Update data.py

Author: wepe

DeepLearning Tutorials/keras_usage/data.py

@@ -23,11 +23,12 @@ def load_data():
 		arr = np.asarray(img,dtype="float32")
 		data[i,:,:,:] = arr
 		label[i] = int(imgs[i].split('.')[0])
+        data /= np.max(data)
+        data -= np.mean(data)
 	return data,label
 
 
 
 
 
 
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