{"id":90649,"date":"2026-11-08T16:00:00","date_gmt":"2026-11-08T13:00:00","guid":{"rendered":"https:\/\/www.indir.com\/haber\/?p=90649"},"modified":"2026-11-06T14:54:59","modified_gmt":"2026-11-06T11:54:59","slug":"qr-kod-koselerindeki-3-kare-ne-ise-yarar","status":"publish","type":"post","link":"https:\/\/www.indir.com\/haber\/qr-kod-koselerindeki-3-kare-ne-ise-yarar\/","title":{"rendered":"QR Kodun K\u00f6\u015fesindeki 3 Kare Ne \u0130\u015fe Yarar?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Restoran men\u00fcs\u00fcnden kargo etiketine, u\u00e7ak biletinden \u00f6deme ekran\u0131na kadar her yerde kar\u015f\u0131m\u0131za \u00e7\u0131kan QR kod, ilk bak\u0131\u015fta rastgele da\u011f\u0131lm\u0131\u015f siyah beyaz noktalardan olu\u015fuyor gibi g\u00f6r\u00fcn\u00fcr. Ama dikkatli bak\u0131nca \u00fc\u00e7 k\u00f6\u015fede hep ayn\u0131 b\u00fcy\u00fck kareyi g\u00f6r\u00fcrs\u00fcn\u00fcz. Bu karelerin s\u00fcs olmad\u0131\u011f\u0131n\u0131, kodun h\u0131zl\u0131 okunmas\u0131n\u0131n s\u0131rr\u0131 oldu\u011funu biliyor muydunuz?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">QR kod nas\u0131l ortaya \u00e7\u0131kt\u0131?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">QR kod, 1994 y\u0131l\u0131nda Japon DENSO WAVE \u015firketinde Masahiro Hara ve iki ki\u015filik ekibi taraf\u0131ndan geli\u015ftirildi. Ama\u00e7, yaln\u0131zca 20 karakter civar\u0131nda bilgi ta\u015f\u0131yabilen barkodlar\u0131n yerine, \u00e7ok daha fazla bilgi saklayabilen ve h\u0131zl\u0131 okunabilen bir kod \u00fcretmekti. Ad\u0131ndaki &#8220;QR&#8221; da \u0130ngilizce &#8220;quick response&#8221; yani h\u0131zl\u0131 yan\u0131t kelimelerinden geliyor. \u015eirket patent hakk\u0131n\u0131 kullanmayaca\u011f\u0131n\u0131 a\u00e7\u0131klad\u0131\u011f\u0131 i\u00e7in kod herkes taraf\u0131ndan \u00fccretsiz kullan\u0131labildi ve d\u00fcnyaya yay\u0131ld\u0131.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">QR kod k\u00f6\u015felerindeki 3 kare ne i\u015fe yarar?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bu karelerin ad\u0131 konum alg\u0131lama i\u015fareti. Okuyucu ya da telefon kameras\u0131 \u00f6nce bu \u00fc\u00e7 kareyi bulur. B\u00f6ylece kodun nerede ba\u015flad\u0131\u011f\u0131n\u0131, ne kadar b\u00fcy\u00fck oldu\u011funu ve hangi y\u00f6ne d\u00f6nd\u00fc\u011f\u00fcn\u00fc anlar. \u00dc\u00e7 k\u00f6\u015fede kare oldu\u011fu, d\u00f6rd\u00fcnc\u00fcde olmad\u0131\u011f\u0131 i\u00e7in kodun y\u00f6n\u00fc her zaman belli olur. Bu sayede QR kodu ters, yan ya da e\u011fik tutsan\u0131z bile 360 derecenin her a\u00e7\u0131s\u0131ndan okunabilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130\u015fin ilgin\u00e7 yan\u0131, karelerin tasar\u0131m\u0131 tesad\u00fcf de\u011fil. DENSO WAVE&#8217;in anlatt\u0131\u011f\u0131na g\u00f6re ekip, dergi, el ilan\u0131 ve karton kutu gibi bas\u0131l\u0131 malzemelerde siyah ve beyaz alanlar\u0131n oranlar\u0131n\u0131 g\u00fcnlerce inceledi. Sonunda bask\u0131larda en az rastlanan oran\u0131 buldu: 1:1:3:1:1. Konum karelerindeki siyah ve beyaz katmanlar bu orana g\u00f6re \u00e7izildi. B\u00f6ylece okuyucunun \u00e7evredeki ba\u015fka bir deseni yanl\u0131\u015fl\u0131kla QR kod sanma ihtimali azald\u0131. Bu y\u00f6ntem kodun di\u011fer iki boyutlu kodlara g\u00f6re 10 kat daha h\u0131zl\u0131 okunmas\u0131n\u0131 sa\u011flad\u0131.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/www.indir.com\/haber\/wp-content\/uploads\/2026\/11\/qr-kod-yapisi-konum-isaretleri.webp\" alt=\"QR kod k\u00f6\u015felerindeki 3 kare: konum ve hizalama i\u015faretleri \u015femas\u0131\" class=\"wp-image-90640\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Daha b\u00fcy\u00fck kodlarda sa\u011f alt k\u00f6\u015feye yak\u0131n k\u00fc\u00e7\u00fck bir kare daha g\u00f6r\u00fcrs\u00fcn\u00fcz. Buna hizalama i\u015fareti denir ve kod kavisli bir y\u00fczeye bas\u0131ld\u0131\u011f\u0131nda ya da e\u011fik a\u00e7\u0131dan okutuldu\u011funda g\u00f6r\u00fcnt\u00fcdeki bozulmay\u0131 d\u00fczeltmeye yard\u0131m eder.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Y\u0131rt\u0131k QR kod neden yine de okunuyor?