base_decoder/preprocessor_config.json

{
  "do_convert_rgb": true,
  "do_normalize": true,
  "image_processor_type": "Pix2StructImageProcessor",
  "is_vqa": true,
  "max_patches": 2048,
  "patch_size": {
    "height": 16,
    "width": 16
  },
  "processor_class": "Pix2StructProcessor"
}