Update app.py

app.py

@@ -39,8 +39,8 @@ def apply_filter(img, filters):
     return newimage
 
 def greet(image, in_contrast, in_brightness):
-    in_contrast = float(in_contrast)
-    in_brightness = float(in_brightness)
+    in_contrast = int(in_contrast)
+    in_brightness = int(in_brightness)
     # contrast [1.0-3.0]
     # brightness [0-100]
     # https://docs.opencv.org/4.x/d3/dc1/tutorial_basic_linear_transform.html