{"id":36948,"date":"2020-11-06T06:05:27","date_gmt":"2020-11-06T05:05:27","guid":{"rendered":"https:\/\/www.fotolab.cz\/blog\/?p=36948"},"modified":"2020-11-13T16:15:33","modified_gmt":"2020-11-13T15:15:33","slug":"doostreni-fotografii-jak-proc-a-kdy-doostrovat","status":"publish","type":"post","link":"https:\/\/www.fotolab.cz\/blog\/doostreni-fotografii-jak-proc-a-kdy-doostrovat\/","title":{"rendered":"Doost\u0159en\u00ed fotografi\u00ed \u2013 jak, pro\u010d a&nbsp;kdy doost\u0159ovat"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Obsah<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69f3dc8984d9d\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69f3dc8984d9d\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.fotolab.cz\/blog\/doostreni-fotografii-jak-proc-a-kdy-doostrovat\/#Doostreni_neni_zaostreni\" title=\"Doost\u0159en\u00ed nen\u00ed zaost\u0159en\u00ed\">Doost\u0159en\u00ed nen\u00ed zaost\u0159en\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.fotolab.cz\/blog\/doostreni-fotografii-jak-proc-a-kdy-doostrovat\/#Na_web_nebo_do_tisku\" title=\"Na web nebo do tisku\">Na web nebo do tisku<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.fotolab.cz\/blog\/doostreni-fotografii-jak-proc-a-kdy-doostrovat\/#Jak_a_v_cem_doostrovat\" title=\"Jak a&nbsp;v\u00a0\u010dem doost\u0159ovat\">Jak a&nbsp;v\u00a0\u010dem doost\u0159ovat<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.fotolab.cz\/blog\/doostreni-fotografii-jak-proc-a-kdy-doostrovat\/#Doporucene_nastaveni_doostreni\" title=\"Doporu\u010den\u00e9 nastaven\u00ed doost\u0159en\u00ed\">Doporu\u010den\u00e9 nastaven\u00ed doost\u0159en\u00ed<\/a><\/li><\/ul><\/nav><\/div>\n<p><strong>V\u011bt\u0161\u00ed \u010d\u00e1st fotografi\u00ed, kter\u00e9 po\u0159\u00edd\u00edte digit\u00e1ln\u00edm fotoapar\u00e1tem, je pot\u0159eba doost\u0159it. Nen\u00ed to chyba fotoapar\u00e1tu, sp\u00ed\u0161e nar\u00e1\u017e\u00edme na limity pou\u017e\u00edvan\u00e9 techniky a&nbsp;tak\u00e9 na to, \u017ee v&nbsp;digit\u00e1ln\u00edm sv\u011bt\u011b se \u010dasto pr\u016fm\u011bruje a&nbsp;zahazuj\u00ed se n\u011bkter\u00e1 data.<\/strong><!--more--><\/p>\n<p><strong>Ostrost samotn\u00e1 je velmi subjektivn\u00ed<\/strong> z\u00a0hlediska vn\u00edm\u00e1n\u00ed obrazu, pokud bychom se zam\u011b\u0159ili na ostrost z\u00a0exaktn\u00edho pohledu, pak <strong>je t\u0159eba br\u00e1t v\u00a0potaz celou \u0159adu faktor\u016f, jako je pozorovac\u00ed vzd\u00e1lenost obrazu, jeho velikost, rozli\u0161en\u00ed monitoru nebo tiskov\u00e9 rozli\u0161en\u00ed stroje, kter\u00fd fotku tiskne<\/strong>.<\/p>\n<p>V\u00a0praxi je v\u0161ak samotn\u00e1 ostrost a&nbsp;doost\u0159en\u00ed pom\u011brn\u011b snadn\u00fdm \u00fakonem. V\u00a0z\u00e1sad\u011b se toti\u017e jedn\u00e1 o&nbsp;jakousi degradaci obrazu, aby byl subjektivn\u011b lep\u0161\u00ed. Prakticky <strong>ka\u017ed\u00fd fotoapar\u00e1t sn\u00edmky doost\u0159uje<\/strong>, jednodu\u0161\u0161\u00ed kompakty v\u00edce, zat\u00edmco pokro\u010dilej\u0161\u00ed fotoapar\u00e1ty m\u00e9n\u011b, aby m\u011bl fotograf v\u011bt\u0161\u00ed kontrolu nad v\u00fdslednou podobou sn\u00edmku.<\/p>\n<p>Pokud budete pracovat s&nbsp;RAW daty, m\u016f\u017eete si ve srovn\u00e1n\u00ed se stejn\u00fdm sn\u00edmkem v&nbsp;JPEGu v\u0161imnout rozd\u00edln\u00e9 ostrosti, co\u017e je d\u00e1no pr\u016fchodem JPEGu obrazov\u00fdm procesorem, kde je doost\u0159en\u00ed aplikov\u00e1no.