Ubudlelwane phakathi kobukhulu bomphezulu ojoliswe kuwo kunye nesisombululo se-pixel esifikelelekayo sinokuhlalutywa kwiimbono ezininzi. Apha ngezantsi, siza kuphonononga kwimiba emine ephambili: ukonyuka kwendawo yepikseli yeyunithi, ukongezwa kwesakhono sokubamba ukukhanya, ukuphuculwa kobunzulu besiphumo sentsimi, kunye nenkqubela phambili yetekhnoloji.
1. Ukunyuka kwi-Unit Pixel Area
Xa ubungakanani bomgangatho ekujoliswe kuwo wekhamera busanda, indawo ebuthathaka kukukhanya kwepixel nganye nayo iyanda ngokomlinganiselo. Olu tshintsho luchaphazela kakhulu umgangatho womfanekiso. Ngokukodwa, indawo enkulu ebuthathaka kukukhanya yenza ukuba ipikseli nganye ibambe ukukhanya okungaphezulu kunye nolwazi olutyebileyo lweenkcukacha. Umzekelo, xa uthatha iifoto zembonakalo yomhlaba, indawo enkulu yepikseli yeyunithi inokunika umaleko wamafu esibhakabhakeni umahluko omkhulu kwaye wenze ukumila kwezityalo emhlabeni kubonakale kucace ngakumbi. Ngaphezu koko, phantsi kwesisombululo esifanayo, ukuba iikhamera ezimbini zisebenzisa i-sensor ezinkulu kunye ezincinci ngokulandelanayo, iipikseli zekhamera kunye ne-sensor enkulu ziya kuba nommandla omkhulu wokukhanya, okuvumela ukuba ibambe idatha yokukhanya ngakumbi. Ezi datha zongezelelekileyo ziphucula ukucaca ngokubanzi kunye nokuchazwa kweenkcukacha zomfanekiso, ngakumbi kuluhlu oluphezulu lwe-HDR, apho olu ncedo lubonakala ngakumbi.
2. Ukwandiswa kweSakhono sokuThatha ukukhanya
Indawo ekujoliswe kuyo enkulu ayinyusi nje kuphela indawo ebuthathaka kukukhanya kweepikseli zomntu kodwa ikwanyusa amandla okubamba ukukhanya kwenkqubo yekhamera. Oku kubaluleke ngakumbi kwiimeko zokukhanya okuphantsi. Umzekelo, kwiifoto zasebusuku okanye kwiindawo zangaphakathi ezinokukhanya okulinganiselweyo, iikhamera ezinezixhobo zoluvo ezinkulu zihlala zigqwesa ezo zinezinzwa ezincinci. Oku kungenxa yokuba ipixel nganye inokufumana iifotoni ezininzi, ngaloo ndlela inciphisa uphazamiseko lwengxolo olubangelwa kukukhanya okunganelanga. Ingxolo idla ngokuvela njengee-artifacts zegranular kumfanekiso, ezithomalalisa umgangatho womfanekiso kwaye zichaphazele amava okubonwayo. Ngokwandisa ubungakanani obujoliswe kumphezulu, ikhamera inokufezekisa ukuvezwa okwaneleyo ngelixa igcina ixabiso eliphantsi le-ISO, ngokufanelekileyo ukucinezela ingxolo kunye nokunciphisa ukufiphala. Eli nqaku lenza iikhamera ezinenzwa enkulu zibe lukhetho olukhethwayo lwabafoti abachwephesha kunye nabathanda, ngakumbi kwiimeko ezifuna ukukhanya okuchanekileyo kunye noguqulelo lwesithunzi.
3. Ukuphuculwa koBunzulu boMsebenzi weNdawo
Ukongeza ekwandiseni umgangatho womfanekiso kunye namandla okubamba ukukhanya, indawo ekujoliswe kuyo enkulu inegalelo kubunzulu obungekho nzulu besiphumo sentsimi. Olu phawu lunika amathuba amakhulu okudala kwifoto. Ubunzulu obungenzulwanga bommandla buvelisa ukufiphala okungasemva kwendalo, kuphucula ukwahlula phakathi kwesihloko kunye nemvelaphi, oko kwenza umfanekiso ube nomtsalane ngakumbi ngobugcisa. Umzekelo, kumfanekiso wokufota, abafoti banokudala iziphumo ezingacacanga ezingasemva ngokuhlengahlengisa ubude bendawo kunye nobukhulu bokuvula, besebenzisa izibonelelo zezivamvo ezinkulu. Lo mphumo awubalaselisi nje kuphela umbandela oyintloko kodwa udala umoya ofana namaphupha. Ngaphezu koko, ekufotweni okukhulu, ubunzulu bebala buvumela abafoti ukuba banikel’ ingqalelo kwiinkcukacha ezithile, ezinjengokumila kwamaphiko esinambuzane okanye amathontsi ombethe kumagqabi, ngoxa bethambisa imvelaphi ukuze baphephe iziphazamiso.
4. Inkqubela phambili yezobuGcisa
Ngokuqhubeleka okuqhubekayo kobuchwephesha bale mihla, kuye kwenzeka ukuba kwenziwe izivamvo zemifanekiso ezinemigangatho emikhulu ekujoliswe kuyo. Oku kwenziwa ukuba kwenzeke ngobuchule obuphezulu bokuvelisa kunye neempumelelo kwinzululwazi yemathiriyeli. Umzekelo, ukuqhubela phambili kwitekhnoloji ye-semiconductor kwenze ukuba ulungelelwaniso phakathi koxinaniso lwe-pixel ephezulu kunye neendawo ezinkulu zephikseli zeyunithi ukuba zifezekiswe. Oku kuthetha ukuba nakwizisombululo eziphezulu kakhulu, inzwa inokugcina amandla okubamba ukukhanya kunye namanqanaba engxolo aphantsi. Ukongeza, ukusetyenziswa kwezixhobo ezitsha kuye kwaphucula ngakumbi ukusebenza kakuhle kunye nokuqina kwezinzwa. Olu phuhliso lwetekhnoloji alukhange luqhubele phambili nje uphuhliso lweekhamera zodidi oluqeqeshelweyo kodwa lunyuse umgangatho wokusebenza kwezixhobo zodidi lwabathengi. Kule mihla, nokuba ziikhamera zelensi enye enesiphelo esiphezulu okanye ii-smartphones, zonke zinokunyusa izinzwa ezinkulu ukuhambisa umsebenzi obalaseleyo kuzo zonke iimeko ezahlukeneyo zokudubula.
Isishwankathelo, ukwandiswa kobukhulu bomgangatho ojoliswe kuyo kuneempembelelo ezininzi ekuphuculeni ukusebenza kwekhamera. Ukusuka ekonyukeni kwendawo yepikseli yeyunithi ukuya ekwandiseni amandla okubamba ukukhanya, kwaye emva koko kuphuculo lobunzulu besiphumo sentsimi kunye nenkxaso yenkqubela phambili yetekhnoloji, yonke into inegalelo ekuphunyezweni kwemifanekiso ekumgangatho ophezulu. Kubasebenzisi abafuna owona mgangatho womfanekiso wokugqibela, ukukhetha isixhobo esinenzwa enkulu ngokungathandabuzekiyo sisigqibo esilumkileyo.
Ixesha lokuposa: Jun-05-2025