Geolayoutlm, effect of image

Hi thank you for your great work.

I was wondering if you have tested the effect of the image on accuracy of SER and RE resutls? (compared to text and layout)
When I overwrite the image to a matrix of zeros, the accuracy of the model seem almost unaffected. seem like the image has no contribution to the final result.
I'm looking forward to hear your thoughts on this.

Best,
Hooman