{"id":9005,"date":"2026-11-02T12:11:24","date_gmt":"2026-11-02T12:11:24","guid":{"rendered":"https:\/\/portaileduc.net\/website\/?p=9005"},"modified":"2026-11-02T12:19:42","modified_gmt":"2026-11-02T12:19:42","slug":"legendeur-annoter-et-legender-une-image-en-ligne","status":"publish","type":"post","link":"https:\/\/portaileduc.net\/website\/legendeur-annoter-et-legender-une-image-en-ligne\/","title":{"rendered":"L\u00e9gendeur : annoter et l\u00e9gender une image en ligne"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Le L\u00e9gendeur est une application en ligne, gratuite et libre, qui permet d&rsquo;annoter une image avec des fl\u00e8ches, des points num\u00e9rot\u00e9s et des l\u00e9gendes.<\/strong> Elle est d\u00e9velopp\u00e9e par Pierre-Yves Guillaume, IAN Biotechnologie, et h\u00e9berg\u00e9e sur La Forge des communs num\u00e9riques \u00e9ducatifs. L&rsquo;outil r\u00e9pond \u00e0 un besoin tr\u00e8s concret : pr\u00e9parer en quelques minutes un sch\u00e9ma \u00e0 l\u00e9gender, une photo de manipulation comment\u00e9e ou un document annot\u00e9 pour un cours, une \u00e9valuation ou une fiche de synth\u00e8se.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-6.png?ssl=1\"><img loading=\"lazy\" decoding=\"async\" width=\"1912\" height=\"795\" src=\"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-6.png?fit=1024%2C426&amp;ssl=1\" alt=\"Aper\u00e7u de l'application en ligne Le L\u00e9gendeur\" class=\"wp-image-9009\" srcset=\"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-6.png?w=1912&amp;ssl=1 1912w, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-6.png?resize=300%2C125&amp;ssl=1 300w, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-6.png?resize=767%2C319&amp;ssl=1 767w, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-6.png?resize=1024%2C426&amp;ssl=1 1024w, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-6.png?resize=1536%2C639&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 1290px) 100vw, 1290px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Comment fonctionne le L\u00e9gendeur ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le principe est simple : il suffit de charger une image, de cliquer sur l&rsquo;\u00e9l\u00e9ment \u00e0 d\u00e9signer, puis de saisir sa l\u00e9gende.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Images accept\u00e9es<\/strong> : PNG, JPG et WEBP ;<\/li>\n\n\n\n<li><strong>Rep\u00e8res<\/strong> : fl\u00e8ches ou points, avec une num\u00e9rotation continue ou qui recommence \u00e0 1 ;<\/li>\n\n\n\n<li><strong>Zones<\/strong> : trac\u00e9 de polygones par clics pour d\u00e9limiter une r\u00e9gion de l&rsquo;image ;<\/li>\n\n\n\n<li><strong>Mise en forme<\/strong> : couleurs, tailles, ombres et bulles r\u00e9glables ;<\/li>\n\n\n\n<li><strong>Confort<\/strong> : loupe pour viser les petits d\u00e9tails, annulation et suppression d&rsquo;une annotation en un clic.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Quels formats d&rsquo;export ?<\/h3>\n\n\n\n<div class=\"wp-block-group pe-encadre is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\">Le L\u00e9gendeur propose trois exports d&rsquo;image :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>l&rsquo;image originale<\/strong> ;<\/li>\n\n\n\n<li><strong>l&rsquo;image annot\u00e9e sans tableau<\/strong>, avec seulement les num\u00e9ros : id\u00e9ale pour un sch\u00e9ma muet \u00e0 compl\u00e9ter ;<\/li>\n\n\n\n<li><strong>l&rsquo;image annot\u00e9e avec son tableau de l\u00e9gende<\/strong>, qui reprend les textes saisis : pratique pour le corrig\u00e9 ou la synth\u00e8se.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Le travail peut aussi \u00eatre enregistr\u00e9 au format .json, pour le rouvrir et le modifier plus tard.