Update app.py

app.py

@@ -123,7 +123,7 @@ top_margin = 100
 
 def predict(input_path):
     image = cv.imread(input_path)
-    bin_image = preprocess_image(input_img)
+    bin_image = preprocess_image(image)
     lines = split_image_into_lines(bin_image)
     improved_text = get_improved_result(lines)
     out_image = put_text(improved_text, font, font_scale, color, thickness, max_width, out_image_width, top_margin)