{"id":2984,"date":"2021-10-28T10:27:22","date_gmt":"2021-10-28T08:27:22","guid":{"rendered":"https:\/\/justprint.cz\/blog\/?p=2984"},"modified":"2021-10-28T15:59:08","modified_gmt":"2021-10-28T13:59:08","slug":"dpi-v-tisku-co-se-vyplati-znat","status":"publish","type":"post","link":"https:\/\/justprint.cz\/blog\/dpi-v-tisku-co-se-vyplati-znat\/","title":{"rendered":"DPI v tisku &#8211; co se vyplat\u00ed zn\u00e1t?"},"content":{"rendered":"\n<p>M\u011bli jste p\u0159i p\u0159\u00edprav\u011b soubor\u016f k tisku probl\u00e9m s nastaven\u00edm optim\u00e1ln\u00ed hodnoty DPI? Va\u0161e v\u00fdtisky byly p\u0159\u00edli\u0161 t\u011b\u017ek\u00e9 nebo byla kvalita tisku p\u0159\u00edli\u0161 n\u00edzk\u00e1? Pokud ano, pak je tento \u010dl\u00e1nek pr\u00e1v\u011b pro v\u00e1s.<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2>Co jsou DPI, PPI a LPI<\/h2>\n\n\n\n<p>DPI je zkratka z anglick\u00e9ho term\u00ednu dots per inch, co\u017e znamen\u00e1 body na palec. Pokud se pono\u0159\u00edme do detail\u016f, zjist\u00edme, \u017ee DPI ve skute\u010dnosti ur\u010duje rozli\u0161en\u00ed tiska\u0159sk\u00fdch za\u0159\u00edzen\u00ed (plotry, tisk\u00e1rny, osvitov\u00e9 jednotky), a PPi (pixel per inch) vyjad\u0159uje rozli\u0161en\u00ed obrazu.&nbsp;<\/p>\n\n\n\n<p>Definice rozli\u0161en\u00ed obrazu DPI se v\u0161ak stala natolik b\u011b\u017enou, \u017ee doch\u00e1z\u00ed k z\u00e1m\u011bn\u011b. V tomto \u010dl\u00e1nku budeme pou\u017e\u00edvat n\u00e1zev DPI podle b\u011b\u017en\u00e9ho v\u00fdznamu, jako definici rozli\u0161en\u00ed, tedy kvality obrazu a dal\u0161\u00edch rastrov\u00fdch sn\u00edmk\u016f.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img width=\"1024\" height=\"234\" src=\"https:\/\/justprint.cz\/blog\/wp-content\/uploads\/ppi-dpi-1024x234.jpg\" alt=\"Jeden obr\u00e1zek v r\u016fzn\u00fdch dpi\" class=\"wp-image-2985\" srcset=\"https:\/\/justprint.cz\/blog\/wp-content\/uploads\/ppi-dpi-1024x234.jpg 1024w, https:\/\/justprint.cz\/blog\/wp-content\/uploads\/ppi-dpi-300x69.jpg 300w, https:\/\/justprint.cz\/blog\/wp-content\/uploads\/ppi-dpi-768x176.jpg 768w, https:\/\/justprint.cz\/blog\/wp-content\/uploads\/ppi-dpi-1536x351.jpg 1536w, https:\/\/justprint.cz\/blog\/wp-content\/uploads\/ppi-dpi-1170x268.jpg 1170w, https:\/\/justprint.cz\/blog\/wp-content\/uploads\/ppi-dpi-585x134.jpg 585w, https:\/\/justprint.cz\/blog\/wp-content\/uploads\/ppi-dpi.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption>merchandise-essentials.com<\/figcaption><\/figure>\n\n\n\n<p>Za zm\u00ednku stoj\u00ed je\u0161t\u011b hodnota LPI (lines per innch), kter\u00e1 ur\u010duje m\u00edru lineatury rastru. Obrazn\u011b \u0159e\u010deno, LPI vyjad\u0159uje, kolik kapek nebo lin\u00ed um\u00edst\u00edme paraleln\u011b k sob\u011b na dan\u00e9m palci. \u010c\u00edm vy\u0161\u0161\u00ed je lineatura, t\u00edm v\u00edce bod\u016f v dan\u00e9 oblasti-a to vede k vy\u0161\u0161\u00ed kvalit\u011b a detail\u016fm tisku. Obecn\u011b lze p\u0159edpokl\u00e1dat, \u017ee optim\u00e1ln\u00ed lineatura by m\u011bla m\u00edt mezi 150 a 175 LPI.