{"id":1376,"date":"2011-08-15T16:00:17","date_gmt":"2011-08-15T23:00:17","guid":{"rendered":"https:\/\/www.reenigne.org\/blog\/?p=1376"},"modified":"2011-08-10T11:36:20","modified_gmt":"2011-08-10T18:36:20","slug":"perceptual-colour-space-update","status":"publish","type":"post","link":"https:\/\/www.reenigne.org\/blog\/perceptual-colour-space-update\/","title":{"rendered":"Perceptual colour space update"},"content":{"rendered":"

Last year, I wrote about some code I had written to find maximally distributed sets of colours<\/a> in perceptual colour space. I was having some problems with the code at the time, but since then I have got it working. I fixed it by only repelling each particle from the nearest one to it - then particles quickly settle into the points where they are equidistant from the nearest particles on each side.<\/p>\n

Here are the colours it came up with in LUV space:<\/p>\n

  <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

And here are the colours it came up with in LAB space:<\/p>\n

  <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

I also did a variation where it just chooses a different hue for each colour, maximizing the saturation (so arranging colours in a ring, rather than throughout a volume) - this is the LAB version but the LUV version is very similar:<\/p>\n

  <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

  <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span>   <\/span><\/p>\n

I want to do a little flash applet so you can see how the colour particles repel and rotate them around in 3D space - it's a very good way to visualize the perceptual colour solids.<\/p>\n","protected":false},"excerpt":{"rendered":"

Last year, I wrote about some code I had written to find maximally distributed sets of colours in perceptual colour space. I was having some problems with the code at the time, but since then I have got it working. I fixed it by only repelling each particle from the nearest one to it - […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45,4],"tags":[],"class_list":["post-1376","post","type-post","status-publish","format-standard","hentry","category-colour","category-computer"],"_links":{"self":[{"href":"https:\/\/www.reenigne.org\/blog\/wp-json\/wp\/v2\/posts\/1376","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.reenigne.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.reenigne.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.reenigne.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.reenigne.org\/blog\/wp-json\/wp\/v2\/comments?post=1376"}],"version-history":[{"count":3,"href":"https:\/\/www.reenigne.org\/blog\/wp-json\/wp\/v2\/posts\/1376\/revisions"}],"predecessor-version":[{"id":1378,"href":"https:\/\/www.reenigne.org\/blog\/wp-json\/wp\/v2\/posts\/1376\/revisions\/1378"}],"wp:attachment":[{"href":"https:\/\/www.reenigne.org\/blog\/wp-json\/wp\/v2\/media?parent=1376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.reenigne.org\/blog\/wp-json\/wp\/v2\/categories?post=1376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.reenigne.org\/blog\/wp-json\/wp\/v2\/tags?post=1376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}