initial sd-vbs

initial sd-vbs

add sd-vbs

sd-vbs

1 files changed, 35 insertions, 0 deletions

diff --git a/SD-VBS/benchmarks/sift/src/c/halveSize.c b/SD-VBS/benchmarks/sift/src/c/halveSize.c
new file mode 100644
index 0000000..fe1e536
--- /dev/null
+++ b/SD-VBS/benchmarks/sift/src/c/halveSize.c
@@ -0,0 +1,35 @@
+/********************************
+Author: Sravanthi Kota Venkata
+********************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "sift.h"
+
+F2D* halveSize(F2D* I)
+{
+    F2D *J;
+    int i, j, k;
+    int hM, hN;
+    int M, N;
+
+    M = I->height;
+    N = I->width;
+    
+    hM = (M+1)/2;
+    hN = (N+1)/2;
+
+    J = fSetArray(hM, hN, 0.0);
+
+    k = 0;
+    for(i=0; i<M; i+=2)
+    {
+        for(j=0; j<N; j+=2)
+        {
+            asubsref(J,k++) = subsref(I,i,j);
+        }
+    }
+
+    return J;
+}
+