<\/p>\n<blockquote><p><strong>Obecn\u011b pak plat\u00ed v&nbsp;r\u00e1mci softwarov\u00fdch \u00faprav jednoduch\u00e9 pravidlo, a&nbsp;sice to, \u017ee doost\u0159ov\u00e1n\u00ed by m\u011blo b\u00fdt posledn\u00edm krokem p\u0159ed fin\u00e1ln\u00edm ulo\u017een\u00edm upravovan\u00e9ho sn\u00edmku.<\/strong><\/p><\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Doostreni_neni_zaostreni\"><\/span>Doost\u0159en\u00ed nen\u00ed zaost\u0159en\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Samotn\u00e9 doost\u0159ov\u00e1n\u00ed fotografie nen\u00ed nic jin\u00e9ho ne\u017e pr\u00e1ce s&nbsp;mikrokontrastem na hran\u00e1ch objekt\u016f, tedy dodate\u010dn\u011b se zvy\u0161uje kontrast mezi tmav\u00fdmi a&nbsp;sv\u011btl\u00fdmi pixely, kde se pak ztr\u00e1c\u00ed jemn\u00e9 p\u0159echody, kter\u00e9 vn\u00edm\u00e1me pr\u00e1v\u011b jako m\u011bkkou kresbu \u010di zaost\u0159en\u00ed.\u00a0Samoz\u0159ejm\u011b zde plat\u00ed to stejn\u00e9, co u&nbsp;jak\u00e9koli softwarov\u00e9 \u00fapravy fotografie \u2013 <strong>s m\u00edrou doost\u0159en\u00ed se to nesm\u00ed p\u0159eh\u00e1n\u011bt, proto\u017ee pot\u00e9 vznikaj\u00ed viditeln\u00e9 artefakty<\/strong> p\u0159eost\u0159en\u00ed, kdy sn\u00edmek nevypad\u00e1 p\u0159irozen\u011b a&nbsp;p\u016fsob\u00ed a\u017e nep\u011bkn\u011b.<\/p>\n<p>V\u00fdrazn\u00fd vliv na ostrost fotografie m\u00e1 kvalita pou\u017e\u00edvan\u00e9ho objektivu, zejm\u00e9na dra\u017e\u0161\u00ed objektivy, pou\u017e\u00edvaj\u00ed vysokojakostn\u00ed \u010do\u010dky a&nbsp;optickou stavbu takovou, aby byla maximalizov\u00e1na schopnost p\u0159en\u00e1\u0161en\u00ed kontrastu, a&nbsp;tud\u00ed\u017e se tak\u00e9 zvy\u0161uje ostrost sn\u00edmku. Opa\u010dn\u00fdm sm\u011brem (k&nbsp;hor\u0161\u00ed ostrosti) pak ovliv\u0148uje obraz nap\u0159\u00edklad pr\u016fm\u011brov\u00e1n\u00ed obrazov\u00e9 informace u&nbsp;Bayeorvy masky na sn\u00edma\u010di nebo antialiasingov\u00fd filtr p\u0159ed sn\u00edma\u010dem.<\/p>\n<figure id=\"attachment_36958\" aria-describedby=\"caption-attachment-36958\" style=\"width: 544px\" class=\"wp-caption aligncenter\"><a class=\"gridlove-popup-img\" href=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/picture-style-customize_1488-10.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-36958\" src=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/picture-style-customize_1488-10.jpg\" alt=\"\" width=\"544\" height=\"363\" srcset=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/picture-style-customize_1488-10.jpg 544w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/picture-style-customize_1488-10-300x200.jpg 300w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/picture-style-customize_1488-10-50x33.jpg 50w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/picture-style-customize_1488-10-370x247.jpg 370w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/picture-style-customize_1488-10-270x180.jpg 270w\" sizes=\"(max-width: 544px) 100vw, 544px\" \/><\/a><figcaption id=\"caption-attachment-36958\" class=\"wp-caption-text\">Nastaven\u00ed detail\u016f obrazov\u00e9ho re\u017eimu Picture Style u&nbsp;fotoapar\u00e1t\u016f Canon<\/figcaption><\/figure>\n<p><strong>Doost\u0159ovat m\u00e1 smysl ka\u017edou fotografii<\/strong>, i&nbsp;tu kter\u00e1 se ji\u017e sama o&nbsp;sob\u011b jev\u00ed ostr\u00e1, je to vlastn\u011b jak\u00e1si pomocn\u00e1 ruka va\u0161emu objektivu. <strong>Jedna v\u00fdjimka zde v\u0161ak plat\u00ed \u2013 fotografie, na nich\u017e je zachycena pohybov\u00e1 neostrost<\/strong>, tedy vliv p\u0159\u00edli\u0161 dlouh\u00e9ho expozi\u010dn\u00edho \u010dasu, nikoli vliv \u0161patn\u00e9ho zaost\u0159en\u00ed objektivem. U&nbsp;takov\u00fdch sn\u00edmk\u016f v\u00e1m bohu\u017eel nepom\u016f\u017ee nic.