how to change the image size?

[YiChenCityU]

Dear Authors,

This is a very great work! Thanks very much.
How to change the parameters of Cropping2D in order to detect image with size about 640 * 480?

Thanks very much.

[cv-shiyanshi]

@YiChenCityU Hi, have you changed the image size successfully？Could you share how do you solved that ?