bugfix

app.py

@@ -70,7 +70,7 @@ def image_matting(
 
     alpha = (alpha * 255).astype(np.uint8)
     kernel = np.ones((5, 5), np.uint8)
-    if morph_op == "dilate":
+    if morph_op == "Dilate":
         alpha = cv2.dilate(alpha, kernel, iterations=int(morph_op_factor))
     else:
         alpha = cv2.erode(alpha, kernel, iterations=int(morph_op_factor))