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Na_web_nebo_do_tisku\"><\/span>Na web nebo do tisku<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A\u010dkoli jsou n\u00e1stroje pro doost\u0159ov\u00e1n\u00ed u\u017eivatelsky snadno nastaviteln\u00e9, p\u0159i samotn\u00e9m pou\u017eit\u00ed <strong>nen\u00ed mo\u017en\u00e9 jednodu\u0161e zvolit univerz\u00e1ln\u00ed nastaven\u00ed<\/strong>. V\u017edy toti\u017e bude z\u00e1le\u017eet nejen na obsahu sn\u00edmku a&nbsp;po\u017eadavc\u00edch fotografa, ale p\u0159edev\u0161\u00edm na tom, jak bude fotografie n\u00e1sledn\u011b prezentov\u00e1na.<\/p>\n<p>I proto je vhodn\u00e9 nechat doost\u0159en\u00ed a\u017e na fin\u00e1ln\u00ed f\u00e1zi \u00fapravy fotografie a&nbsp;<strong>p\u0159\u00edmo ve fotoapar\u00e1tu doost\u0159ovat sp\u00ed\u0161e m\u00e9n\u011b nebo v\u016fbec<\/strong>. To je samoz\u0159ejm\u011b v&nbsp;rozporu s&nbsp;t\u00edm, kdy\u017e chcete m\u00edt hned na pam\u011b\u0165ov\u00e9 kart\u011b dobrou fotku. V&nbsp;takov\u00fdch p\u0159\u00edpadech je vhodn\u011bj\u0161\u00ed cestou p\u0159izp\u016fsoben\u00ed obrazov\u00e9ho procesoru pomoc\u00ed n\u011bkter\u00e9ho z&nbsp;obrazov\u00fdch styl\u016f (Picture style, Picture Control), kde je mo\u017en\u00e1 m\u00edru ostrosti v&nbsp;z\u00e1kladn\u00ed \u0161k\u00e1le nastavit.<\/p>\n<figure id=\"attachment_36954\" aria-describedby=\"caption-attachment-36954\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><a class=\"gridlove-popup-img\" href=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-36954\" src=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920.jpg\" alt=\"\" width=\"800\" height=\"531\" srcset=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920.jpg 1920w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920-300x199.jpg 300w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920-768x510.jpg 768w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920-1536x1020.jpg 1536w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920-50x33.jpg 50w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920-370x246.jpg 370w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920-270x179.jpg 270w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920-740x491.jpg 740w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption id=\"caption-attachment-36954\" class=\"wp-caption-text\">Sn\u00edmek bez doost\u0159en\u00ed (klikn\u011bte pro pln\u00e9 rozli\u0161en\u00ed)<\/figcaption><\/figure>\n<p><strong>Budete-li fotografie tisknout je t\u0159eba doost\u0159en\u00ed vy\u0161\u0161\u00ed<\/strong>, kter\u00e9 m\u016f\u017ee na monitoru vypadat a\u017e jako nep\u0159irozen\u011b p\u0159eost\u0159en\u00fd sn\u00edmek. To je d\u00e1no samotn\u00fdm principem vzniku fotky, kdy jsou na pap\u00edr nan\u00e1\u0161eny mikrokapi\u010dky inkoustu a&nbsp;ten se v\u017edy n\u011bjak\u00fdm zp\u016fsobem rozp\u00edj\u00ed \u2013 tedy se sni\u017euje kontrast a&nbsp;s\u00a0n\u00edm i&nbsp;ostrost. <strong>Siln\u011bj\u0161\u00edm doost\u0159en\u00edm je pak mo\u017en\u00e9 efekt rozp\u00edjen\u00ed se inkoustu eliminovat<\/strong>, v\u00a0ka\u017ed\u00e9m p\u0159\u00edpad\u011b je v\u0161ak t\u0159eba ud\u011blat zku\u0161ebn\u00ed v\u00fdtisk, jeliko\u017e m\u00edra rozp\u00edjen\u00ed inkoustu je siln\u011b z\u00e1visl\u00e1 na pou\u017eit\u00e9m pap\u00edru.