{"id":6426,"date":"2022-05-01T10:25:50","date_gmt":"2022-05-01T09:25:50","guid":{"rendered":"https:\/\/idiolect.org.uk\/notes\/?p=6426"},"modified":"2025-08-12T10:51:06","modified_gmt":"2025-08-12T09:51:06","slug":"chromosteopsis-colophon","status":"publish","type":"post","link":"https:\/\/idiolect.org.uk\/notes\/2022\/05\/01\/chromosteopsis-colophon\/","title":{"rendered":"Chromosteopsis: colophon"},"content":{"rendered":"\n<p>Over at <a href=\"https:\/\/mindhacks.com\/2022\/05\/01\/chromostereopsis\/\">mindhacks.com, an introduction to chromosteopsis<\/a>. Here: how I made some of those images. Github repo: <a href=\"https:\/\/github.com\/tomstafford\/chromo\">chromo<\/a><\/p>\n\n\n\n<p>It turns out that you get the nice speckled pattern just by randomly colouring pixels with 0.3 probability. I thought you could probably combine with other depth cues (such as a texture gradient) to enhance the illusion, but didn&#8217;t get to this. <\/p>\n\n\n\n<p>I thought the effect might interact with motion and\/or eccentricity so I made a gif<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"369\" height=\"369\" data-attachment-id=\"6428\" data-permalink=\"https:\/\/idiolect.org.uk\/notes\/2022\/05\/01\/chromosteopsis-colophon\/fname\/\" data-orig-file=\"https:\/\/i0.wp.com\/idiolect.org.uk\/notes\/wp-content\/uploads\/2022\/05\/fname.gif?fit=369%2C369&amp;ssl=1\" data-orig-size=\"369,369\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"fname\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/idiolect.org.uk\/notes\/wp-content\/uploads\/2022\/05\/fname.gif?fit=300%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/idiolect.org.uk\/notes\/wp-content\/uploads\/2022\/05\/fname.gif?fit=369%2C369&amp;ssl=1\" tabindex=\"0\" role=\"button\" src=\"https:\/\/i0.wp.com\/idiolect.org.uk\/notes\/wp-content\/uploads\/2022\/05\/fname.gif?resize=369%2C369&#038;ssl=1\" alt=\"\" class=\"wp-image-6428\"\/><\/figure><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Over at mindhacks.com, an introduction to chromosteopsis. Here: how I made some of those images. Github repo: chromo It turns out that you get the nice speckled pattern just by randomly colouring pixels with 0.3 probability. I thought you could probably combine with other depth cues (such as a texture gradient) to enhance the illusion, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[9,4],"tags":[],"class_list":["post-6426","post","type-post","status-publish","format-standard","hentry","category-science","category-technical-notes"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5KQtW-1FE","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/idiolect.org.uk\/notes\/wp-json\/wp\/v2\/posts\/6426"}],"collection":[{"href":"https:\/\/idiolect.org.uk\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idiolect.org.uk\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idiolect.org.uk\/notes\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/idiolect.org.uk\/notes\/wp-json\/wp\/v2\/comments?post=6426"}],"version-history":[{"count":3,"href":"https:\/\/idiolect.org.uk\/notes\/wp-json\/wp\/v2\/posts\/6426\/revisions"}],"predecessor-version":[{"id":6434,"href":"https:\/\/idiolect.org.uk\/notes\/wp-json\/wp\/v2\/posts\/6426\/revisions\/6434"}],"wp:attachment":[{"href":"https:\/\/idiolect.org.uk\/notes\/wp-json\/wp\/v2\/media?parent=6426"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idiolect.org.uk\/notes\/wp-json\/wp\/v2\/categories?post=6426"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idiolect.org.uk\/notes\/wp-json\/wp\/v2\/tags?post=6426"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}