Performance issue in the definition of testResizeToRangeWithDynamicSpatialShape, core/preprocessor_test.py(P1)

[DLPerf]

Hello, I found a performance issue in the definition of testResizeToRangeWithDynamicSpatialShape, core/preprocessor_test.py, tf.shape(out_image) will be created repeatedly during program execution, resulting in reduced efficiency. I think out_image_shape and in_image should be created before the loop.

Looking forward to your reply. Btw, I am very glad to create a PR to fix it if you are too busy.

[ShreyAmbesh]

Thanks for looking into it.
I am a bit busy to look into this right now
also thes files you mentions in this as well as #38 are files from TF and unchanged. It's just very old at this time.
but will be great if you can create a PR