Squashed commit of the sb-vbs branch.

Includes the SD-VBS benchmarks modified to:
- Use libextra to loop as realtime jobs
- Preallocate memory before starting their main computation
- Accept input via stdin instead of via argc

Does not include the SD-VBS matlab code.

Fixes libextra execution in LITMUS^RT.

1 files changed, 32 insertions, 0 deletions

diff --git a/SD-VBS/common/toolbox/MultiNcut/doog1.m b/SD-VBS/common/toolbox/MultiNcut/doog1.m
new file mode 100755
index 0000000..dd8e87b
--- /dev/null
+++ b/SD-VBS/common/toolbox/MultiNcut/doog1.m
@@ -0,0 +1,32 @@
+function H=doog1(sig,r,th,N);
+% H=doog1(sig,r,th,N);
+
+
+% by Serge Belongie
+
+no_pts=N;  % no. of points in x,y grid
+
+[x,y]=meshgrid(-(N/2)+1/2:(N/2)-1/2,-(N/2)+1/2:(N/2)-1/2);
+
+phi=pi*th/180;
+sigy=sig;
+sigx=r*sig;
+R=[cos(phi) -sin(phi); sin(phi) cos(phi)];
+C=R*diag([sigx,sigy])*R';
+
+X=[x(:) y(:)];
+
+Gb=gaussian(X,[0 0]',C);
+Gb=reshape(Gb,N,N);
+
+m=R*[0 sig]';
+
+a=1;
+b=-1;
+
+% make odd-symmetric filter
+Ga=gaussian(X,m/2,C);
+Ga=reshape(Ga,N,N);
+Gb=rot90(Ga,2);
+H=a*Ga+b*Gb; 
+