Update app.py

app.py

@@ -169,6 +169,7 @@ def extract_line_from_image(image, lower_line, upper_line):
 def extract(image):
     print(image)
     img = rgb2gray(image)
+    print(img)
 
     #img = rgb2gray(imread("Penwritten_2048x.jpeg"))
     #img = rgb2gray(imread("test.jpg"))