{"id":6565,"date":"2024-02-19T11:47:55","date_gmt":"2024-02-19T11:47:55","guid":{"rendered":"https:\/\/csiag.eu\/?p=6565"},"modified":"2024-02-21T10:18:15","modified_gmt":"2024-02-21T10:18:15","slug":"generer-qr-kode","status":"publish","type":"post","link":"https:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/","title":{"rendered":"Generer QR-kode"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Indholdsfortegnelse<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<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:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/#Grundlagen\" >Grundl\u00e6ggende<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/#Fehlerkorrektur\" >Korrektion af fejl<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/#Bildformate\" >Billedformater<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/#GIF\" >GIF<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/#BMP\" >BMP<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/#JPGJPEG\" >JPG\/JPEG<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/#PNG\" >PNG<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/#SVG\" >SVG<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/#%E2%80%A6_unter_MS_Windows\" >... under MS Windows<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/#%E2%80%A6_unter_Mac_OS\" >... under Mac OS<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">L\u00e6setid<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutter<\/span><\/span>\n<p class=\"wp-block-paragraph\">At generere en QR-kode er interessant for alle dem, der f.eks. vil dele et link p\u00e5 en hjemmeside. Men en QR-kode kan ogs\u00e5 indeholde andre oplysninger.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Det er muligt at generere QR-koder online eller offline. Sidstn\u00e6vnte er den mest anbefalelsesv\u00e6rdige metode, da ingen data kommer i h\u00e6nderne p\u00e5 tredjeparter, og du forbliver herre over dine egne data, og ingen registrering osv. er n\u00f8dvendig for at bruge onlinetjenester.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Et passende program b\u00f8r derfor altid installeres lokalt for at kunne generere QR-koder sikkert og uden involvering af tredjeparter.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Grundlagen\"><\/span>Grundl\u00e6ggende<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fehlerkorrektur\"><\/span>Korrektion af fejl<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">QR-koder indeholder ikke kun de brugerspecifikke oplysninger, men ogs\u00e5 fejlkorrektionsmekanismer i forskellige grader (7 .. 30%). Det betyder, at op til 30% af kodebilledet kan v\u00e6re ul\u00e6seligt, ridset eller p\u00e5 anden m\u00e5de gjort uigenkendeligt, men informationen forbliver stadig fuldt l\u00e6sbar.<br>Du b\u00f8r derfor altid v\u00e6lge det h\u00f8jeste korrektionsniveau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Bildformate\"><\/span>Billedformater<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Forskellige billedformater d\u00e6kker en bred vifte af anvendelsesmuligheder. Hvilket format, der skal foretr\u00e6kkes, afh\u00e6nger blandt andet af den \u00f8nskede datam\u00e6ngde eller mulige skalerbarhed. Pixelformater varierer fra 1, 4, 8 eller 24 bit\/pixel. 4-bit-formatet er tilstr\u00e6kkeligt til de fleste anvendelser.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hvis du vil vide mere om billedformater, skal du l\u00e6se dette afsnit til ende, hvis du kun vil generere QR-koder, skal du rulle ned for at hente programmet, afh\u00e6ngigt af dit operativsystem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For fuldst\u00e6ndighedens skyld, og fordi QR-koder ogs\u00e5 kan genereres i farver, beskrives de forskellige formater mere detaljeret her:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"GIF\"><\/span>GIF<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">GIF (Graphics Interchange Format) - viser op til 256 farver med 8-bit RGB-farvedybde og tilbyder tabsfri komprimering.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"BMP\"><\/span>BMP<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">BMP (BitMaP) - underst\u00f8tter 256-bit RGB og viser over 16 millioner farver uden komprimering. St\u00f8rre billeder har en h\u00f8j datam\u00e6ngde, og derfor bruges BMP-formatet kun til sm\u00e5 grafikker, symboler osv.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"JPGJPEG\"><\/span>JPG\/JPEG<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">JPG\/JPEG (Joint Photographic Experts Group) - er det mest anvendte format i den grafiske sektor og viser over 16 millioner farver. Takket v\u00e6re komprimering, der kan skaleres fra 0 ... 100 %, kan kvalitet og filst\u00f8rrelse kontrolleres.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PNG\"><\/span>PNG<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">PNG (Portable Network Graphics) - viser 256 farver i PNG-8-format, hvilket svarer til 8-bit RGB-farvedybde, og over 16 millioner farver i PNG-24-format, hvilket svarer til 256-bit RGB-farvedybde. Komprimeringen er tabsfri, men producerer st\u00f8rre filer end GIF-formatet, men kombinerer fordelene ved JPG\/JPEG- og GIF-formaterne.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"SVG\"><\/span>SVG<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">SVG (Scalable Vector Graphics) - underst\u00f8tter 256-bit RGB og viser over 16 millioner farver uden komprimering, muligg\u00f8r tabsfri skalering og tilbyder forskellige funktioner, der er fordelagtige i den grafiske sektor, som f.eks. skyggedannelse osv.