Grayscale bivuga igitekerezo cyingenzi gikoreshwa muguhagararira impinduka zumucyo wamabara mugutunganya amashusho. Urwego rwa Grayscale rusanzwe kuva 0 kugeza 255, aho 0 rugereranya umukara, 255 igereranya umweru, nimibare iri hagati yerekana impamyabumenyi zitandukanye. Agaciro keza karafa, urumuri rwiza; Agaciro ka Grayscale, Umwijima Ishusho.
Indangagaciro za grayscale zigaragazwa nunkunga yoroshye, zemerera mudasobwa gufatana vuba guca imanza no guhinduka mugihe cyo gutunganya amashusho. Ubu buvuzi bworoshya cyane bworoshya cyane gutunganya amashusho kandi bitanga amahirwe yo guhagararira amashusho.
Icyatsi gikoreshwa cyane cyane mugutunganya amashusho yumukara n'umweru, ariko kandi ugira uruhare runini mumashusho yamabara. Igishushanyo mbonera cyamabara kibarwa nikigereranyo kiremereye cyibice bitatu byamabara ya RGB (umutuku, icyatsi, nubururu). Ikigereranyo kiremereye mubisanzwe gikoresha uburemere butatu kuri 0.29, 0.587, na 0.114, bihuye n'amabara atatu yumutuku, icyatsi, nubururu. Ubu buryo buremereye buturuka muburyo butandukanye bwijisho ryumuntu ku mabara atandukanye, bigatuma ishusho ya graycale ihinduka cyane hamwe nibiranga ijisho ryumuntu.
Ibyiza byo kwerekana
Iyobowe ryerekanwe ni igikoresho cyerekana gikoreshwa cyane mukwamamaza, imyidagaduro, ubwikorezi nibindi bice. Ingaruka zayo zifatika zifitanye isano itaziguye nuburambe no guhererekanya amakuru. Mu gitabo cyayobowe, igitekerezo cya grayscale cyane cyane kuko kigira ingaruka muburyo bwibara nibishusho byerekana ishusho.
Ibyiza byo kwerekana iyobowe bivuga imikorere ya pigiseli imwe yayoboye kurwego rutandukanye. Indangagaciro zitandukanye zinzabibu zijyanye ninzego zitandukanye. Urwego rwo hejuru rwinshi, ibara ryibara nibisobanuro byerekana ko kwerekana bishobora kwerekana.
Kurugero, sisitemu ya gray-8-bit irashobora gutanga urwego 256 ruheburire, mugihe sisitemu ya metero 12-biti irashobora gutanga urwego rwa grayscale 4096. Kubwibyo, urwego rwinshi rwamahembe rushobora gutuma iyobowe ryayobowe rigaragara kandi amashusho karemano.
Muri LED yerekana, ishyirwa mubikorwa ryinshi ryamashanyarazi ubusanzwe bishingiye kuri PWM (Moduleth Flese Modulation) Ikoranabuhanga. PWM igenzura umucyo wubuyobozi uhindura ikigereranyo cya OFF igihe cyo kugera kurwego rutandukanye rwa GrayScale. Ubu buryo ntibushobora kugenzura neza umucyo, ahubwo nanone kugabanya neza ibiyobyabwenge. Binyuze muri tekinoroji ya PWM, LESS irashobora kugera ku mpinduka zikize mugihe ukomeje kumurika cyane, bityo utanga ingaruka nziza zo kwerekana.
Ibara
Icyiciro cya Grayscale bivuga umubare wurwego rwa Grayscale, ni ukuvuga umubare wimiterere itandukanye yerekana kwerekana bishobora kwerekana. Isumbabyo hejuru yicyiciro cyinshi, umukire Ibara ryimikorere yerekana kandi byiza birambuye. Urwego rwamanota yicyiciro kigira ingaruka ku bwuzuzanya ibara kandi rinyuranye ryerekana, bityo bigira ingaruka kuri rusange.
8-bit graycale
Sisitemu ya 8-bit irashobora gutanga urwego 256 rwa grayscale (2 ku mbaraga ya 8), niyo nzego zisanzwe zikurura kuri LES. Nubwo urwego 256 ruheburire rushobora guhuza ibikenewe muri rusange, mubisabwa byingenzi, 8-bit graycayscale ntishobora gutanga umusaruro uhagije, cyane cyane iyo yerekana amashusho akomeye (HDR).
10-bit graycale
Sisitemu 10-bit irashobora gutanga urwego 1024 rwa grayscale (2 kugeza ku mbaraga ya 10), ziryohe kandi ziryoshye kandi zifite ibara ryinshi zirenze 8-bit. Sisitemu 10-bit ikanakoreshwa kenshi mugutanga ibisobanuro byinshi, nko gutekereza kwabukira, gufotora yabigize umwuga, no kubyara amashusho.
12-bit graycale
Sisitemu ya 12-bit irashobora gutanga urwego rwa Grays 4096 (2 kugeza ku mbaraga ya 12), ni urugero rwinshi rwiza kandi rushobora gutanga imikorere yerekana amashusho cyane. Sisitemu ya 12-bit yakoreshejwe kenshi mugusaba porogaramu nyinshi, nka aerospace, gukurikirana ibisirikare nibindi bice.
Muri edd yakozwe na ecran ya edne, imikorere yicyatsi ntabwo iterwa no gushyigikira ibyuma gusa, ariko kandi bisaba ubufatanye bwa software algorithms. Binyuze mu gutunganya amashusho yateye imbere, imikorere ya grayscale irashobora kurushaho kuba nziza, kugirango express ya ecran idashobora gusubira neza kurwego nyarwo kurubuga rwinshi.
Umwanzuro
Icyatsi cyingenzi mubijyanye no gutunganya amashusho no kwerekana ikoranabuhanga, kandi porogaramu yacyo yayoboye iyobowe ni ngombwa cyane. Binyuze mu kugenzura neza no kwerekana amashusho yimyanda, yayoboye amashusho arashobora gutanga amabara akize hamwe namashusho meza, bityo bikamura umukoresha. Mubyiciro bifatika, guhitamo urwego rutandukanye rugomba kugenwa hakurikijwe ibisabwa byihariye bikoreshwa no kubisabwa kugirango tugere ku ngaruka nziza.
Ikirangantego cyo gushyira mu bikorwa ecran ya LED zishingiye cyane cyane ku ikoranabuhanga rya PWM, rigenzura umucyo w'iribuno rihindura ikigereranyo cy'ibintu byo guhinduranya ibyuma bitandukanye. Urwego rwumucyo rugira ingaruka muburyo bwibara nibishusho byerekana amashusho yerekana. Kuva kuri 8-bit graycale kugeza kuri 12-bit graycale, ikoreshwa ryinzego zinyuranye zihuye nibyakozwe mubyiciro bitandukanye.
Muri rusange, iterambere rihoraho niterambere ryikoranabuhanga rya Graycale ritanga umusarurogusaba ibyiringiro kuri ecran yerekana amashusho. Mugihe kizaza, hamwe nuburyo bwo gutunganya amashusho yo gutunganya amashusho hamwe nuburyo bwo guhora bwimikorere yimikorere, imikorere ya ecran yayoboye bizaba byiza, bizana abakoresha uburambe butangaje. Kubwibyo, mugihe uhisemo no gukoresha ecran yerekana amashusho, imyumvire yimbitse kandi ikoreshwa ryumvikana ikoranabuhanga rya GrayCale rizaba urufunguzo rwo kuzamura ingaruka zo kwerekana.
Igihe cyohereza: Sep-09-2024