<\/p>\n\n\n\n<p>Ale bu\u010fte opatrn\u00ed, proto\u017ee p\u0159\u00edli\u0161 vysok\u00e1 hodnota LPI, kter\u00e1 nevyhovuje tiska\u0159sk\u00fdm za\u0159\u00edzen\u00edm m\u016f\u017ee zp\u016fsobit chybov\u00fd tisk (nej\u010dast\u011bji se tmav\u00e9 t\u00f3ny rastru spojuj\u00ed do skvrn a sv\u011btl\u00e9 nejsou vyti\u0161t\u011bny).<\/p>\n\n\n\n<h2><strong>Jak vybrat vhodn\u00e9 DPI?<\/strong><\/h2>\n\n\n\n<p>1. DPI p\u0159izp\u016fsobte LPI. Hodnota DPI je \u00fazce spojena s lineaturou rastru a jejich hodnota mus\u00ed b\u00fdt nastavena spole\u010dn\u011b. P\u0159edpokl\u00e1d\u00e1 se, \u017ee hodnoty jsou nastaveny vyn\u00e1soben\u00edm LPI dv\u011bma.&nbsp;<\/p>\n\n\n\n<p>To znamen\u00e1, \u017ee nap\u0159\u00edklad pro lineaturu 150 LPI nastav\u00edme hodnotu DPI na 300.<\/p>\n\n\n\n<p>2. DPI z\u00e1vis\u00ed na tom, z jak\u00e9 vzd\u00e1lenosti budou v\u00fdtisky prohl\u00ed\u017eeny.&nbsp;<\/p>\n\n\n\n<ul><li>U velkoform\u00e1tov\u00fdch tiskovin se obvykle doporu\u010duje hodnota a\u017e 100 DPI. Vypl\u00fdv\u00e1 to jak ze vzd\u00e1lenosti, ze kter\u00e9 jsou tyto typy zpr\u00e1v viditeln\u00e9, tak velikosti souboru odeslan\u00e9ho do tisk\u00e1rny.&nbsp;<\/li><\/ul>\n\n\n\n<p>Pro tento typ produkt\u016f najdete pr\u016fvodce v pokynech, tedy zde:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/lh5.googleusercontent.com\/cSssc-WlhyByTaX6yycs1CBRhLDu33s7DwkHH34fgzGhPIKEDJF2YQ5xy_4PVwmtEPglIp23pnfK15M3swlqILhz25SEl95ZoVcTHKsQLDwQgr6Yco9NnYoISWhi3L_3ucw732I=s1600\" alt=\"Justprint -  typ produkt\u016f\"\/><\/figure><\/div>\n\n\n\n<p>U reklamn\u00edch banner\u016f v\u011bnujte pozornost t\u00e9to \u010d\u00e1sti:<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/lh6.googleusercontent.com\/gmJAFHIBzXiTpjXzLgcklb_Ae6IZucJTuZ1H9qAZYeUcgR_W9mzo4e91V4lSIvXuVwnUte8Wvpvfw7CR_tUZ85a124nPBEzTasHm1-N0ppWW_YfzaS3ZM1htx9CkqxR4lm-onZ0=s1600\" alt=\"jednostranny banner dpi\"\/><\/figure>\n\n\n\n<ul><li>V p\u0159\u00edpad\u011b materi\u00e1l\u016f st\u0159edn\u00edho form\u00e1tu viditeln\u00fdch i z v\u011bt\u0161\u00ed vzd\u00e1lenosti bude optim\u00e1ln\u00ed DPI 150. Jedn\u00e1 se nap\u0159\u00edklad o st\u011bny nebo <a href=\"https:\/\/justprint.cz\/produkty\/reklamni-stojany\">reklamn\u00ed stojany<\/a>.&nbsp;<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img src=\"https:\/\/lh5.googleusercontent.com\/9NB4wq3GKGiCYNP1vQfqi_6QmmpULVOVCi9oUry7C6Q6taADcM2zvRVkbrfkzkRIhnMlkWXP4L1dhruouYglKDmY00qqKa9BoboEpPRxClK8dvSCjpheydV8wUDX5wV7lc-X7Ko=s1600\" alt=\"dpi roll-up\n\"\/><\/figure><\/div>\n\n\n\n<ul><li>Pro tisk mal\u00e9ho form\u00e1tu nej\u010dast\u011bji sta\u010d\u00ed 300 DPI. To se t\u00fdk\u00e1 tisku materi\u00e1l\u016f, jako jsou nap\u0159\u00edklad vizitky, <a href=\"https:\/\/justprint.cz\/blog\/dobre-se-sklada-letak-ve-formatu-dl-bez-tajemstvi\/\">let\u00e1ky<\/a>, katalogy nebo hlavi\u010dkov\u00e9 pozn\u00e1mkov\u00e9 bloky.