{"id":3288,"date":"2023-02-19T16:21:24","date_gmt":"2023-02-19T15:21:24","guid":{"rendered":"https:\/\/foto-video.dk\/?page_id=3288"},"modified":"2023-02-19T16:56:27","modified_gmt":"2023-02-19T15:56:27","slug":"14-1-2-1-eksempler-paa-kvalitetstab-komprimering-ved-jpg","status":"publish","type":"page","link":"https:\/\/foto-video.dk\/?page_id=3288","title":{"rendered":"14.1.2.1: Eksempler p\u00e5 kvalitetstab\/komprimering ved JPG"},"content":{"rendered":"<nav aria-label=\"breadcrumbs\">\n            <div class=\"breadcrumb-container theme1\">\n                <ol>\n                    <li><a title=\"Du er her\" href=\"#\"><span>Du er her<\/span><\/a><span class=\"separator\">&gt;&gt;<\/span><\/li>\n                    <\/ol>\n            <\/div>\n        <\/nav>    <script type=\"application\/ld+json\">\n        {\n            \"@context\": \"http:\/\/schema.org\",\n            \"@type\": \"BreadcrumbList\",\n            \"itemListElement\": [\n                 {\n                            \"@type\": \"ListItem\",\n                            \"position\": 1,\n                            \"item\": {\n                                \"@id\": \"#\",\n                                \"name\": \"Du er her\"\n                            }\n                        }\n                                                    ]\n        }\n    <\/script>\n   \n    <script>\n            <\/script>\n\n<hr \/>\n<table style=\"width: 99%; float: center; border: 0px; padding: 5px; margin-right: auto; margin-left: auto;\">\n<tbody>\n<tr>\n<td style=\"text-align: left; vertical-align: top; width: 46.6008%; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587 3840x2160.png\" alt=\"PNG billede af m\u00f8ns klint\" \/><\/td>\n<td style=\"text-align: left; vertical-align: middle; border: 0px; padding: 2px; width: 52.9765%;\">Dette foto af M\u00f8ns Klint er &#8211;<\/p>\n<ul>\n<li>Opl\u00f8sning 3840&#215;2160 pixels<\/li>\n<li>Ukomprimeret PNG-fil, dvs. at kvaliteten er n\u00e6r kvaliteten af r\u00e5filer.<\/li>\n<\/ul>\n<p>Dette foto pr\u00f8vede jeg at gemme som JPG med forskellige kvalitetsniveauer.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Derefter sammenlignede jeg de komprimerede fotos pixel for pixel imod PNG foto.<br \/>\nSammenlignings foto er r\u00f8dt, hvor der er forskel mellem det originale PNG foto og JPG fotoet. Desv\u00e6rre kan programmet jeg brugte ikke angive, hvor stor forskel der er mellem de to fotos, kun at der er en forskel. Jeg formoder, at de st\u00f8rste forskelle er at finde i farverne.<\/p>\n<p>&nbsp;<\/p>\n<table style=\"width: 99%; float: center; border: 0px; padding: 5px; margin-right: auto; margin-left: auto;\">\n<tbody>\n<tr>\n<th style=\"text-align: center; vertical-align: middle; width: 20%; border: 0px; padding: 2px;\">Kvalitet<\/th>\n<th style=\"text-align: center; vertical-align: middle; width: 40%; border: 0px; padding: 2px;\">Komprimerede JPG foto<\/th>\n<th style=\"text-align: center; vertical-align: middle; border: 0px; padding: 2px;\">Difference mellem PNG og JPG foto<\/th>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 20%; border: 0px; padding: 2px;\"><strong>PNG<\/strong><br \/>\n<strong>sammenlignet med<\/strong><br \/>\n<strong>PNG<\/strong><\/td>\n<td style=\"text-align: center; vertical-align: top; width: 40%; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587 3840x2160.png\" alt=\"PNG billede af m\u00f8ns klint\" \/><\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/PNG-PNG-difference-same-file.jpg\" alt=\"Differens billede af m\u00f8ns klint\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 20%; border: 0px; padding: 2px;\"><strong>100%<\/strong><\/td>\n<td style=\"text-align: center; vertical-align: top; width: 40%; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-3840x2160-100.jpg\" alt=\"100%JPG billede af m\u00f8ns klint\" \/><\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/PNG-JPG100-difference.jpg\" alt=\"Differens billede af m\u00f8ns klint\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 20%; border: 0px; padding: 2px;\"><strong>75%<\/strong><\/td>\n<td style=\"text-align: center; vertical-align: top; width: 40%; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-3840x2160-75.jpg\" alt=\"75%JPG billede af m\u00f8ns klint\" \/><\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/PNG-JPG75-difference.jpg\" alt=\"Differens billede af m\u00f8ns klint\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 20%; border: 0px; padding: 2px;\"><strong>50%<\/strong><\/td>\n<td style=\"text-align: center; vertical-align: top; width: 40%; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-3840x2160-50.jpg\" alt=\"50%JPG billede af m\u00f8ns klint\" \/><\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/PNG-JPG50-difference.jpg\" alt=\"Differens billede af m\u00f8ns klint\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 20%; border: 0px; padding: 2px;\"><strong>25%<\/strong><\/td>\n<td style=\"text-align: center; vertical-align: top; width: 40%; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-3840x2160-25.jpg\" alt=\"25%JPG billede af m\u00f8ns klint\" \/><\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/PNG-JPG25-difference.jpg\" alt=\"Differens billede af m\u00f8ns klint\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 20%; border: 0px; padding: 2px;\"><strong>0%<\/strong><\/td>\n<td style=\"text-align: center; vertical-align: top; width: 40%; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-3840x2160-0.jpg\" alt=\"0%JPG billede af m\u00f8ns klint\" \/><\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/PNG-JPG0-difference.jpg\" alt=\"Differens billede af m\u00f8ns klint\" \/><\/td>\n<\/tr>\n<p><!