Capture_images_script capture resolution using Grove Vision AI Module

I am using the python script provided by Seeed to capture images from the Grove Vision AI Module. The script works just fine and I receive the images captured however the images are 640x480. According to the OV2640 chip’s documentation, the sensor is able to capture 1600x1200. I have tried to find a way to modify the script so that it captures 1600x1200 but I can’t seem to find a solution. How could I capture images with the full resolution provided by the Grove Vision AI Module?
Thanks in advance.