{"version": "1.0", "type": "rich", "title": "GANCats", "author_name": "kontextmaschine", "author_url": "https://kontextmaschine.com", "provider_name": "kontextmaschine", "provider_url": "https://kontextmaschine.com", "url": "https://kontextmaschine.com/post/182650721543/", "html": "<p><a href=\"http://aiweirdness.com/post/182633984547/gancats\" class=\"tumblr_blog\" target=\"_blank\">lewisandquark</a>:</p><blockquote>\n<p>A new paper from NVIDIA recently made waves with its photorealistic human portraits. Called <a href=\"https://github.com/NVlabs/stylegan\" target=\"_blank\">StyleGAN</a>, the algorithm had a new training dataset pulled from Flickr, with a wider range of ages and skin tones than in other portrait datasets. (If your pictures are on Flickr with the right license, your picture might have been used to train StyleGAN). Thanks to that big dataset, a new method of generating images, and a staggering amount of computer power, its human faces are indeed impressive. But, to prove that their method doesn\u2019t just work for human faces, they also generated bedrooms, and cars\u2026 and cats.</p>\n<p>The cats are so much fun.</p>\n<figure data-orig-width=\"2133\" data-orig-height=\"2133\" class=\"tmblr-full\"><img src=\"/media/tumblr_inline_pmhjlskPUB1rl9zu7_540_2eb021721d4d.png\" alt=\"image\" data-orig-width=\"2133\" data-orig-height=\"2133\"/></figure><p>In many ways, generating cats is more of a challenge than generating human faces, since cats can be in so many different poses. It has an easier time generating texture than figuring out where all the legs and tails go.</p>\n<figure data-orig-width=\"2133\" data-orig-height=\"2133\" class=\"tmblr-full\"><img src=\"/media/tumblr_inline_pmhk70vPum1rl9zu7_540_95d0b686ce9d.png\" alt=\"image\" data-orig-width=\"2133\" data-orig-height=\"2133\"/></figure><p>I\u2019ve noticed that for some reason, whenever it generates kittens, one is normal and the rest are haunted. There must be something difficult about pictures containing multiple subjects.</p>\n<figure data-orig-width=\"2124\" data-orig-height=\"1067\" class=\"tmblr-full\"><img src=\"/media/tumblr_inline_pmhkcpB1sW1rl9zu7_540_502e5429168d.png\" alt=\"image\" data-orig-width=\"2124\" data-orig-height=\"1067\"/></figure><p>Its humans are even worse, proving that the difference between it and the version that was impressively good at generating human faces was all in the training data.</p>\n<figure class=\"tmblr-full\" data-orig-height=\"1067\" data-orig-width=\"2133\"><img src=\"/media/tumblr_inline_pmkc27JYUe1rl9zu7_540_45313c19a7f3.png\" data-orig-height=\"1067\" data-orig-width=\"2133\"/></figure><p>Speaking of training data, StyleGAN\u2019s training data was something called LSUN Cat. Evidently, LSUN Cat\u2019s images were sourced from the internet, because when it generated some cats, it added meme text to them, assuming that white blocky lettering is just part of what\u00a0\u201ccat\u201d is.</p>\n<figure class=\"tmblr-full\" data-orig-height=\"1067\" data-orig-width=\"2133\"><img src=\"/media/tumblr_inline_pmkcnqzHY11rl9zu7_540_3a8fa888ec54.png\" data-orig-height=\"1067\" data-orig-width=\"2133\"/></figure><p>It also attempted to generate cats with the Shutterstock watermark, although actually spelling\u00a0\u201cShutterstock\u201d proved tricky for it.</p>\n<figure class=\"tmblr-full\" data-orig-height=\"1067\" data-orig-width=\"2133\"><img src=\"/media/tumblr_inline_pmkcvs0gcU1rl9zu7_540_09c9ced3e56a.png\" data-orig-height=\"1067\" data-orig-width=\"2133\"/></figure><p>Another delightful thing about its internet-derived dataset: quite a lot of the cats look an awful lot like Grumpy Cat. She\u2019s only one cat, but she had a profound impact on what StyleGAN thinks cats look like.</p>\n<figure class=\"tmblr-full\" data-orig-height=\"2133\" data-orig-width=\"2133\"><img src=\"/media/tumblr_inline_pmkd91aRtr1rl9zu7_540_8612bb60d83b.png\" data-orig-height=\"2133\" data-orig-width=\"2133\"/></figure><p>There are far more amazing cats than would fit in this blog post. In this bonus material, I\u2019ve collected a few more of my favorites, including several with meme text, perfect for your internet communication needs. You can get them by <a href=\"https://janelleshane.activehosted.com/f/153\" target=\"_blank\">entering your email here</a>.</p>\n<p>You can look through 100,000 example cats, and generate your own, <a href=\"https://github.com/NVlabs/stylegan\" target=\"_blank\">here</a>.</p>\n</blockquote>", "thumbnail_url": "https://kontextmaschine.com/media/tumblr_inline_pmhjlskPUB1rl9zu7_540_2eb021721d4d.png", "thumbnail_width": 540, "thumbnail_height": 540}