{"id":3467,"date":"2011-06-18T16:51:36","date_gmt":"2011-06-18T14:51:36","guid":{"rendered":"http:\/\/neuropoolwp-com.beast-hosting.com\/2011\/06\/18\/schwarz-weiss-illusion\/"},"modified":"2011-06-18T16:51:36","modified_gmt":"2011-06-18T14:51:36","slug":"schwarz-weiss-illusion","status":"publish","type":"post","link":"https:\/\/www.neuropool.com\/en\/reports\/surprise-of-the-day\/schwarz-weiss-illusion.html","title":{"rendered":"Black and white illusion"},"content":{"rendered":"<p style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 6px; margin-left: 0px; line-height: 18px; font: normal normal normal 12px\/normal Helvetica;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-3466\" src=\"https:\/\/www.neuropool.com\/wp-content\/uploads\/2011\/06\/Illusion-Whites.jpg\" alt=\"Black and white illusion\" style=\"display: block; margin-left: auto; margin-right: auto;\" width=\"449\" height=\"319\" srcset=\"https:\/\/www.neuropool.com\/wp-content\/uploads\/2011\/06\/Illusion-Whites.jpg 449w, https:\/\/www.neuropool.com\/wp-content\/uploads\/2011\/06\/Illusion-Whites-300x213.jpg 300w\" sizes=\"(max-width: 449px) 100vw, 449px\" \/><\/p>\n<p style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 6px; margin-left: 0px; line-height: 18px; font: normal normal normal 12px\/normal Helvetica;\"><span class=\"Apple-style-span\" style=\"font-size: 13px;\">This optical illusion illustrates that the same luminance can be perceived with different brightness depending on the luminance of the surrounding objects. The grey rectangles shown all have the same luminance. The rectangles surrounded by black stripes appear brighter than those between the white stripes. It is important to note that this effect is the opposite of what is expected based on the simple physical explanation of simultaneous contrast. With simultaneous contrast, the rectangles whose long sides border the black fields should appear lighter.&nbsp;<\/span><\/p>\n<p style=\"margin-top: 0px; margin-right: 0px; margin-bottom: 6px; margin-left: 0px; line-height: 19px; font: normal normal normal 13px\/normal Helvetica;\">You can see that the grey rectangles are the same colour if you look at the picture with a blurred view, i.e. \"through the picture\", so to speak. The grey fields move until they are directly next to each other.&nbsp;&nbsp; &nbsp;&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Diese optische T\u00e4uschung veranschaulicht, dass dieselbe Leuchtdichte je nach der Leuchtdichte ihrer umliegenden Objekte unterschiedlich hell wahrgenommen werden kann. Die dargestellten grauen Rechtecke besitzen alle die gleiche Leuchtdichte. Die Rechtecke, die von schwarzen Streifen umgeben sind, erscheinen heller als die, die sich zwischen den wei\u00dfen Streifen befinden. Dabei ist es wichtig, festzustellen, dass diese Wirkung [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3466,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_thumbnail_id":["3466"],"_fgj2wp_old_id":["2835"],"rank_math_analytic_object_id":["1539"],"rank_math_focus_keyword":["schwarz-wei\u00df-illusion"],"rank_math_internal_links_processed":["1"],"_trp_automatically_translated_slug_en_GB":["black-and-white-illusion"]},"categories":[10],"tags":[],"class_list":["post-3467","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-surprise-of-the-day","entry","has-media"],"_links":{"self":[{"href":"https:\/\/www.neuropool.com\/en\/wp-json\/wp\/v2\/posts\/3467","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.neuropool.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.neuropool.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.neuropool.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.neuropool.com\/en\/wp-json\/wp\/v2\/comments?post=3467"}],"version-history":[{"count":0,"href":"https:\/\/www.neuropool.com\/en\/wp-json\/wp\/v2\/posts\/3467\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.neuropool.com\/en\/wp-json\/wp\/v2\/media\/3466"}],"wp:attachment":[{"href":"https:\/\/www.neuropool.com\/en\/wp-json\/wp\/v2\/media?parent=3467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.neuropool.com\/en\/wp-json\/wp\/v2\/categories?post=3467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.neuropool.com\/en\/wp-json\/wp\/v2\/tags?post=3467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}