From 2a720c237259baa2d968286244f9e43794c7e4d9 Mon Sep 17 00:00:00 2001
From: nunzip <np.scarh@gmail.com>
Date: Tue, 5 Mar 2019 01:01:58 +0000
Subject: remove sigma in virtual batch norm

---
 dcgan.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dcgan.py b/dcgan.py
index bb19446..0d0ff12 100644
--- a/dcgan.py
+++ b/dcgan.py
@@ -142,7 +142,8 @@ class DCGAN():
                 idx = np.random.randint(0, X_train.shape[0], batch_size)
                 ref_imgs = X_train[idx]
                 mu = np.mean(ref_imgs, axis=0) 
-                sigma = np.var(ref_imgs, axis=0)
+                sigma = 1#np.var(ref_imgs, axis=0)
+                #need to redefine sigma because of division by zero
                 imgs = np.divide(np.subtract(imgs, mu), sigma)
 
             # Sample noise and generate a batch of new images
-- 
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