Update app.py

app.py

@@ -118,10 +118,9 @@ def load_img(filename, norm=True):
 def inference(image, upscale, large_input_flag, color_fix):
     if upscale is None or not isinstance(upscale, (int, float)):
         upscale = 2 
+		
     upscale = int(upscale)
-	if upscale > 4: 
-		upscale = 4 
-	if 0 < upscale < 3:
+    if 0 < upscale < 3:
 		upscale = 2
 
 	model = set_safmn(upscale)