mid ahaa ku filan yahay kaar leh xakamaysada xogta.

film Scanner had iyo jeer waxay leedahay hardware ah waayo image gol leeyahay. Tani ICE Digital, kaas oo u ogolaanaya in ay ciidda image iyo xagashada ka soo saarto, oo aan saamayn ku image ugu weyn, iyo Digital GEM, kaas oo u ogolaanaya in la baabi'iyo graininess iyo Digital ROC, jidaynayey si ay u sawiro midab yaraaday oo kale soo celin midabka. Marar badan, hab kuwaas oo lagu daro in hal xirmo digital ICE4 Advanced. Isticmaalka tiknolojiyada, kuwaas oo si weyn u cimrigay dheeraysaa sawirka, laakiin natiijadu waa u fiican. Waayo, transformations la mid ah ee Photoshop u baahan doonaa waqti kale oo badan, iyo natiijada waa wax la damaanad qaaday.