{"id":10276,"date":"2023-10-02T14:04:16","date_gmt":"2023-10-02T14:04:16","guid":{"rendered":"https:\/\/tech-lib.eu\/tech\/?p=10276"},"modified":"2023-10-02T14:04:16","modified_gmt":"2023-10-02T14:04:16","slug":"720p-vs-480p-pochopeni-rozdilu-v-kvalite-videa","status":"publish","type":"post","link":"https:\/\/tech-lib.eu\/tech\/720p-vs-480p-pochopeni-rozdilu-v-kvalite-videa\/","title":{"rendered":"720p vs 480p. Pochopen\u00ed rozd\u00edlu v kvalit\u011b videa"},"content":{"rendered":"
\n
Kolik je 720p?<\/div>\n
1080p (HD): 1920 \u00d7 1080. 720p (HD): 1280 \u00d7 720. 480p (SD): 854 \u00d7 480. 360p (SD): 640 \u00d7 360.<\/div>\n
\n\t\t\t\t\t Dal\u0161\u00ed informace najdete na<\/span> support.google.com<\/a>\n\t\t\t\t<\/div>\n<\/p><\/div>\n
\n
<\/div>\n

Rozli\u0161en\u00ed m\u00e1 velk\u00fd vliv na celkov\u00fd z\u00e1\u017eitek ze sledov\u00e1n\u00ed, pokud jde o kvalitu videa. Standardy pro rozli\u0161en\u00ed videa se v posledn\u00ed dob\u011b zm\u011bnily a dva \u0161iroce pou\u017e\u00edvan\u00e9 form\u00e1ty jsou 720p a 480p. Abychom v\u00e1m pomohli ur\u010dit, kter\u00e9 rozli\u0161en\u00ed by mohlo l\u00e9pe vyhovovat va\u0161im pot\u0159eb\u00e1m, sna\u017e\u00ed se tento \u010dl\u00e1nek prozkoumat rozd\u00edly mezi 720p a 480p a poskytnout odpov\u011bdi na n\u011bkter\u00e9 souvisej\u00edc\u00ed ot\u00e1zky. <\/p>\n

Jak jasn\u00e9 je rozli\u0161en\u00ed 480p? <\/div>\n

Po mnoho let slou\u017eilo rozli\u0161en\u00ed 480p, n\u011bkdy ozna\u010dovan\u00e9 jako standardn\u00ed rozli\u0161en\u00ed (SD), jako v\u00fdchoz\u00ed rozli\u0161en\u00ed pro televizn\u00ed vys\u00edl\u00e1n\u00ed a filmy na DVD. D\u0159\u00edv\u011bj\u0161\u00edm CRT televizor\u016fm mo\u017en\u00e1 sta\u010dilo, ale ve srovn\u00e1n\u00ed s vy\u0161\u0161\u00edmi rozli\u0161en\u00edmi je jeho \u010distota a hloubka detail\u016f nedostate\u010dn\u00e1. U rozli\u0161en\u00ed 480p m\u016f\u017eete o\u010dek\u00e1vat rozli\u0161en\u00ed 720×480 pixel\u016f, tedy 345 600 pixel\u016f. Na men\u0161\u00edch obrazovk\u00e1ch to je\u0161t\u011b m\u016f\u017ee nab\u00eddnout slu\u0161n\u00fd z\u00e1\u017eitek ze sledov\u00e1n\u00ed, ale na v\u011bt\u0161\u00edch panelech je nedostatek detail\u016f z\u0159ejm\u011bj\u0161\u00ed. Je rozli\u0161en\u00ed 720p na men\u0161\u00ed obrazovce atraktivn\u011bj\u0161\u00ed? <\/p>\n

<\/div>\n

V porovn\u00e1n\u00ed s rozli\u0161en\u00edm 480p p\u0159edstavuje 720p – ozna\u010dovan\u00e9 tak\u00e9 jako vysok\u00e9 rozli\u0161en\u00ed (HD) – obrovsk\u00e9 zlep\u0161en\u00ed. Poskytuje celkem 921 600 pixel\u016f, co\u017e je v\u00edce ne\u017e dvakr\u00e1t tolik ne\u017e 480p, s rozli\u0161en\u00edm 1280×720. D\u00edky v\u011bt\u0161\u00edmu po\u010dtu pixel\u016f vznik\u00e1 ost\u0159ej\u0161\u00ed obraz a plynulej\u0161\u00ed p\u0159ehr\u00e1v\u00e1n\u00ed videa, co\u017e umo\u017e\u0148uje zobrazit na obrazovce v\u00edce informac\u00ed. Zat\u00edmco rozli\u0161en\u00ed 720p m\u016f\u017ee vypadat \u00fa\u017easn\u011b na za\u0159\u00edzen\u00edch s men\u0161\u00edmi displeji, jako jsou chytr\u00e9 telefony nebo tablety, jeho v\u00fdhody skute\u010dn\u011b vyniknou p\u0159i sledov\u00e1n\u00ed na v\u011bt\u0161\u00edch obrazovk\u00e1ch, jako jsou HD televizory nebo po\u010d\u00edta\u010dov\u00e9 monitory. <\/p>\n

