initial sd-vbs

initial sd-vbs

add sd-vbs

sd-vbs

1 files changed, 24 insertions, 0 deletions

diff --git a/SD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/pyrBandIndices.m b/SD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/pyrBandIndices.m
new file mode 100755
index 0000000..f94c217
--- /dev/null
+++ b/SD-VBS/benchmarks/texture_synthesis/src/matlabPyrTools/pyrBandIndices.m
@@ -0,0 +1,24 @@
+% RES = pyrBandIndices(INDICES, BAND_NUM)
+%
+% Return indices for accessing a subband from a pyramid 
+% (gaussian, laplacian, QMF/wavelet, steerable).
+
+% Eero Simoncelli, 6/96.
+
+function indices =  pyrBandIndices(pind,band)
+
+if ((band > size(pind,1)) | (band < 1))
+  error(sprintf('BAND_NUM must be between 1 and number of pyramid bands (%d).', ...
+      size(pind,1)));
+end
+
+if (size(pind,2) ~= 2)
+  error('INDICES must be an Nx2 matrix indicating the size of the pyramid subbands');
+end
+
+ind = 1;
+for l=1:band-1
+  ind = ind + prod(pind(l,:));
+end
+
+indices = ind:ind+prod(pind(band,:))-1;