<\/p>\n<div class=\"row-fluid\">\n<div class=\"span6 rhcol\">\n<figure id=\"attachment_36956\" aria-describedby=\"caption-attachment-36956\" style=\"width: 1920px\" class=\"wp-caption aligncenter\"><a class=\"gridlove-popup-img\" href=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_maskovani.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-36956 size-full\" src=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_maskovani.jpg\" alt=\"\" width=\"1920\" height=\"1275\" srcset=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_maskovani.jpg 1920w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_maskovani-300x199.jpg 300w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_maskovani-768x510.jpg 768w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_maskovani-1536x1020.jpg 1536w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_maskovani-50x33.jpg 50w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_maskovani-370x246.jpg 370w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_maskovani-270x179.jpg 270w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_maskovani-740x491.jpg 740w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/a><figcaption id=\"caption-attachment-36956\" class=\"wp-caption-text\">Sn\u00edmek po aplikaci filtru Maskov\u00e1n\u00ed neostrosti (klikn\u011bte pro pln\u00e9 rozli\u0161en\u00ed)<\/figcaption><\/figure>\n<\/div>\n<div class=\"span6 rhcol\">\n<figure id=\"attachment_36955\" aria-describedby=\"caption-attachment-36955\" style=\"width: 1920px\" class=\"wp-caption aligncenter\"><a class=\"gridlove-popup-img\" href=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_chytre.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-36955 size-full\" src=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_chytre.jpg\" alt=\"\" width=\"1920\" height=\"1275\" srcset=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_chytre.jpg 1920w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_chytre-300x199.jpg 300w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_chytre-768x510.jpg 768w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_chytre-1536x1020.jpg 1536w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_chytre-50x33.jpg 50w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_chytre-370x246.jpg 370w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_chytre-270x179.jpg 270w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/microphone-1246057_1920_chytre-740x491.jpg 740w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/a><figcaption id=\"caption-attachment-36955\" class=\"wp-caption-text\">Sn\u00edmek po aplikaci filtru Chytr\u00e9 doost\u0159en\u00ed (klikn\u011bte pro pln\u00e9 rozli\u0161en\u00ed)<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>Odli\u0161n\u00e1 bude m\u00edra doost\u0159en\u00ed tak\u00e9 u&nbsp;r\u016fzn\u011b velk\u00fdch fotografi\u00ed, v\u00a0p\u0159\u00edpad\u011b sn\u00edmku s\u00a0rozli\u0161en\u00edm 10 Mpx se shodn\u00e9 nastaven\u00ed doost\u0159ovac\u00edho algoritmu projev\u00ed mnohem m\u00e9n\u011b v\u00fdrazn\u011b, ne\u017e v\u00a0p\u0159\u00edpad\u011b fotografie o&nbsp;rozli\u0161en\u00ed 2 Mpx.