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0a37e09d · Larkin Heintzman · e28a1997 · 0a37e09d
Commit 0a37e09d authored Dec 10, 2019 by Larkin Heintzman
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perlin_noise.m Matlab Code/perlin_noise.m +12 -0

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--- a/Matlab Code/perlin_noise.m
+++ b/Matlab Code/perlin_noise.m
+function im = perlin_noise(im)
+    [n, m] = size(im);
+    i = 0;
+    w = sqrt(n*m);
+    while w > 3
+        i = i + 1;
+        d = interp2(randn(n, m), i-1, 'spline');
+        im = im + i * d(1:n, 1:m);
+        w = w - ceil(w/2 - 1);
+    end
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