Je rozli\u0161en\u00ed 480p pro televizi dosta\u010duj\u00edc\u00ed? <\/div>\n

Z hlediska sledov\u00e1n\u00ed televize nemus\u00ed b\u00fdt rozli\u0161en\u00ed 480p tou nejlep\u0161\u00ed volbou. Se zaveden\u00edm vys\u00edl\u00e1n\u00ed ve vysok\u00e9m rozli\u0161en\u00ed a v\u0161udyp\u0159\u00edtomnou dostupnost\u00ed obsahu HD se zd\u00e1 b\u00fdt rozli\u0161en\u00ed 480p nedostate\u010dn\u00e9 a zastaral\u00e9. Na men\u0161\u00edch displej\u00edch nebo star\u0161\u00edch televizorech m\u016f\u017ee b\u00fdt st\u00e1le je\u0161t\u011b sledovateln\u00e9, ale na v\u011bt\u0161\u00edch obrazovk\u00e1ch m\u016f\u017ee b\u00fdt nedostatek \u010distoty a detail\u016f z\u0159eteln\u011bj\u0161\u00ed. D\u016frazn\u011b doporu\u010dujeme upgradovat televizor na vy\u0161\u0161\u00ed rozli\u0161en\u00ed, nap\u0159\u00edklad 720p nebo dokonce 1080p, pokud chcete pln\u011b vyu\u017e\u00edt jeho mo\u017enost\u00ed. Zd\u00e1 se v\u00e1m rozli\u0161en\u00ed 720p rozmazan\u00e9? <\/p>\n

<\/div>\n

Na rozd\u00edl od v\u0161eobecn\u00e9ho n\u00e1zoru se rozli\u0161en\u00ed 720p p\u0159i sledov\u00e1n\u00ed na spr\u00e1vn\u011b kalibrovan\u00e9m displeji nezd\u00e1 b\u00fdt zrnit\u00e9. Ve skute\u010dnosti m\u016f\u017ee rozli\u0161en\u00ed 720p nab\u00eddnout jasn\u00fd a ostr\u00fd z\u00e1\u017eitek ze sledov\u00e1n\u00ed d\u00edky vy\u0161\u0161\u00edmu po\u010dtu pixel\u016f a lep\u0161\u00edm detail\u016fm. Je d\u016fle\u017eit\u00e9 m\u00edt na pam\u011bti, \u017ee vn\u00edman\u00e1 kvalita se m\u016f\u017ee li\u0161it mimo jin\u00e9 v z\u00e1vislosti na velikosti obrazovky, pozorovac\u00ed vzd\u00e1lenosti a kalibru zdroje videa. Krom\u011b toho, bez ohledu na rozli\u0161en\u00ed, pokud je videoz\u00e1znam nekvalitn\u00ed nebo nespr\u00e1vn\u011b komprimovan\u00fd, m\u016f\u017ee se zd\u00e1t rozmazan\u00fd. <\/p>\n

<\/div>\n

Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee kvalita videa v rozli\u0161en\u00ed 720p je znateln\u011b lep\u0161\u00ed ne\u017e kvalita videa v rozli\u0161en\u00ed 480p. Rozli\u0161en\u00ed 720p nab\u00edz\u00ed lep\u0161\u00ed obraz a plynulej\u0161\u00ed p\u0159ehr\u00e1v\u00e1n\u00ed videa d\u00edky v\u011bt\u0161\u00edmu po\u010dtu pixel\u016f, zejm\u00e9na p\u0159i sledov\u00e1n\u00ed na v\u011bt\u0161\u00edch televizorech. U men\u0161\u00edch obrazovek nebo star\u0161\u00edch televizor\u016f m\u016f\u017ee b\u00fdt rozli\u0161en\u00ed 480p st\u00e1le p\u0159ijateln\u00e9, ale nedok\u00e1\u017ee poskytnout takov\u00e9 mno\u017estv\u00ed \u010distoty a detail\u016f jako vy\u0161\u0161\u00ed rozli\u0161en\u00ed. Pokud chcete m\u00edt skute\u010dn\u011b pohlcuj\u00edc\u00ed a vizu\u00e1ln\u011b kr\u00e1sn\u00fd z\u00e1\u017eitek ze sledov\u00e1n\u00ed, je lep\u0161\u00ed p\u0159ej\u00edt na rozli\u0161en\u00ed 720p nebo je\u0161t\u011b vy\u0161\u0161\u00ed.<\/p><\/div>\n

\n
FAQ<\/div>\n
\n
Pro\u010d je rozli\u0161en\u00ed 720p st\u00e1le pova\u017eov\u00e1no za HD?<\/div>\n

