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Diffstat (limited to 'SD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/ifftshift.m')
| -rwxr-xr-x | SD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/ifftshift.m | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/SD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/ifftshift.m b/SD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/ifftshift.m deleted file mode 100755 index 2ade297..0000000 --- a/SD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/ifftshift.m +++ /dev/null | |||
| @@ -1,15 +0,0 @@ | |||
| 1 | % [RES] = ifftshift (MTX) | ||
| 2 | % | ||
| 3 | % Inverse of MatLab's FFTSHIFT. That is, | ||
| 4 | % ifftshift(fftshift(MTX)) = MTX | ||
| 5 | % for any size MTX. | ||
| 6 | |||
| 7 | % Eero Simoncelli, 2/97. | ||
| 8 | |||
| 9 | function [res] = ifftshift(mtx) | ||
| 10 | |||
| 11 | sz = size(mtx); | ||
| 12 | DC = ceil((sz+1)./2); % location of DC term in a matlab fft. | ||
| 13 | |||
| 14 | res = [mtx(DC(1):sz(1), DC(2):sz(2)) , mtx(DC(1):sz(1), 1:DC(2)-1); ... | ||
| 15 | mtx(1:DC(1)-1, DC(2):sz(2)) , mtx(1:DC(1)-1, 1:DC(2)-1)]; | ||
