Update app.py

app.py

@@ -478,12 +478,12 @@ def get_mean_and_std(x):
 	return x_mean, x_std
 
 def color_transfer(base):
-    global frames
-    targets = []
-    
-	for n in range(len(frames)):
-      targets.append(frames[base])
-      if n != base:
+  global frames
+  targets = []
+
+  for n in range(len(frames)):
+	targets.append(frames[base])
+	if n != base:
 		print("Converting picture "+str(n)+"...")
 		s, t = read_file(frames[n],targets[n])
 		s_mean, s_std = get_mean_and_std(s)