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Jak_a_v_cem_doostrovat\"><\/span>Jak a&nbsp;v\u00a0\u010dem doost\u0159ovat<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Prakticky <strong>ka\u017ed\u00fd fotoeditor je vybaven funkc\u00ed pro doost\u0159en\u00ed sn\u00edmku<\/strong>, obvykle se jedn\u00e1 o&nbsp;funkc\u00ed n\u011bkolik, kdy n\u011bkter\u00e9 pracuj\u00ed pln\u011b automaticky, kde\u017eto jin\u00e9 umo\u017e\u0148uj\u00ed u\u017eivatelsk\u00e9 p\u0159izp\u016fsoben\u00ed. V\u00a0p\u0159\u00edpad\u011b program\u016f <strong>Adobe Photoshop <\/strong>nebo<strong> Zoner Photo Studio<\/strong> najdete p\u0159\u00edmo funkci nazvanou <strong>Doost\u0159it <\/strong>nebo<strong> Chytr\u00e9 ost\u0159en\u00ed<\/strong>.<\/p>\n<p>V\u00a0jin\u00fdch editorech je obvykle zachov\u00e1n shodn\u00fd princip, jeliko\u017e se ponejv\u00edce inspirovali pr\u00e1v\u011b u&nbsp;Adobe Photoshopu, kter\u00fd s\u00a0funkc\u00ed p\u0159i\u0161el mezi prvn\u00edmi. Funkce doost\u0159it obsahuje t\u0159i dal\u0161\u00ed parametry, kter\u00fdmi je mo\u017en\u00e9 m\u00edru doost\u0159en\u00ed upravit \u2013 jsou to <strong>M\u00edra (Amount) <\/strong>\u010di<strong> S\u00edla, Polom\u011br (Radius) a&nbsp;Pr\u00e1h (Treshold)<\/strong>.<\/p>\n<figure id=\"attachment_36951\" aria-describedby=\"caption-attachment-36951\" style=\"width: 947px\" class=\"wp-caption aligncenter\"><a class=\"gridlove-popup-img\" href=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-36951 size-full\" src=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_1.png\" alt=\"\" width=\"947\" height=\"358\" srcset=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_1.png 947w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_1-300x113.png 300w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_1-768x290.png 768w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_1-50x19.png 50w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_1-370x140.png 370w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_1-270x102.png 270w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_1-740x280.png 740w\" sizes=\"(max-width: 947px) 100vw, 947px\" \/><\/a><figcaption id=\"caption-attachment-36951\" class=\"wp-caption-text\">Dialogov\u00e9 okno Doost\u0159it v&nbsp;Zoner Photo Studiu<\/figcaption><\/figure>\n<p>Ka\u017ed\u00fd parametr pak ovliv\u0148uje n\u011bco jin\u00e9ho. <strong>M\u00edra<\/strong> se ud\u00e1v\u00e1 v&nbsp;procentech a&nbsp;<strong>ur\u010duje s\u00edlu ost\u0159en\u00ed<\/strong>. <strong>Polom\u011br ur\u010duje po\u010det zm\u011bn\u011bn\u00fdch pixel\u016f v&nbsp;okol\u00ed p\u0159echod\u016f jas\u016f a&nbsp;st\u00edn\u016f<\/strong> \u2013 vy\u0161\u0161\u00ed hodnota znamen\u00e1 viditeln\u011bj\u0161\u00ed doost\u0159en\u00ed. <strong>Pr\u00e1h<\/strong> je hodnota, kter\u00e1 <strong>ur\u010duje jak velk\u00fd rozd\u00edl hodnoty mezi sv\u011btl\u00fdmi a&nbsp;tmav\u00fdmi pixely m\u00e1 b\u00fdt<\/strong>, aby bylo pro tuto oblast doost\u0159ov\u00e1n\u00ed aplikov\u00e1no.<\/p>\n<p>P\u0159i siln\u00e9m doost\u0159en\u00ed mohou vzniknout viditeln\u011b ru\u0161iv\u00e9 kontury okolo objekt\u016f \u2013 tzv. halo efekt. Pomoc\u00ed nastaven\u00ed Polom\u011br je mo\u017en\u00e9 tento efekt neutralizovat. P\u0159i siln\u00e9m doost\u0159en\u00ed se v&nbsp;hladk\u00fdch ploch\u00e1ch za\u010dne objevovat ru\u0161iv\u00fd \u0161um. K&nbsp;eliminaci tohoto probl\u00e9mu slou\u017e\u00ed funkce Pr\u00e1h. V\u017edy je v\u0161ak t\u0159eba p\u0159istupovat k&nbsp;doost\u0159en\u00ed fotografi\u00ed individu\u00e1ln\u011b.