{"id":2822,"date":"2011-08-19T02:04:12","date_gmt":"2011-08-18T19:04:12","guid":{"rendered":"http:\/\/maggiemaggio.com\/color\/?p=2822"},"modified":"2012-01-17T14:14:40","modified_gmt":"2012-01-17T07:14:40","slug":"believe-it-or-not","status":"publish","type":"post","link":"https:\/\/maggiemaggio.com\/color\/2011\/08\/believe-it-or-not\/","title":{"rendered":"Believe It or Not"},"content":{"rendered":"

\"\"<\/a>One of the most important concepts in color study is an appreciation of the difference between what a color is and what it appears to be.<\/p>\n

In our book, Lindly and I introduced this concept in the Chapter “Games Colors Play.” We explored simultaneous contrast, blending, and the apparent shifting of hue, value and saturation depending on context. These are all optical illusions.<\/p>\n

This\u00a0checker shadow illusion<\/a>, created by Edward H. Adelson, is one of the most fascinating optical illusions of value shifting.\u00a0In this case, believe or not, Color A and Color B are the same value.<\/p>\n

\"\"<\/a><\/p>\n

This is James Gurney’s painted version. Color 1 and Color 2 are the same value. Gurney’s explanation<\/a> is one of the easiest to understand.<\/p>\n

Thanks to Gurney<\/a> for the link to the video version of this famous illusion by brusspup.<\/p>\n