{"version":"1.0","provider_name":"Les aventures de Jos\u00e9 ...","provider_url":"https:\/\/joselinformatique.obip.fr","author_name":"pierre","author_url":"https:\/\/joselinformatique.obip.fr\/index.php\/author\/pierre\/","title":"Le PNG - Les aventures de Jos\u00e9 ...","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"BhcbCiTOMx\"><a href=\"https:\/\/joselinformatique.obip.fr\/index.php\/2025\/08\/10\/le-png\/\">Le PNG<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/joselinformatique.obip.fr\/index.php\/2025\/08\/10\/le-png\/embed\/#?secret=BhcbCiTOMx\" width=\"600\" height=\"338\" title=\"\u00ab\u00a0Le PNG\u00a0\u00bb &#8212; Les aventures de Jos\u00e9 ...\" data-secret=\"BhcbCiTOMx\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/joselinformatique.obip.fr\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/joselinformatique.obip.fr\/wp-content\/uploads\/2025\/07\/admin-ajax.jpeg","thumbnail_width":600,"thumbnail_height":450,"description":"Il y a quelques semaines, je me suis int\u00e9ress\u00e9 \u00e0 un algorithme de compression d\u2019image qui a r\u00e9volutionn\u00e9 internet : le JPEG. Si le taux de compression est impressionnant et met en jeu des algorithmes g\u00e9niaux et des biais de la vision humaine, il pr\u00e9sente l\u2019inconv\u00e9nient de d\u00e9grader l\u2019image et ne pr\u00e9sente pas de canal [&hellip;]"}