{"id":32013,"date":"2015-11-17T15:24:04","date_gmt":"2015-11-17T15:24:04","guid":{"rendered":"https:\/\/www.solopress.com\/blog\/?p=32013"},"modified":"2019-06-20T21:06:45","modified_gmt":"2019-06-20T20:06:45","slug":"guida-rapida-alla-risoluzione-delle-immagini","status":"publish","type":"post","link":"https:\/\/www.solopress.com\/blog\/it\/tutorials\/a-quick-guide-to-image-resolution\/","title":{"rendered":"Guida rapida alla risoluzione delle immagini"},"content":{"rendered":"<div id=\"bsf_rt_marker\"><\/div><p><!--more--><\/p>\n<p>Per chi \u00e8 esperto, DPI o \"Dots Per Inch\" \u00e8 uno dei concetti pi\u00f9 semplici del design. Tuttavia, per chi \u00e8 alle prime armi nel mondo del design, pu\u00f2 creare un po' di confusione. Ecco una breve descrizione per semplificare la vita.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32016\" src=\"https:\/\/www.solopress.com\/blog\/wp-content\/uploads\/2015\/11\/design-image-resolution.jpg\" alt=\"risoluzione dell&#039;immagine di progetto\" width=\"600\" height=\"250\" \/><\/p>\n<p>Per chiarire subito le cose, aprire un'immagine in Photoshop e regolare le impostazioni di risoluzione a 300 dpi non migliorer\u00e0 la qualit\u00e0 dell'immagine. In generale, maggiore \u00e8 il DPI di un'immagine, maggiore \u00e8 la quantit\u00e0 di informazioni presenti. Ci\u00f2 significa che i dettagli catturati sono maggiori e l'immagine apparir\u00e0 molto pi\u00f9 chiara rispetto a un'immagine con una risoluzione inferiore. Ex grafico e giornalista tecnologico, <a href=\"http:\/\/chrisphin.com\/\">Christopher Phin<\/a> lo spiega perfettamente.<\/p>\n<p><em>\"Se si costruisse una foto su una parete usando piastrelle colorate di un pollice quadrato ciascuna, l'immagine avrebbe una risoluzione di 1dpi e bisognerebbe allontanarsi parecchio per vedere l'immagine liscia e coerente. Se invece si usassero piastrelle di mezzo pollice per lato, si otterrebbe una risoluzione di 2dpi e non ci si dovrebbe allontanare cos\u00ec tanto prima che l'immagine smetta di apparire a blocchi\".<\/em><\/p>\n<p>L'elemento che spesso viene dimenticato \u00e8 il problema della dimensione dell'immagine determinata dalla dimensione dei pixel. Ad esempio, se si imposta un'immagine in formato A4 a 72 dpi e poi la si modifica a 300 dpi, l'immagine si ridurr\u00e0 notevolmente di dimensioni. I due elementi dell'immagine, il numero di punti per pollice e la dimensione complessiva, dipendono interamente l'uno dall'altro. Immaginando che un'immagine sia disegnata in una certa dimensione, aumentando i dpi si aumenta il numero di punti per pollice; l'immagine deve quindi diventare pi\u00f9 piccola perch\u00e9 ci sono pi\u00f9 punti da inserire in ogni pollice. Il numero complessivo di pixel nell'originale \u00e8 finito e non cambia.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32017\" src=\"https:\/\/www.solopress.com\/blog\/wp-content\/uploads\/2015\/11\/shutterstock_282680441.jpg\" alt=\"risoluzione dell&#039;immagine di progetto\" width=\"600\" height=\"400\" \/><\/p>\n<p>Mentre un'immagine a 72 dpi va benissimo per l'uso sul web, per ottenere la migliore qualit\u00e0 dai prodotti stampati \u00e8 consigliabile progettare a 300 dpi (senza dimenticare il colore CMYK).<\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":23,"featured_media":32015,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[555],"tags":[],"class_list":{"0":"post-32013","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-tutorials"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A Quick Guide To Image Resolution | Solopress<\/title>\n<meta name=\"description\" content=\"Easy for those in the know, difficult for newcomers to design. Here is a quick run down to make life easier when supplying your images for print.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.solopress.com\/blog\/it\/tutorial\/guida-rapida-alla-risoluzione-delle-immagini\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A Quick Guide To Image Resolution | Solopress\" \/>\n<meta property=\"og:description\" content=\"Easy for those in the know, difficult for newcomers to design. 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