<\/p>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Quel int\u00e9r\u00eat p\u00e9dagogique ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 partir d&rsquo;une seule image, l&rsquo;enseignant\u00b7e obtient \u00e0 la fois la version \u00e9l\u00e8ve (num\u00e9ros seuls) et la version corrig\u00e9e (avec l\u00e9gendes). Pens\u00e9 au d\u00e9part pour la biologie et les biotechnologies (cellule, organe, mat\u00e9riel de laboratoire), l&rsquo;outil convient \u00e0 toutes les disciplines : carte en g\u00e9ographie, \u0153uvre en \u00e9ducation artistique, machine ou pi\u00e8ce en cours technique, plante en agronomie.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les \u00e9l\u00e8ves peuvent aussi l&rsquo;utiliser eux-m\u00eames pour l\u00e9gender une photo prise pendant une exp\u00e9rience ou une sortie. Le code est publi\u00e9 sous licence GNU GPL v3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Un petit outil sobre et efficace, qui fait gagner un temps pr\u00e9cieux dans la pr\u00e9paration des supports illustr\u00e9s.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D\u00e9couvrir le L\u00e9gendeur :<\/strong><br><a href=\"https:\/\/pyg-biomicrobio.forge.apps.education.fr\/legendeur\/\">https:\/\/pyg-biomicrobio.forge.apps.education.fr\/legendeur\/<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00c0 voir aussi<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/portaileduc.net\/website\/chemix-schematiser-des-diagrammes-de-laboratoire-et-des-appareils-dexperimentation\/\">Chemix : dessiner des sch\u00e9mas de laboratoire en ligne<\/a> ;<\/li>\n\n\n\n<li><a href=\"https:\/\/portaileduc.net\/website\/diagrams-net-draw-io-creer-des-schemas-des-diagrammes-des-organigrammes\/\">Diagrams.net (Draw.io) : cr\u00e9er des sch\u00e9mas et des diagrammes<\/a> ;<\/li>\n\n\n\n<li><a href=\"https:\/\/portaileduc.net\/website\/outils-visuels-plus-de-700-ressources-pour-penser-apprendre-et-communiquer-autrement\/\">Outils Visuels : 700 ressources pour penser en images<\/a> ;<\/li>\n\n\n\n<li><a href=\"https:\/\/portaileduc.net\/website\/svtflix-reviser-les-sciences-en-ecoutant-des-podcasts\/\">SVTFlix : r\u00e9viser les sciences en \u00e9coutant des podcasts<\/a>.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Une application libre et gratuite pour ajouter fl\u00e8ches, num\u00e9ros et l\u00e9gendes sur une image, puis exporter un sch\u00e9ma muet et son corrig\u00e9.<\/p>\n","protected":false},"author":2,"featured_media":9009,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","jetpack_post_was_ever_published":false},"categories":[196,97],"tags":[275,282,289,304,317,319],"class_list":["post-9005","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-outils-tice","category-sciences-appliquees","tag-creation-de-contenus","tag-outil-en-ligne","tag-quiz-et-evaluation","tag-sciences-appliquees","tag-secondaire","tag-logiciel-libre"],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6aRPV-2lf","jetpack-related-posts":[{"id":9029,"url":"https:\/\/portaileduc.net\/website\/digiboard-tableau-blanc-collaboratif-gratuit\/","url_meta":{"origin":9005,"position":0},"title":"Digiboard : un tableau blanc collaboratif gratuit","author":"Maxime Duquesnoy","date":"2 novembre 2026","format":false,"excerpt":"Digiboard, de La Digitale, est un tableau blanc collaboratif libre et gratuit : dessin, formes, post-it, images et textes, avec un mode lecture seule et des droits d'\u00e9dition \u00e0 accorder aux \u00e9l\u00e8ves.","rel":"","context":"Dans &quot;Outils TICE&quot;","block_context":{"text":"Outils TICE","link":"https:\/\/portaileduc.net\/website\/category\/outils-pedagogiques\/outils-tice\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-16.png?fit=1200%2C344&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-16.png?fit=1200%2C344&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-16.png?fit=1200%2C344&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-16.png?fit=1200%2C344&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-16.png?fit=1200%2C344&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":9039,"url":"https:\/\/portaileduc.net\/website\/digidiagram-creer-des-diagrammes-simples\/","url_meta":{"origin":9005,"position":1},"title":"Digidiagram : cr\u00e9er des diagrammes simples","author":"Maxime Duquesnoy","date":"2 novembre 2026","format":false,"excerpt":"Digidiagram, de La Digitale, permet de cr\u00e9er gratuitement des diagrammes simples avec des formes, des fl\u00e8ches et des couleurs : organigrammes, sch\u00e9mas, cycles. Libre et sans compte.","rel":"","context":"Dans &quot;Outils TICE&quot;","block_context":{"text":"Outils TICE","link":"https:\/\/portaileduc.net\/website\/category\/outils-pedagogiques\/outils-tice\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-20.png?fit=1200%2C547&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-20.png?fit=1200%2C547&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-20.png?fit=1200%2C547&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-20.png?fit=1200%2C547&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/11\/image-20.png?fit=1200%2C547&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":7243,"url":"https:\/\/portaileduc.net\/website\/human-atlas-un-atlas-anatomique-3d-gratuit-et-open-source\/","url_meta":{"origin":9005,"position":2},"title":"Human Atlas : un atlas anatomique 3D gratuit et libre","author":"Maxime Duquesnoy","date":"29 octobre 2026","format":false,"excerpt":"Une application web gratuite et open source pour explorer le corps humain en 3D, sans compte ni installation : os, muscles, organes, vue \u00e9clat\u00e9e, utilisable sur t\u00e9l\u00e9phone.","rel":"","context":"Dans &quot;Outils TICE&quot;","block_context":{"text":"Outils TICE","link":"https:\/\/portaileduc.net\/website\/category\/outils-pedagogiques\/outils-tice\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/image-124.png?fit=1200%2C760&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/image-124.png?fit=1200%2C760&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/image-124.png?fit=1200%2C760&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/image-124.png?fit=1200%2C760&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/image-124.png?fit=1200%2C760&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":7741,"url":"https:\/\/portaileduc.net\/website\/verbicrucix-creer-des-grilles-de-mots-fleches-personnalisees-pour-ses-eleves\/","url_meta":{"origin":9005,"position":3},"title":"Verbicrucix : cr\u00e9er des grilles de mots fl\u00e9ch\u00e9s","author":"Maxime Duquesnoy","date":"23 octobre 2026","format":false,"excerpt":"Un g\u00e9n\u00e9rateur gratuit de mots fl\u00e9ch\u00e9s, sans inscription, pour cr\u00e9er des grilles \u00e0 partir de ses propres mots et d\u00e9finitions.","rel":"","context":"Dans &quot;Outils TICE&quot;","block_context":{"text":"Outils TICE","link":"https:\/\/portaileduc.net\/website\/category\/outils-pedagogiques\/outils-tice\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/Image20.png?fit=1200%2C703&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/Image20.png?fit=1200%2C703&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/Image20.png?fit=1200%2C703&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/Image20.png?fit=1200%2C703&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/portaileduc.net\/website\/wp-content\/uploads\/2026\/10\/Image20.png?fit=1200%2C703&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":9038,"url":"https:\/\/portaileduc.net\/website\/digicard-compositions-graphiques-simples\/","url_meta":{"origin":9005,"position":4},"title":"Digicard : cr\u00e9er des visuels simples en ligne","author":"Maxime Duquesnoy","date":"2 novembre 2026","format":false,"excerpt":"Digicard, de La Digitale, permet de cr\u00e9er gratuitement des cartes et compositions graphiques simples : textes, formes, bulles, images de fond, puis export en image. 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