Update app.py

app.py

@@ -19,12 +19,14 @@ def split_image(image):
                 box = (j*width/3, i*height/3, (j+1)*width/3, (i+1)*height/3)
                 region = im.crop(box)
                 region = region.convert("RGB")
-                region = region.resize((512, 512), Image.ANTIALIAS)
+                region = region.resize((width/3, height/3), Image.ANTIALIAS)
     
-                with tempfile.NamedTemporaryFile(suffix='.jpg') as temp:
+                with tempfile.NamedTemporaryFile(suffix='.png') as temp:
                     region.save(temp.name)
                     images.append(temp.name)
                     zip.write(temp.name)
+                    temp.flush()
+                    temp.close()
                     
     return "images.zip"