Proto\u017ee rozli\u0161en\u00ed 720p spl\u0148uje minim\u00e1ln\u00ed specifikace pro video s vysok\u00fdm rozli\u0161en\u00edm, je st\u00e1le pova\u017eov\u00e1no za HD. Progresivn\u00ed skenov\u00e1n\u00ed, reprezentovan\u00e9 p\u00edsmenem „p“ ve slov\u011b 720p, znamen\u00e1, \u017ee ka\u017ed\u00fd sn\u00edmek videa je vid\u011bt cel\u00fd, co\u017e vytv\u00e1\u0159\u00ed plynul\u00fd a detailn\u00ed obraz. Ve srovn\u00e1n\u00ed s rozli\u0161en\u00edm 720×480 pixel\u016f u standardn\u00edho rozli\u0161en\u00ed 480p m\u00e1 720p rozli\u0161en\u00ed 1280×720 pixel\u016f. Ve srovn\u00e1n\u00ed s rozli\u0161en\u00edm 480p poskytuje vy\u0161\u0161\u00ed rozli\u0161en\u00ed 720p jasn\u011bj\u0161\u00ed a ost\u0159ej\u0161\u00ed detaily a poutav\u011bj\u0161\u00ed z\u00e1\u017eitek ze sledov\u00e1n\u00ed. I kdy\u017e jsou nyn\u00ed k dispozici vy\u0161\u0161\u00ed rozli\u0161en\u00ed jako 1080p a 4K, 720p je st\u00e1le \u0161iroce pou\u017e\u00edvan\u00fdm standardem pro HD obsah, zejm\u00e9na pro za\u0159\u00edzen\u00ed s men\u0161\u00edmi obrazovkami, jako jsou chytr\u00e9 telefony a tablety. <\/p>\n<\/div>\n

\n
Je Netflix 480p nebo 720p?<\/div>\n

V z\u00e1vislosti na za\u0159\u00edzen\u00ed a internetov\u00e9m p\u0159ipojen\u00ed pou\u017e\u00edvan\u00e9m ke streamov\u00e1n\u00ed obsahu nab\u00edz\u00ed Netflix video v kvalit\u011b 480p i 720p. Ve v\u00fdchoz\u00edm nastaven\u00ed Netflix p\u0159izp\u016fsobuje kvalitu videa na z\u00e1klad\u011b mo\u017enost\u00ed p\u0159ehr\u00e1vac\u00edho za\u0159\u00edzen\u00ed a dostupn\u00e9 \u0161\u00ed\u0159ky p\u00e1sma. U\u017eivatel\u00e9 nicm\u00e9n\u011b mohou ru\u010dn\u011b zm\u011bnit nastaven\u00ed kvality videa na \u00fa\u010dtu Netflix a up\u0159ednostnit lep\u0161\u00ed kvalitu (720p) nebo ni\u017e\u0161\u00ed kvalitu (480p) streamov\u00e1n\u00ed. <\/p>\n<\/div>\n

\n
Kolik GB m\u00e1 film v rozli\u0161en\u00ed 480p?<\/div>\n

Velikost souboru filmu 480p se m\u016f\u017ee m\u011bnit v z\u00e1vislosti na \u0159ad\u011b prom\u011bnn\u00fdch, v\u010detn\u011b d\u00e9lky filmu, typu pou\u017eit\u00e9 komprese a kvality zvuku. Pr\u016fm\u011brn\u00fd film 480p s d\u00e9lkou trv\u00e1n\u00ed 2 hodiny m\u016f\u017ee m\u00edt velikost mezi 1,5 a 2,5 GB. Je d\u016fle\u017eit\u00e9 m\u00edt na pam\u011bti, \u017ee se jedn\u00e1 pouze o odhad a \u017ee skute\u010dn\u00e1 velikost souboru se m\u016f\u017ee li\u0161it.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Kolik je 720p? 1080p (HD): 1920 \u00d7 1080. 720p (HD): 1280 \u00d7 720. 480p (SD): 854 \u00d7 480. 360p (SD): 640 \u00d7 360. Dal\u0161\u00ed informace najdete na support.google.com Rozli\u0161en\u00ed m\u00e1 velk\u00fd vliv na celkov\u00fd z\u00e1\u017eitek ze sledov\u00e1n\u00ed, pokud jde o kvalitu videa. Standardy pro rozli\u0161en\u00ed videa se v posledn\u00ed dob\u011b zm\u011bnily a dva \u0161iroce pou\u017e\u00edvan\u00e9 … \u010c\u00edst d\u00e1l<\/a><\/p>\n","protected":false},"author":1245,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3949],"tags":[],"class_list":["post-10276","post","type-post","status-publish","format-standard","hentry","category-kvalita-videa"],"_links":{"self":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/10276","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/users\/1245"}],"replies":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/comments?post=10276"}],"version-history":[{"count":0,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/10276\/revisions"}],"wp:attachment":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/media?parent=10276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/categories?post=10276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/tags?post=10276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}