<\/p>\n<figure id=\"attachment_36952\" aria-describedby=\"caption-attachment-36952\" style=\"width: 757px\" class=\"wp-caption aligncenter\"><a class=\"gridlove-popup-img\" href=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_5.png\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-36952 size-full\" src=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_5.png\" alt=\"\" width=\"757\" height=\"575\" srcset=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_5.png 757w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_5-300x228.png 300w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_5-50x38.png 50w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_5-370x281.png 370w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_5-270x205.png 270w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_5-740x562.png 740w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2020\/09\/doostreni_5-80x60.png 80w\" sizes=\"(max-width: 757px) 100vw, 757px\" \/><\/a><figcaption id=\"caption-attachment-36952\" class=\"wp-caption-text\">Dialogov\u00e9 okno Chytr\u00e9 zost\u0159en\u00ed v&nbsp;Adobe Photoshop<\/figcaption><\/figure>\n<p>Dal\u0161\u00ed funkce Chytr\u00e9 doost\u0159en\u00ed funguje velmi podobn\u011b, m\u00e1 v\u0161ak nav\u00edc <strong>parametr Detekce hran, d\u00edky n\u011bmu\u017e nehroz\u00ed p\u0159eost\u0159en\u00ed sn\u00edmku<\/strong> \u2013 doporu\u010dujeme pou\u017e\u00edvat u&nbsp;v\u011bt\u0161\u00edch z\u00e1sah\u016f do sn\u00edmku. Rychl\u00e9 doost\u0159en\u00ed zvl\u00e1dnete pomoc\u00ed Maskov\u00e1n\u00ed neostrosti, p\u0159\u00edpadn\u011b u&nbsp;Zoneru je\u0161t\u011b mo\u017enost Plo\u0161n\u00e9 doost\u0159en\u00ed.<strong> V\u017edy pracujte se 100% zv\u011bt\u0161en\u00edm sn\u00edmku<\/strong>, p\u0159i cel\u00e9m n\u00e1hledu sn\u00edmku na obrazovce se m\u016f\u017ee zd\u00e1t ostr\u00fd, i&nbsp;kdy\u017e v\u00a0detailu je\u0161t\u011b objev\u00edte rezervy.<\/p>\n<hr \/>\n<h2 style=\"padding-left: 40px;\"><span class=\"ez-toc-section\" id=\"Doporucene_nastaveni_doostreni\"><\/span><strong>Doporu\u010den\u00e9 nastaven\u00ed doost\u0159en\u00ed<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"padding-left: 40px;\">Jak ji\u017e bylo uvedeno, ka\u017ed\u00fd sn\u00edmek by m\u011bl b\u00fdt doost\u0159ov\u00e1n individu\u00e1ln\u011b, pokud se v\u0161ak pod\u00edv\u00e1me na jeho obsah, je mo\u017en\u00e9 vych\u00e1zet z\u00a0n\u00e1sleduj\u00edc\u00edch hodnot a&nbsp;pot\u00e9 je m\u00edrn\u011b uzp\u016fsobit podle sv\u00e9ho.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Jemn\u00e9 doost\u0159en\u00ed<\/strong> \u2013 portr\u00e9ty: M\u00edra = 80 %, Polom\u011br = 2, Pr\u00e1h = 3<\/li>\n<li><strong>Velmi jemn\u00e9 doost\u0159en\u00ed\u00a0<\/strong>\u2013 reklamn\u00ed v\u00fdrobky, budovy, exteri\u00e9r, interi\u00e9r: M\u00edra = 230 %, Polom\u011br = 0,4\u20130,5, Pr\u00e1h = 3<\/li>\n<li><strong>Univerz\u00e1ln\u00ed doost\u0159en\u00ed<\/strong>\u00a0\u2013 k&nbsp;b\u011b\u017en\u00e9mu pou\u017eit\u00ed: M\u00edra = 80\u2013100 %, Polom\u011br = 1, Pr\u00e1h = 4<\/li>\n<li><strong>Doost\u0159en\u00ed po zmen\u0161en\u00ed<\/strong>\u00a0\u2013 