Imyenda yerekana igitekerezo cyingenzi gikoreshwa muguhindura ihinduka ryamabara mugutunganya amashusho. Urwego rwimyenda isanzwe kuva kuri 0 kugeza kuri 255, aho 0 igereranya umukara, 255 igereranya umweru, naho imibare iri hagati yerekana urwego rutandukanye rwimvi. Hejuru ya graycale agaciro, ishusho irasa; munsi ya graycale agaciro, ishusho yijimye.
Indangagaciro za graycale zigaragazwa nkibintu byoroshye, bituma mudasobwa zifata ibyemezo byihuse kandi bigahinduka mugihe cyo gutunganya amashusho. Iyi mibare igereranya yoroshya cyane uburyo bwo gutunganya amashusho kandi itanga ibishoboka kugirango amashusho atandukanye.
Imyenda ikoreshwa cyane mugutunganya amashusho yumukara numweru, ariko kandi igira uruhare runini mumashusho yamabara. Agaciro keza k'ibara ry'ishusho kibarwa nuburemere buringaniye bwibice bitatu byamabara ya RGB (umutuku, icyatsi, nubururu). Ikigereranyo kiremereye gikunze gukoresha uburemere butatu bwa 0.299, 0.587, na 0.114, bihuye namabara atatu yumutuku, icyatsi, nubururu. Ubu buryo bwo kuremera buturuka kumyumvire itandukanye yijisho ryumuntu kumabara atandukanye, bigatuma ishusho yimyenda ihindagurika cyane ijyanye nibiranga ijisho ryumuntu.
Icyatsi cyerekana LED
LED yerekana ni igikoresho cyerekana cyane mukwamamaza, imyidagaduro, ubwikorezi nizindi nzego. Ingaruka yerekana yerekanwe neza nuburambe bwabakoresha ningaruka zo kohereza amakuru. Mu kwerekana LED, igitekerezo cya graycale ni ingenzi cyane kuko kigira ingaruka itaziguye kumikorere yamabara nubuziranenge bwibishusho.
Icyatsi cyerekana LED yerekana imikorere ya pigiseli imwe ya LED kurwego rutandukanye. Indangagaciro zitandukanye zijimye zihuye nurwego rutandukanye. Urwego rwohejuru rwa graycale, niko amabara akungahaye hamwe nibisobanuro bishobora kwerekana.
Kurugero, sisitemu ya biti 8 ya biti irashobora gutanga urwego rwimyenda 256, mugihe sisitemu ya biti 12 irashobora gutanga urwego 4096. Kubwibyo, urwego rwinshi rwimyenda irashobora gutuma LED yerekana yerekana neza kandi amashusho karemano.
Muri LED yerekana, ishyirwa mubikorwa rya graycale mubisanzwe rishingiye kuri tekinoroji ya PWM (ubugari bwa pulse). PWM igenzura urumuri rwa LED muguhindura igipimo cyigihe no hanze kugirango ugere kurwego rwimyenda itandukanye. Ubu buryo ntibushobora gusa kugenzura neza urumuri, ariko kandi bugabanya neza gukoresha ingufu. Binyuze mu ikoranabuhanga rya PWM, LED yerekana irashobora kugera ku mpinduka zikungahaye zijimye mugihe zigumana umucyo mwinshi, bityo zigatanga ishusho nziza yerekana ishusho.
Icyatsi
Icyiciro cyerekana ibara ryerekana umubare wurwego rwimyenda, ni ukuvuga umubare wurumuri rutandukanye urwego rushobora kwerekana. Urwego rwohejuru rwerekana ibara ryinshi, niko urushaho gukomera kwamabara yerekana no kwerekana neza ibisobanuro birambuye. Urwego rwicyatsi kibisi rugira ingaruka zuzuye zuzuye zuzuye no gutandukanya ibyerekanwe, bityo bikagira ingaruka kumurongo rusange.
8-bit
Sisitemu ya biti 8 ya biti irashobora gutanga urwego 256 rwimyenda (2 kugeza 8) Nubwo urwego rwimyenda 256 rushobora guhura nibisabwa muri rusange, mubisabwa bimwe na bimwe byo mu rwego rwo hejuru, ibara rya biti 8 rishobora kutoroha bihagije, cyane cyane iyo ryerekana amashusho menshi (HDR).
Ibara rya biti 10
Sisitemu ya biti 10 ya sisitemu irashobora gutanga urwego 1024 rwimyenda (2 kugeza 10) Sisitemu ya biti ya biti 10 ikoreshwa kenshi murwego rwohejuru rwerekana porogaramu, nko gufata amashusho yubuvuzi, gufotora umwuga, no gukora amashusho.
12-biti
Sisitemu ya 12-biti ya graycale irashobora gutanga 4096 urwego rwimyenda (2 kugeza 12) Sisitemu ya bit-12 ya sisitemu ikoreshwa kenshi mubintu bimwe na bimwe bisaba kwerekana cyane, nko mu kirere, kugenzura igisirikare no mu zindi nzego.
Muri LED yerekana ecran, imikorere ya graycale ntabwo iterwa gusa nubufasha bwibikoresho, ahubwo bisaba ubufatanye bwa software algorithms. Binyuze mumashusho yambere yo gutunganya algorithms, imikorere yimyenda irashobora kurushaho kunozwa, kugirango ecran yerekana irashobora kugarura neza ibyabaye kurwego rwo hejuru.
Umwanzuro
Graycale nigitekerezo cyingenzi mugutunganya amashusho no kwerekana tekinoroji, kandi ikoreshwa ryayo muri ecran ya LED irakomeye cyane. Binyuze mu kugenzura neza no kwerekana imiterere ya graycale, ecran ya LED irashobora gutanga amabara meza n'amashusho meza, bityo bikazamura uburambe bwabakoresha. Mubikorwa bifatika, guhitamo urwego rwimyenda itandukanye bigomba kugenwa ukurikije ibisabwa byifashishwa hamwe nibisabwa kugirango bigerweho neza.
Gushyira mu bikorwa ibara ryerekana LED yerekana cyane cyane tekinoroji ya PWM, igenzura urumuri rwa LED muguhindura igipimo cyigihe cyo guhinduranya LED kugirango igere kurwego rutandukanye. Urwego rwa graycale rugira ingaruka itaziguye kumikorere yamabara nubuziranenge bwibishusho byerekana. Kuva kuri 8-biti ya graycale kugeza kuri 12-biti ya graycale, ikoreshwa ryurwego rutandukanye rwumuhondo rwujuje ibyerekanwa bikenewe murwego rutandukanye.
Muri rusange, iterambere rihoraho niterambere ryikoranabuhanga rya graycale ritanga ubugariPorogaramu ibyiringiro bya LED yerekana. Mu bihe biri imbere, hamwe no kurushaho kunoza tekinoroji yo gutunganya amashusho no gukomeza kunoza imikorere yibikoresho, imikorere ya graycale ya ecran ya LED yerekana bizaba byiza cyane, bizana abakoresha uburambe butangaje bwo kubona. Kubwibyo, mugihe uhitamo no gukoresha LED yerekana ecran, gusobanukirwa byimbitse no gushyira mu bikorwa tekinoroji ya graycale bizaba urufunguzo rwo kunoza ingaruka zerekana.
Igihe cyo kohereza: Nzeri-09-2024
