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-rwxr-xr-xSD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/mkR.m32
1 files changed, 0 insertions, 32 deletions
diff --git a/SD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/mkR.m b/SD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/mkR.m
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--- a/SD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/mkR.m
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1% IM = mkR(SIZE, EXPT, ORIGIN)
2%
3% Compute a matrix of dimension SIZE (a [Y X] 2-vector, or a scalar)
4% containing samples of a radial ramp function, raised to power EXPT
5% (default = 1), with given ORIGIN (default = (size+1)/2, [1 1] =
6% upper left). All but the first argument are optional.
7
8% Eero Simoncelli, 6/96.
9
10function [res] = mkR(sz, expt, origin)
11
12sz = sz(:);
13if (size(sz,1) == 1)
14 sz = [sz,sz];
15end
16
17% -----------------------------------------------------------------
18% OPTIONAL args:
19
20if (exist('expt') ~= 1)
21 expt = 1;
22end
23
24if (exist('origin') ~= 1)
25 origin = (sz+1)/2;
26end
27
28% -----------------------------------------------------------------
29
30[xramp,yramp] = meshgrid( [1:sz(2)]-origin(2), [1:sz(1)]-origin(1) );
31
32res = (xramp.^2 + yramp.^2).^(expt/2);