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diff --git a/SD-VBS/benchmarks/texture_synthesis/src/matlab/lpyrHt.m b/SD-VBS/benchmarks/texture_synthesis/src/matlab/lpyrHt.m
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+++ b/SD-VBS/benchmarks/texture_synthesis/src/matlab/lpyrHt.m
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+% [HEIGHT] = lpyrHt(INDICES)
+%
+% Compute height of Laplacian pyramid with given its INDICES matrix.
+% See buildLpyr.m
+
+% Eero Simoncelli, 6/96.
+
+function [ht] =  lpyrHt(pind)
+
+% Don't count lowpass residual band
+ht = size(pind,1)-1;