UNET implementation support

[sidmishfpl1801]

Is it possible to utilize the pre-trained Keras UNET model for making predictions? If not, can we incorporate our own custom layer instead? If neither option is feasible, could you kindly provide some suggestions for a possible workaround?

[milancurcic]

Currently no. I believe the key missing piece is the upsampling layer type, i.e. Keras's UpSampling2D layer. I'll open an issue for it.

[milancurcic]

On second thought, a transpose convolution is also missing here. So we need both transpose operations of convolutions and pooling for a UNET to work.