[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.etage.cz\/rgb-system\/#Article","mainEntityOfPage":"https:\/\/www.etage.cz\/rgb-system\/","headline":"RGB Syst\u00e9m","name":"RGB Syst\u00e9m","description":"Na\u0161e oko dok\u00e1\u017ee rozezn\u00e1vat nespo\u010det jemn\u00fdch odst\u00edn\u016f barev cel\u00e9ho viditeln\u00e9ho spektra. Vn\u00edm\u00e1me jednotliv\u00e9 body zvl\u00e1\u0161\u0165 a n\u00e1\u0161 mozek je schopen […]","datePublished":"2025-02-28","dateModified":"2023-05-01","author":{"@type":"Person","@id":"https:\/\/www.etage.cz\/author\/#Person","name":"","url":"https:\/\/www.etage.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/a4f7f6499f3b2a0764d0773f1f5d74780987cfbea7e736c0e74f6185bb257971?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/a4f7f6499f3b2a0764d0773f1f5d74780987cfbea7e736c0e74f6185bb257971?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"etage.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.etage.cz\/wp-content\/uploads\/img_a341214_w2770_t1553952955.png","url":"https:\/\/www.etage.cz\/wp-content\/uploads\/img_a341214_w2770_t1553952955.png","height":0,"width":0},"url":"https:\/\/www.etage.cz\/rgb-system\/","wordCount":374,"articleBody":"Na\u0161e oko dok\u00e1\u017ee rozezn\u00e1vat nespo\u010det jemn\u00fdch odst\u00edn\u016f barev cel\u00e9ho viditeln\u00e9ho spektra. Vn\u00edm\u00e1me jednotliv\u00e9 body zvl\u00e1\u0161\u0165 a n\u00e1\u0161 mozek je schopen poskl\u00e1dat re\u00e1ln\u00fd obraz. Jak to ale funguje u zobrazovac\u00edch za\u0159\u00edzen\u00ed, jako jsou televize, telefony, notebooky, tablety, zkr\u00e1tka monitory obecn\u011b? Nen\u00ed to tak slo\u017eit\u00e9, jak by se mohlo zd\u00e1t.\tKa\u017ed\u00fd monitor je d\u011blen na stovky a tis\u00edce mal\u00fdch bod\u016f, takzvan\u00fdch pixel\u016f. Jedn\u00e1 se o nejmen\u0161\u00ed zobraziteln\u00e9 body na takov\u00e9 obrazovce a jejich po\u010det z\u00e1le\u017e\u00ed na jej\u00ed velikosti a rozli\u0161en\u00ed. Co to ale takov\u00fd pixel ve skute\u010dnosti je? Jedn\u00e1 se o t\u0159i r\u016fznobarevn\u00e9 LED diody. Prvn\u00ed z\u00a0nich m\u00e1 \u010dervenou barvu, druh\u00e1 pak zelenou a t\u0159et\u00ed je modr\u00e1. V\u00a0angli\u010dtin\u011b Red, Green, Blue. Pokud poskl\u00e1d\u00e1me za sebe prvn\u00ed p\u00edsmena t\u011bchto barev, vznikne n\u00e1m zkratka RGB. Ta se d\u00e1le pou\u017e\u00edv\u00e1 pr\u00e1v\u011b pro digit\u00e1ln\u00ed z\u00e1pis zobraziteln\u00fdch odst\u00edn\u016f.\tJak zn\u00e1mo, b\u00edl\u00e9 sv\u011btlo se skl\u00e1d\u00e1 ze v\u0161ech ostatn\u00edch. Pokud tedy chceme vid\u011bt b\u00edlou, mus\u00ed sv\u00edtit v\u0161echny t\u0159i diody \u00fapln\u011b naplno. Pokud jsou naopak zhasnut\u00e9, jev\u00ed se n\u00e1m pixel jako \u010dern\u00fd. Barvy jako takov\u00e9 lze libovoln\u011b m\u00edchat. Sm\u00edch\u00e1n\u00edm zelen\u00e9 a modr\u00e9 vznikne tzv. Magenta, my bychom ji nazvali mo\u017en\u00e1 jako r\u016f\u017eovou. Pokud sm\u00edch\u00e1me modrou a \u010dervenou, vznikne Cyan neboli tyrkysov\u00e1. Posledn\u00ed kombinace je pak telen\u00e1 a \u010derven\u00e1, p\u0159i \u010dem\u017e n\u00e1m vznikne kupodivu \u017elut\u00e1.\t\tKa\u017ed\u00e1 z\u00a0diod m\u016f\u017ee sv\u00edtit s\u00a0r\u016fznou intenzitou od 0 do 255. Jejich kombinacemi z\u00edsk\u00e1v\u00e1me pak jednotliv\u00e9 odst\u00edny. Pro\u010d zrovna 256 mo\u017enost\u00ed? Jedn\u00e1 se toti\u017e o nejvy\u0161\u0161\u00ed \u010d\u00edslo, kter\u00e9 je mo\u017en\u00e9 zapsat v\u00a0bin\u00e1rn\u00ed \u2013 dvojkov\u00e9 \u2013 soustav\u011b, jako osm bin\u00e1rn\u00edch \u010d\u00edslic (jednotek a nul neboli bit\u016f), kter\u00e9 tvo\u0159\u00ed pr\u00e1v\u011b jeden bajt. Jin\u00fdmi slovy pro rozsv\u00edcen\u00ed jednoho pixelu jsou t\u0159eba t\u0159i bajty informac\u00ed. Proto se velikost fotografi\u00ed pohybuje v\u00a0kilobajtech a\u017e v\u00a0megabitech.\tNejedn\u00e1 se tedy o nic slo\u017eit\u00e9ho, a i p\u0159esto to vypad\u00e1 velmi dokonale.                                                                                                                                                                                                                                                                                                                                                                                        3.7\/5 - (8 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"RGB Syst\u00e9m","item":"https:\/\/www.etage.cz\/rgb-system\/#breadcrumbitem"}]}]