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%80%A6_unter_MS_Windows\"><\/span>... under MS Windows<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hvis du er p\u00e5 udkig efter en brugervenlig QR-generator og ikke \u00f8nsker at installere nogen s\u00e6rlig Java-software, kan den gratis <em><a href=\"https:\/\/fmcoders.com\/qr-code-generator\/\" target=\"_blank\" rel=\"noreferrer noopener\">Nem QR-kode-generator<\/a> <\/em>godt hjulpet af fmcoders. Den st\u00e5r <a href=\"https:\/\/fmcoders.com\/products\/Easy-QR-Code-Generator-Setup.exe\" target=\"_blank\" rel=\"noreferrer noopener\">her<\/a> tilg\u00e6ngelig til download.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">QR-kodegeneratorens funktion er beskrevet mere detaljeret p\u00e5 nedenst\u00e5ende hjemmeside. Med undtagelse af SVG underst\u00f8tter den alle de formater, der er n\u00e6vnt ovenfor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E2%80%A6_unter_Mac_OS\"><\/span>... under Mac OS<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Der er flere programmer, et meget magert, men stadig konfigurerbart i de vigtigste parametre, gratis program er <em>KUAR<\/em> fra <a href=\"https:\/\/apps.apple.com\/us\/developer\/igor-savelev\/id1032535174\" target=\"_blank\" rel=\"noopener\">Igor Savelev<\/a>som kan downloades fra Apple App Store. Programmet underst\u00f8tter alle de formater, der er n\u00e6vnt ovenfor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">QR-koder, der skal bruges p\u00e5 hjemmesider, udskrifter osv., skal bruges i PNG-format; p\u00e5 udskrifter i stort format som bannere, plakater osv. foretr\u00e6kkes SVG-format.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"880\" src=\"https:\/\/csiag.eu\/wp-content\/uploads\/2024\/02\/image-1-1024x880.png\" alt=\"\" class=\"wp-image-6591\" style=\"width:637px;height:auto\" srcset=\"https:\/\/csiag.eu\/wp-content\/uploads\/2024\/02\/image-1-1024x880.png 1024w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/02\/image-1-14x12.png 14w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/02\/image-1-300x258.png 300w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/02\/image-1-768x660.png 768w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/02\/image-1.png 1424w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Et eksempel p\u00e5 de fleste QR-kodegeneratorer er h\u00e5ndteringen af <em>KUAR<\/em> forklaret:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>I det h\u00f8jre omr\u00e5de under \"<em>Indtast tekst nedenfor<\/em>\", for eksempel indtastes det link, der skal genereres som en QR-kode<\/li>\n\n\n\n<li>Kodegrafikken vises straks til venstre, og den kan tr\u00e6kkes og slippes ind i et hvilket som helst program.<\/li>\n\n\n\n<li>St\u00f8rrelsen kan justeres ved hj\u00e6lp af knapperne <em>S, M<\/em> og <em>L<\/em> varierer.<\/li>\n\n\n\n<li>Uanset om den sorte grafik s<em>sort p\u00e5 hvid<\/em>, <em>hvid p\u00e5 sort<\/em>, <em>sort p\u00e5 transparent<\/em> eller <em>hvid p\u00e5 transparent<\/em> grund kan indstilles ved hj\u00e6lp af den midterste r\u00e6kke af knapper.<\/li>\n\n\n\n<li>Fejlkorrektionen af defineres i stigende grad fra venstre mod h\u00f8jre via de nederste knapper<br>(<em>L<\/em> = lav,<em> H<\/em> = h\u00f8jeste fejlkorrektion)<\/li>\n\n\n\n<li>Over det indtastede link vises <em>Billedformat<\/em> defineret, vil grafikken i <em>Cache<\/em> kopieret, p\u00e5 <em>Harddisk<\/em> sikret eller <em>aflyst<\/em> blive.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">L\u00e6setid<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutter<\/span><\/span>At generere en QR-kode er interessant for alle dem, der f.eks. vil dele et link p\u00e5 en hjemmeside. Men en QR-kode kan ogs\u00e5 indeholde andre oplysninger. Det er muligt at generere QR-koder online, men ogs\u00e5 offline. Sidstn\u00e6vnte er den mest anbefalelsesv\u00e6rdige metode, da ingen data kommer i h\u00e6nderne p\u00e5 tredjeparter, og du har kontrol over dine egne data.&nbsp;<a href=\"https:\/\/csiag.eu\/da\/blog\/2024\/02\/19\/qr-code-generieren\/\" rel=\"bookmark\">L\u00e6s mere \"<span class=\"screen-reader-text\">Generer QR-kode<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[2039,2733,2734],"tags":[3034,3041,3029,3042,3043,3044,2078,3023,3047,3048,3028,3037,3027,3026,3046,3045,3038,3022,1270,3039,3040,3033,3020,3021,3030,3032,3024,2065],"class_list":["post-6565","post","type-post","status-publish","format-standard","hentry","category-internet","category-mac-os","category-windows","tag-banner","tag-bildformat","tag-bmp","tag-dateigroesse","tag-datenaufkommen","tag-datenmenge","tag-download","tag-easy-qr-code-generator","tag-fehler-korrektur","tag-fehlerkorrektur","tag-gif","tag-grafikbereich","tag-jpeg","tag-jpg","tag-kompression","tag-korrekturstufe","tag-kostenfrei","tag-kuar","tag-mac-os","tag-pixel","tag-pixelformat","tag-poster","tag-qr-code","tag-qr-codes","tag-rgb","tag-skalierbar","tag-svg","tag-windows"],"modified_by":"Achim Goerner","_links":{"self":[{"href":"https:\/\/csiag.eu\/da\/wp-json\/wp\/v2\/posts\/6565","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/csiag.eu\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/csiag.eu\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/csiag.eu\/da\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/csiag.eu\/da\/wp-json\/wp\/v2\/comments?post=6565"}],"version-history":[{"count":0,"href":"https:\/\/csiag.eu\/da\/wp-json\/wp\/v2\/posts\/6565\/revisions"}],"wp:attachment":[{"href":"https:\/\/csiag.eu\/da\/wp-json\/wp\/v2\/media?parent=6565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/csiag.eu\/da\/wp-json\/wp\/v2\/categories?post=6565"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/csiag.eu\/da\/wp-json\/wp\/v2\/tags?post=6565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}