--- a
+++ b/preNetNorm.m
@@ -0,0 +1,23 @@
+function [imout] = preNetNorm(imin)
+
+imin = im2double(imin);
+
+u = [0.485, 0.456, 0.406];
+st =[0.229, 0.224, 0.225];
+
+for i = 1:3
+U(:,:,i) = ones(size(imin,1),size(imin,2)).*u(i);
+ST(:,:,i) = ones(size(imin,1),size(imin,2)).*st(i);
+end
+
+
+imnorm = (imin - U) ./ ST;
+
+imsize = imresize(imnorm,[250,250]);
+
+targetSize = [224 224];
+
+win1 = centerCropWindow2d(size(imsize),targetSize);
+
+imout = imcrop(imsize,win1);
+