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">QR kodun bir di\u011fer s\u00fcper g\u00fcc\u00fc hata d\u00fczeltme. Koda, m\u00fczik CD&#8217;lerinde ve uzay sondalar\u0131n\u0131n ileti\u015fiminde de kullan\u0131lan Reed-Solomon adl\u0131 matematiksel bir y\u00f6ntemle ek veri eklenir. B\u00f6ylece kodun bir k\u0131sm\u0131 kirlense ya da y\u0131rt\u0131lsa bile kalan par\u00e7adan bilgi yeniden hesaplanabilir. D\u00f6rt d\u00fczey vard\u0131r:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L: verinin yakla\u015f\u0131k y\u00fczde 7&#8217;si kurtar\u0131labilir,<\/li>\n\n<li>M: yakla\u015f\u0131k y\u00fczde 15 (en s\u0131k kullan\u0131lan d\u00fczey),<\/li>\n\n<li>Q: yakla\u015f\u0131k y\u00fczde 25,<\/li>\n\n<li>H: yakla\u015f\u0131k y\u00fczde 30.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ortas\u0131nda logo bulunan QR kodlar\u0131n \u00e7al\u0131\u015fmas\u0131n\u0131n sebebi de bu: logo, hata d\u00fczeltmenin tolere edebildi\u011fi alan\u0131 kapat\u0131yor. Ancak \u00fc\u00e7 konum karesi kapat\u0131l\u0131rsa kod genellikle okunamaz.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bu kadar kolay okunmas\u0131 doland\u0131r\u0131c\u0131lar i\u00e7in de f\u0131rsat yarat\u0131yor. Bu y\u00fczden <a href=\"https:\/\/www.indir.com\/haber\/okuturken-dikkat-sahte-qr-kod-anlamanin-yollari\/\">sahte QR kodlar\u0131 anlaman\u0131n yollar\u0131n\u0131<\/a> bilmekte fayda var. Hesaplar\u0131n\u0131z\u0131 korumak i\u00e7in <a href=\"https:\/\/www.indir.com\/haber\/2fa-nedir-hesap-guvenligi-icin-neden-sart\/\">iki ad\u0131ml\u0131 do\u011frulaman\u0131n neden \u015fart oldu\u011funu<\/a> da okuyabilirsiniz. QR kodun hikayesi <a href=\"https:\/\/www.qrcode.com\/en\/history\/\" target=\"_blank\" rel=\"noopener\">DENSO WAVE&#8217;in resmi sitesinde<\/a> ayr\u0131nt\u0131l\u0131 olarak anlat\u0131l\u0131yor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">S\u0131k\u00e7a Sorulan Sorular<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">QR kod k\u00f6\u015felerindeki kareler ne i\u015fe yarar?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Okuyucunun kodu bulmas\u0131n\u0131, boyutunu ve y\u00f6n\u00fcn\u00fc belirlemesini sa\u011flar. Bu sayede kod her a\u00e7\u0131dan h\u0131zl\u0131ca okunur.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">QR kodun bir k\u0131sm\u0131 silinirse \u00e7al\u0131\u015f\u0131r m\u0131?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Se\u00e7ilen hata d\u00fczeltme d\u00fczeyine g\u00f6re verinin y\u00fczde 7 ile 30&#8217;u aras\u0131ndaki bir k\u0131s\u0131m kurtar\u0131labilir. Konum kareleri zarar g\u00f6r\u00fcrse okuma genellikle ba\u015far\u0131s\u0131z olur.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">QR kodu kim icat etti?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">QR kod, 1994&#8217;te Japon DENSO WAVE \u015firketinde Masahiro Hara liderli\u011findeki ekip taraf\u0131ndan geli\u015ftirildi.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Restoran men\u00fcs\u00fcnden kargo etiketine, u\u00e7ak biletinden \u00f6deme ekran\u0131na kadar her yerde kar\u015f\u0131m\u0131za \u00e7\u0131kan QR kod, ilk bak\u0131\u015fta rastgele da\u011f\u0131lm\u0131\u015f siyah beyaz noktalardan olu\u015fuyor gibi g\u00f6r\u00fcn\u00fcr. Ama dikkatli bak\u0131nca \u00fc\u00e7 k\u00f6\u015fede hep ayn\u0131 b\u00fcy\u00fck kareyi g\u00f6r\u00fcrs\u00fcn\u00fcz. Bu karelerin s\u00fcs olmad\u0131\u011f\u0131n\u0131, kodun h\u0131zl\u0131 okunmas\u0131n\u0131n s\u0131rr\u0131 oldu\u011funu biliyor muydunuz? QR kod nas\u0131l ortaya \u00e7\u0131kt\u0131? QR kod, 1994 y\u0131l\u0131nda [&hellip;]<\/p>\n","protected":false},"author":100,"featured_media":90639,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46,1],"tags":[],"class_list":["post-90649","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mobil","category-teknoloji"],"_links":{"self":[{"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/posts\/90649","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/users\/100"}],"replies":[{"embeddable":true,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/comments?post=90649"}],"version-history":[{"count":1,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/posts\/90649\/revisions"}],"predecessor-version":[{"id":90655,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/posts\/90649\/revisions\/90655"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/media\/90639"}],"wp:attachment":[{"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/media?parent=90649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/categories?post=90649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/tags?post=90649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}