Update app.py

app.py

@@ -14,7 +14,13 @@ def filter_img(input_img,filter_type):
     #img = np.array(img)
     # Reading in as JPG format
     img = cv2.imread(input_img)
-    img = cv2.resize(img, (1280,720))
+
+    new_height = 1080
+
+    ratio = float(new_height) / img.shape[0]
+    new_width = int(img.shape[1] * ratio)
+    
+    img = cv2.resize(img, (new_width,new_height))
     
     filtered_img = np.zeros(img.shape, dtype=int)