sn\u00edmky na web a&nbsp;s\u00a0dpi sn\u00ed\u017een\u00fdm na 72: M\u00edra = 400 %, Polom\u011br = 0,2\u20130,3, Pr\u00e1h = 0<\/li>\n<li><strong>Maxim\u00e1ln\u00ed doost\u0159en\u00ed<\/strong>\u00a0\u2013 rozost\u0159en\u00e9 sn\u00edmky: M\u00edra = 50 %, Polom\u011br = 4, Pr\u00e1h = 2<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<p>V\u00a0z\u00e1vislosti na obsahu fotografie bude nastaven\u00ed parametr\u016f odli\u0161n\u00e9, pokud bychom m\u011bli alespo\u0148 n\u011bjak up\u0159esnit tak <strong>s\u00edlu efektu klidn\u011b zvolte vy\u0161\u0161\u00ed, tedy mezi 80 a&nbsp;180<\/strong>. <strong>U polom\u011bru doost\u0159en\u00ed<\/strong> se sp\u00ed\u0161e dr\u017ete p\u0159i zemi, <strong>ide\u00e1ln\u00ed rozmez\u00ed je 0,7 a\u017e 1,5<\/strong> (vy\u0161\u0161\u00ed hodnota pro tisk s\u00a0vy\u0161\u0161\u00edm rozli\u0161en\u00edm), pot\u00e9 ji\u017e fotografie nevypad\u00e1 p\u0159irozen\u011b. <strong>Pr\u00e1h doost\u0159en\u00ed obvykle volte v\u00a0rozmez\u00ed 2 a\u017e 5<\/strong>, v\u00a0p\u0159\u00edpad\u011b v\u00fdrazn\u011bj\u0161\u00edho \u0161umu pom\u00e1h\u00e1 zv\u00fd\u0161en\u00ed t\u00e9to hodnoty.<\/p>\n<p>V\u00a0p\u0159\u00edpad\u011b <strong>tisku fotografi\u00ed na inkoustov\u00e9 tisk\u00e1rn\u011b<\/strong> m\u016f\u017eete postupovat podle n\u00e1sleduj\u00edc\u00edho \u010dasto praktikovan\u00e9ho postupu: Za\u010dn\u011bte hodnotou <strong>M\u00edra nastavenou na maximum<\/strong>, n\u00e1sledn\u011b <strong>Polom\u011br upravte na hodnotu 1 a&nbsp;Pr\u00e1h na 0<\/strong>. Pokud se objev\u00ed v&nbsp;obr\u00e1zku \u0161um ve v\u011bt\u0161\u00ed m\u00ed\u0159e, pak je nutn\u00e9 p\u0159idat na hodnot\u011b Pr\u00e1h. Nakonec se uprav\u00ed M\u00edra, aby obr\u00e1zek p\u016fsobil dob\u0159e.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u011bt\u0161\u00ed \u010d\u00e1st fotografi\u00ed, kter\u00e9 po\u0159\u00edd\u00edte digit\u00e1ln\u00edm fotoapar\u00e1tem, je pot\u0159eba doost\u0159it. Nen\u00ed to chyba fotoapar\u00e1tu, sp\u00ed\u0161e nar\u00e1\u017e\u00edme na limity pou\u017e\u00edvan\u00e9 techniky a&nbsp;tak\u00e9 na to, \u017ee v&nbsp;digit\u00e1ln\u00edm sv\u011bt\u011b se \u010dasto pr\u016fm\u011bruje a&nbsp;zahazuj\u00ed se n\u011bkter\u00e1 data.<\/p>\n","protected":false},"author":256,"featured_media":31526,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[559,18],"tags":[],"class_list":["post-36948","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fotolab-fotoradce","category-novinky"],"wppr_data":{"cwp_meta_box_check":"No"},"_links":{"self":[{"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/posts\/36948"}],"collection":[{"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/users\/256"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/comments?post=36948"}],"version-history":[{"count":9,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/posts\/36948\/revisions"}],"predecessor-version":[{"id":38004,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/posts\/36948\/revisions\/38004"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/media\/31526"}],"wp:attachment":[{"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/media?parent=36948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/categories?post=36948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/tags?post=36948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}