can the ggcnn deal with the image of different size

[CodeKingWang]

Can this network handle 1280*720 pictures

[dougsm]

Because it is a CNN, there is no technical reason why it shouldn't work. The network was trained on 300*300 images, so might not work properly out of the box, in which case you could re-train it for your desired size. Hope that helps.

[Hongbo-Z]

Can this network handle 1280*720 pictures

An easy way is to crop your images and make length = width, such as from 1280* 720 to 720* 720, then resize it to 300* 300 to fit the input size of GG-CNN.