Hi Fernando, Le 04/10/2012 09:16, Fernando Perez a écrit : > This would make for an awesome couple of examples for the gallery, the > mathematica solutions look really pretty cool: > > http://mathematica.stackexchange.com/questions/11350/xkcd-style-graphs I've never used Mathematica so that it's pretty difficult for me to understand the following lines of code which I guess do the main job of distorting the image
xkcdDistort[p_] := Module[{r, ix, iy},
r = ImagePad[Rasterize@p, 10, Padding -> White];
{ix, iy} =
Table[RandomImage[{-1, 1}, ImageDimensions@r]~ImageConvolve~
GaussianMatrix[10], {2}];
ImagePad[ImageTransformation[r,
# + 15 {ImageValue[ix, #], ImageValue[iy, #]} &, DataRange ->
Full], -5]];
Is there somebody there that can describe this algorithm with words
(English or Python ;-)) ?
I feel like the key point is about adressing the rasterized plot image
"r" with some slightly randomized indices "ix" and "iy". However, I
really don't get the step that generates these indices.
Best,
Pierre
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