-----\n\n\n<tr>\n\n\n<td style=\"text-align: center; vertical-align: top; width: 20%; border: 0px; padding: 2px;\"><strong>PNG<\/strong>\n<strong>sammenlignet med<\/strong>\n<strong>PNG<\/strong><\/td>\n\n\n\n\n<td style=\"text-align: center; vertical-align: top; width: 40%; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587 3840x2160.png\" alt=\"PNG billede af m\u00f8ns klint\" \/><\/td>\n\n\n\n\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/PNG-PNG-difference-same-file.jpg\" alt=\"Differens billede af m\u00f8ns klint\" \/><\/td>\n\n\n<\/tr>\n\n\n\n\n<tr>\n\n\n<td style=\"text-align: center; vertical-align: top; width: 20%; border: 0px; padding: 2px;\"><strong>PNG<\/strong>\n<strong>sammenlignet med<\/strong>\n<strong>PNG<\/strong><\/td>\n\n\n\n\n<td style=\"text-align: center; vertical-align: top; width: 40%; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587 3840x2160.png\" alt=\"PNG billede af m\u00f8ns klint\" \/><\/td>\n\n\n\n\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/PNG-PNG-difference-same-file.jpg\" alt=\"Differens billede af m\u00f8ns klint\" \/><\/td>\n\n\n<\/tr>\n\n\n----><\/tbody>\n<\/table>\n<hr \/>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: center;\">Sammenligning af kvaliteten vha. zoom ind p\u00e5 foto<\/h3>\n<table style=\"width: 99%; float: center; border: 0px; padding: 5px; margin-right: auto; margin-left: auto;\">\n<tbody>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 30%; border: 0px; padding: 2px;\"><strong>Original (PNG) &#8211; 400% zoom (4x)<\/strong><\/p>\n<p>200&#215;200 pixels -&gt; 800&#215;800 pixels<\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" class=\"aligncenter wp-image-3325\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-1.png\" alt=\"\" width=\"800\" height=\"800\" srcset=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-1.png 200w, https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-1-150x150.png 150w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 30%; border: 0px; padding: 2px;\"><strong>JPG 100% kvalitet &#8211; 400% zoom (4x)<\/strong><\/p>\n<p>200&#215;200 pixels -&gt; 800&#215;800 pixels<\/p>\n<p>N\u00e6sten ingen komprimering<\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" class=\"aligncenter wp-image-3327\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-100.jpg\" alt=\"\" width=\"800\" height=\"800\" srcset=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-100.jpg 200w, https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-100-150x150.jpg 150w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 30%; border: 0px; padding: 2px;\"><strong>JPG 75% Kvalitet &#8211; 400% zoom (4x)<\/strong><\/p>\n<p>200&#215;200 pixels -&gt; 800&#215;800 pixels<\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" class=\"aligncenter wp-image-3328\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-75.jpg\" alt=\"\" width=\"800\" height=\"800\" srcset=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-75.jpg 200w, https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-75-150x150.jpg 150w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 30%; border: 0px; padding: 2px;\"><strong>JPG 50% kvalitet &#8211; 400% zoom (4x)<\/strong><\/p>\n<p>200&#215;200 pixels -&gt; 800&#215;800 pixels<\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" class=\"aligncenter wp-image-3329\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-50.jpg\" alt=\"\" width=\"800\" height=\"800\" srcset=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-50.jpg 200w, https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-50-150x150.jpg 150w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 30%; border: 0px; padding: 2px;\"><strong>JPG 25% kvalitet &#8211; 400% zoom (4x)<\/strong><\/p>\n<p>200&#215;200 pixels -&gt; 800&#215;800 pixels<\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" class=\"aligncenter wp-image-3330\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-25.jpg\" alt=\"\" width=\"800\" height=\"800\" srcset=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-25.jpg 200w, https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-25-150x150.jpg 150w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center; vertical-align: top; width: 30%; border: 0px; padding: 2px;\"><strong>JPG 0% kvalitet &#8211; 400% zoom (4x)<\/strong><\/p>\n<p>200&#215;200 pixels -&gt; 800&#215;800 pixels<\/p>\n<p>Maksimal komprimering<\/td>\n<td style=\"text-align: center; vertical-align: top; border: 0px; padding: 2px;\"><img decoding=\"async\" class=\"aligncenter wp-image-3331\" src=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-0.jpg\" alt=\"\" width=\"800\" height=\"800\" srcset=\"https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-0.jpg 200w, https:\/\/foto-video.dk\/wp-content\/uploads\/2023\/02\/2019_D810_00587-200x200-0-150x150.jpg 150w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Dette foto af M\u00f8ns Klint er &#8211; Opl\u00f8sning 3840&#215;2160 pixels Ukomprimeret PNG-fil, dvs. at kvaliteten er n\u00e6r kvaliteten af r\u00e5filer. Dette foto pr\u00f8vede jeg at gemme som JPG med forskellige kvalitetsniveauer. Derefter sammenlignede jeg de komprimerede fotos pixel for pixel imod PNG foto. Sammenlignings foto er r\u00f8dt, hvor der er forskel mellem det originale PNG [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3271,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3288","page","type-page","status-publish","hentry","post"],"_links":{"self":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/3288","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/foto-video.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3288"}],"version-history":[{"count":20,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/3288\/revisions"}],"predecessor-version":[{"id":3332,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/3288\/revisions\/3332"}],"up":[{"embeddable":true,"href":"https:\/\/foto-video.dk\/index.php?rest_route=\/wp\/v2\/pages\/3271"}],"wp:attachment":[{"href":"https:\/\/foto-video.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}