diff --git a/code/data_preprocess_calculate_mean.py b/code/data_preprocess_calculate_mean.py
new file mode 100644
index 0000000..da1f115
--- /dev/null
+++ b/code/data_preprocess_calculate_mean.py
@@ -0,0 +1,19 @@
+import os,sys
+import numpy as np
+import caffe
+import glob
+
+if __name__=="__main__":
+
+    if len(sys.argv) < 3:
+        print "Usage python data_preprocess_calculate_mean.py <input-folder> <output-mean-file> <optional-resize-value>"
+    else:
+        # calculating the mean and writing it to a file
+        dir_src = sys.argv[1]
+        file_output = sys.argv[2]
+        image_size = 256
+        if len(sys.argv) > 3:
+            image_size = int(sys.argv[3])
+        list_image_files = glob.glob(os.path.join(dir_src, "*.JPG"))+glob.glob(os.path.join(dir_src, "*.jpg"))
+        for input_image in list_image_files:
+            mat_input_image = caffe.io.load_image(input_image, color=True)