{"id":105694,"date":"2022-11-24T09:36:49","date_gmt":"2022-11-24T07:36:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/predstavlena-sistema-sinteza-izobrazhenij-stable-diffusion-2-0"},"modified":"2022-11-24T09:36:49","modified_gmt":"2022-11-24T07:36:54","slug":"predstavlena-sistema-sinteza-izobrazhenij-stable-diffusion-2-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/predstavlena-sistema-sinteza-izobrazhenij-stable-diffusion-2-0","title":{"rendered":"Presentato il sistema di sintesi delle immagini Stable Diffusion 2.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>L'azienda Stability AI ha pubblicato la seconda edizione del sistema di apprendimento automatico Stable Diffusion, in grado di sintetizzare e modificare immagini basate su un modello proposto o una descrizione testuale in linguaggio naturale. Il codice degli strumenti per l'addestramento della rete neurale e la generazione di immagini \u00e8 scritto in Python utilizzando il framework PyTorch ed \u00e8 pubblicato sotto licenza MIT. I modelli gi\u00e0 addestrati sono aperti sotto una licenza permissiva Creative ML OpenRAIL-M, che consente l'uso a scopi commerciali. \u00c8 inoltre disponibile un generatore di immagini online in demo.      <\/p>\n<p>Miglioramenti chiave nella nuova edizione di Stable Diffusion:  <\/p>\n<ul>\n<li class=\"l\"> \u00c8 stata creata una nuova modello di sintesi delle immagini basata su descrizioni testuali \u2014 SD2.0-v, che supporta la generazione di immagini con risoluzione 768\u00d7768. Il nuovo modello \u00e8 stato addestrato utilizzando la collezione LAION-5B, che include 5,85 miliardi di immagini con descrizioni testuali. Il modello utilizza lo stesso set di parametri del modello Stable Diffusion 1.5, ma si distingue per il passaggio a un codificatore OpenCLIP-ViT\/H di fondamentale importanza, che ha consentito di migliorare significativamente la qualit\u00e0 delle immagini risultanti.       <center><img decoding=\"async\" alt=\"Presentato il sistema di sintesi delle immagini Stable Diffusion 2.0\" src=\"\/wp-content\/uploads\/2022\/11\/376594e9f459cfa3a235f732a3e948ea.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> \u00c8 stata preparata una versione semplificata di SD2.0-base, addestrata su immagini 256\u00d7256 usando un classico modello di previsione del rumore e che supporta la generazione di immagini con risoluzione 512\u00d7512.    <center><img decoding=\"async\" alt=\"Presentato il sistema di sintesi delle immagini Stable Diffusion 2.0\" src=\"\/wp-content\/uploads\/2022\/11\/ffa444ca643e00226e0f771c30c65fb1.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> \u00c8 stata fornita la possibilit\u00e0 di utilizzare la tecnologia di super risoluzione (Super Resolution) per aumentare la risoluzione dell'immagine originale senza compromettere la qualit\u00e0, utilizzando algoritmi di scaling spaziale e ricostruzione dei dettagli. Il modello di elaborazione delle immagini fornito (SD20-upscaler) supporta un aumento della scala di quattro volte, consentendo di generare immagini con risoluzione 2048\u00d72048.    <center><img decoding=\"async\" alt=\"Presentato il sistema di sintesi delle immagini Stable Diffusion 2.0\" src=\"\/wp-content\/uploads\/2022\/11\/a915c3fd0eb074d8e5597c2706251166.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> \u00c8 stato proposto il modello SD2.0-depth2img, che tiene conto della profondit\u00e0 e della disposizione spaziale degli oggetti. Per la stima della profondit\u00e0 monoculare viene utilizzato il sistema MiDaS. Il modello consente di sintetizzare nuove immagini utilizzando un'altra immagine come modello, che pu\u00f2 differire radicalmente dall'originale, ma mantenendo la composizione e la profondit\u00e0 complessive. Ad esempio, \u00e8 possibile utilizzare la posa di una persona in una foto per creare un altro personaggio nella stessa posa.    <center><img decoding=\"async\" alt=\"Presentato il sistema di sintesi delle immagini Stable Diffusion 2.0\" src=\"\/wp-content\/uploads\/2022\/11\/41f7f241529c5834cd228286a921d640.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>  <center><img decoding=\"async\" alt=\"Presentato il sistema di sintesi delle immagini Stable Diffusion 2.0\" src=\"\/wp-content\/uploads\/2022\/11\/9ebecbc110c12e6fa018f7d397d65054.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>    <center><img decoding=\"async\" alt=\"Presentato il sistema di sintesi delle immagini Stable Diffusion 2.0\" src=\"\/wp-content\/uploads\/2022\/11\/7680df01fe2a44a8c6d21002e784e01d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> \u00c8 stata aggiornata la modello per la modifica delle immagini \u2014 SD 2.0-inpainting, che consente di sostituire e modificare parti dell'immagine tramite suggerimenti testuali.    <center><img decoding=\"async\" alt=\"Presentato il sistema di sintesi delle immagini Stable Diffusion 2.0\" src=\"\/wp-content\/uploads\/2022\/11\/38291c883b211d77bb924bbb4d740829.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center>\n<li class=\"l\"> Ottimizzazione dei modelli per l'uso su sistemi comuni con una sola GPU.      <\/ul>\n<p>        <center><img decoding=\"async\" alt=\"Presentato il sistema di sintesi delle immagini Stable Diffusion 2.0\" src=\"\/wp-content\/uploads\/2022\/11\/b80b3978daa9b333b5a637c0fa544e76.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=58184\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Stability AI \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0432\u0442\u043e\u0440\u0443\u044e \u0440\u0435\u0434\u0430\u043a\u0446\u0438\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043c\u0430\u0448\u0438\u043d\u043d\u043e\u0433\u043e \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u044f Stable Diffusion, \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0439 \u0441\u0438\u043d\u0442\u0435\u0437\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0438 \u0438\u0437\u043c\u0435\u043d\u044f\u0442\u044c \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u043e\u0433\u043e \u0448\u0430\u0431\u043b\u043e\u043d\u0430 \u0438\u043b\u0438 \u0442\u0435\u043a\u0441\u0442\u043e\u0432\u043e\u0433\u043e \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u044f \u043d\u0430 \u0435\u0441\u0442\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u043c \u044f\u0437\u044b\u043a\u0435. \u041a\u043e\u0434 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u043e\u0432 \u0434\u043b\u044f \u043e\u0431\u0443\u0447\u0435\u043d\u0438\u044f \u043d\u0435\u0439\u0440\u043e\u043d\u043d\u043e\u0439 \u0441\u0435\u0442\u0438 \u0438 \u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u0438 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0439 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Python \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a\u0430 PyTorch \u0438 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 MIT. \u0423\u0436\u0435 \u043e\u0431\u0443\u0447\u0435\u043d\u043d\u044b\u0435 \u043c\u043e\u0434\u0435\u043b\u0438 \u043e\u0442\u043a\u0440\u044b\u0442\u044b \u043f\u043e\u0434 \u043f\u0435\u0440\u043c\u0438\u0441\u0441\u0438\u0432\u043d\u043e\u0439 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":105695,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-105694","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Stability AI \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0432\u0442\u043e\u0440\u0443\u044e \u0440\u0435\u0434\u0430\u043a\u0446\u0438\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043c\u0430\u0448\u0438\u043d\u043d\u043e\u0433\u043e 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