DocOwl2,self.model.init_processor(tokenizer=self.tokenizer, basic_image_size=504, crop_anchors='grid_12'),whats meaning of these params

[happywinder]

I run the inference demo on huggingface
I wonder whats the meaning of these params ,self.model.init_processor(tokenizer=self.tokenizer, basic_image_size=504, crop_anchors='grid_12')
and I try this model on my own data for a easy mission for example extracting words from paper ,and it answered "not answerable" ,how can i fix it，the image resolution is 3672 × 4752 。i try 844 × 1052，not work either