Chikonzero Nei Waifanira Kuchengeta Pamusoro peKamera Yako ADC
ADC inomiririra Analog ku Digital Converter uye inoreva kubhidhiyo kamera yekukwanisa kutora zvokwadi uye kuishandura iyo faira rej digital. Izvo zvinotora zvose zvinyorwa, kusiyana, uye tonal ruzivo rwechiitiko uye unochinjeka kudijitori yenyika kuburikidza uchishandisa bhinary code yenhare yekombiyuta.
Makamera ose emagetsi anopiwa nhamba ye ADC uye inowanikwa muzvigadzirwa zvemagetsi zvemhando imwe neimwe. Zvakakosha kunzwisisa kuti ADC ndeyei, iyo inoshanda sei, uye nei inogona kuita basa mukutora kamera yako inotenga.
Chii ADC?
Zvose DSLR uye nheyo uye kupfura makamera zvine sensens ine mapikisi nemafotodiodhi . Izvi zvinoshandura simba remahotoni mumutengo wemagetsi. Mutengo iwoyo unotendeuka kuhututi, iyo inokurudzirwa kusvika kune imwe yero iyo inogona kushandiswa mberi neyo digital kamera yeAnalog kusvika Digital Converter (inonzi ADC, AD Converter, uye A / D Converter kwenguva pfupi).
IA ADC is chip mukati memakamera ako digital uye basa rayo nderokuisa mavhenekeri emapikiseli mumatambo ekupenya uye kupa imwe neimwe yezinga kune nhamba yebhanari, ine zeros uye iyo. Vazhinji vashandi makamera emakashandisi anoshandisa zvinenge 8-bit ADC, iyo inobvumira kusvika pamasero 256 ekupenya kwepikisi imwe chete.
Kusarudza ADC yeDa Camera Camera
Izvo zvishoma zvishoma mudiki we ADC inotsanangurwa nehutano hwakasimba (kunyatso) kwe sensor . Ruzhinji rukuru rwakakura ruchadikanwa kakadarika 10-bit ADC kuti ibudise nhamba huru yematonho uye kuti dzidzivise kurasikirwa kweumwe ruzivo.
Zvisinei, vatori vekamera vanowanzotarisa-kutsanangura ADC (zvakadai ne12 bits pane 10 bits) kuitira kuti zvibvumire chero zvikanganiso pane iyo. Zvimwe zve "bits" zvinogonawo kubatsira kudzivirira kubheta (posterization) paunoshandisa tonal curves kune data. Zvisinei, havazogadziri chero humwe huwandu hwemashoko, pasina ruzha.
Izvi Zvinorevei Paunotenga Kamera Idzva?
Tati tatoti vazhinji vese vese makamera makombiyuta ane 8-bit ADC uye izvi zvakakwana kune vanyori vese vari kuvhara mifananidzo yemhuri kana kutora kunaka kwezuva. Iyo ADC inobata basa rakakura nepamusoro-kumagumisiro emakamera eDLRLR kune unyanzvi nehuwandu hwevatsigiri.
Vakawanda veSDLRLR vanogona kutora pamwe neAdC yakakwirira se 10-bit, 12-bit, uye 14-bit. Izvi zvakakwirira ADC zvakagadzirirwa kuwedzerwa maitiro anokwanisa ekuti kamera inogona kutora, kuumba mumvuri wakadzika uye madidients akajeka.
Misiyano iri pakati pe 12-bit uye 14-bit image ichave yakanyanyisa uye inogona kunge isingazivikanwi mune dzakawanda mifananidzo. Uyezve, izvi zvose zvinotenderera pane iyo yakakura yakawanda ye sensor yako. Kana hutambo hwakasimba husingawedzere neAAD, saka haugone kubudirira mukuvandudza huni hwemufananidzo.
Sezvo teknolojia yekombiyuta inoramba ichinatsiridza, ndizvo zvichaita iyo inobudirira mufananidzo weional mararamiro uye kukwanisa kwekhamera kuitora.
Inofanirawo kuonekwa kuti mumakamuri akawanda eDLRLR, kukwanisa kutora mifananidzo kushandisa chero ADC iri pamusoro pe-8-bits inoda kupfurwa muWRW format. JPG chete inobvumira 8-bit channel ye data.