testing 3 x 3 chunk

app.py

@@ -40,7 +40,7 @@ def render_pdf_page_as_image(doc, zoom=2.0):
 # -----------------------------
 # Chunk image into pieces
 # -----------------------------
-def chunk_image(image, rows=2, cols=2):
+def chunk_image(image, rows=3, cols=3):
     width, height = image.size
     chunk_width = width // cols
     chunk_height = height // rows