&nbsp;<\/li><\/ul>\n\n\n\n<p>Pou\u017eit\u00ed ni\u017e\u0161\u00edho rozli\u0161en\u00ed m\u016f\u017ee v\u00fdrazn\u011b sn\u00ed\u017eit kvalitu a ostrost ti\u0161t\u011bn\u00fdch sn\u00edmk\u016f. V na\u0161\u00ed tisk\u00e1rn\u011b, pokud je pou\u017eito p\u0159\u00edli\u0161 n\u00edzk\u00e9 DPI, m\u016f\u017ee b\u00fdt soubor odm\u00edtnut syst\u00e9mem nebo konzultantem.<\/p>\n\n\n\n<ul><li>P\u0159i tisku viditeln\u00e9m na kr\u00e1tkou vzd\u00e1lenost se nej\u010dast\u011bji doporu\u010duje pou\u017e\u00edvat DPI na \u00farovni 250. To se t\u00fdk\u00e1 produkt\u016f, jako je nap\u0159\u00edklad n\u00e1st\u011bnn\u00fd kalend\u00e1\u0159, pl\u00e1tna a plak\u00e1ty form\u00e1tu A1 nebo B1.&nbsp;<\/li><\/ul>\n\n\n\n<h2><strong>Se\u010dteno a podtr\u017eeno-jak\u00e9 DPI bude nejlep\u0161\u00ed?<\/strong><\/h2>\n\n\n\n<ul><li>Jak p\u0159\u00edli\u0161 vysok\u00e9, tak p\u0159\u00edli\u0161 n\u00edzk\u00e9 DPI m\u016f\u017ee zp\u016fsobit probl\u00e9my s tiskem. P\u0159\u00edli\u0161 n\u00edzk\u00e1 hodnota m\u016f\u017ee sn\u00ed\u017eit kvalitu tisku a vynechat d\u016fle\u017eit\u00e9 detaily projektu.<\/li><\/ul>\n\n\n\n<ul><li>DPI by m\u011bla b\u00fdt nastavena v t\u011bsn\u00e9m spojen\u00ed s hodnotou LPI<\/li><\/ul>\n\n\n\n<ul><li>V p\u0159\u00edpad\u011b v\u00fdtisk\u016f prohl\u00ed\u017een\u00fdch zbl\u00edzka se doporu\u010duje vy\u0161\u0161\u00ed DPI (p\u0159ibli\u017en\u011b 300 DPI)<\/li><\/ul>\n\n\n\n<p>Pou\u017eijte ni\u017e\u0161\u00ed rozli\u0161en\u00ed pro v\u00fdtisky viditeln\u00e9 z d\u00e1lky. Pro plak\u00e1ty cca 250 roll-up\u016f 150 a pro bannery a plak\u00e1ty XXL a\u017e 100 DPI.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u011bli jste p\u0159i p\u0159\u00edprav\u011b soubor\u016f k tisku probl\u00e9m s nastaven\u00edm optim\u00e1ln\u00ed hodnoty DPI? Va\u0161e v\u00fdtisky byly p\u0159\u00edli\u0161 t\u011b\u017ek\u00e9 nebo byla kvalita tisku p\u0159\u00edli\u0161 n\u00edzk\u00e1? Pokud ano, pak je tento \u010dl\u00e1nek&hellip;<\/p>\n","protected":false},"author":1,"featured_media":2986,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[36,37],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/justprint.cz\/blog\/wp-json\/wp\/v2\/posts\/2984"}],"collection":[{"href":"https:\/\/justprint.cz\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/justprint.cz\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/justprint.cz\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/justprint.cz\/blog\/wp-json\/wp\/v2\/comments?post=2984"}],"version-history":[{"count":5,"href":"https:\/\/justprint.cz\/blog\/wp-json\/wp\/v2\/posts\/2984\/revisions"}],"predecessor-version":[{"id":2993,"href":"https:\/\/justprint.cz\/blog\/wp-json\/wp\/v2\/posts\/2984\/revisions\/2993"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/justprint.cz\/blog\/wp-json\/wp\/v2\/media\/2986"}],"wp:attachment":[{"href":"https:\/\/justprint.cz\/blog\/wp-json\/wp\/v2\/media?parent=2984"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/justprint.cz\/blog\/wp-json\/wp\/v2\/categories?post=2984"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/justprint.cz\/blog\/wp-json\/wp\/v2\/tags?post=2984"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}