Changes between Version 6 and Version 7 of img2rubik
- Timestamp:
- 06/11/2008 08:02:15 PM (17 years ago)
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img2rubik
v6 v7 11 11 I have seen #FFFFFF, !#000E98, #FF0000, !#25C200, #F6FF00 #FF9C00 being used, too. 12 12 13 What’s difficult in this specific colour reduction exercise is that the convex hull of all available colours does not fill the entire RGB cube. The most important missing colour is black, but also cyan and magenta are missing. And then there isorange, which is totally useless since we already have red and yellow: what did the Rubik’s Cube creators have in mind? Do they despise art so much?13 What’s difficult in this specific colour reduction exercise is that the convex hull of all available colours does not fill the entire RGB cube. The most important missing colour is black, but also cyan and magenta are missing. And yet we have orange, which is totally useless since we already have red and yellow: what did the Rubik’s Cube creators have in mind? Do they despise art so much? 14 14 15 15 = Tests with existing software = … … 33 33 [[Image(lena-gimpgfs.png)]] [[Image(lena-gimpgfs2.png)]] 34 34 35 == ImageMagick == 36 37 This is ImageMagick’s Floyd-Steinberg algorithm, on the original image and on a gamma-corrected image: 38 39 [[Image(lena-im.png)]] [[Image(lena-gim.png)]] 40 35 41 == Links == 36 42