Image upsampling using interpolation function.
Hi @RocaVincent ,

You can use Upsampling layers for it for eg please refer [Upsampling3D](https://www.tensorflow.org/api_docs/python/tf/keras/layers/UpSampling3D) API.

```
input_image=x
tf.keras.layers.UpSampling3D(size=2)(x)
```

If x is of shape (W,H,D), then the above code will upsample it to (2W,2H,2D). Hi @SuryanarayanaY ,

In fact I'm searching for **trilinear interpolation**, that's why I mentioned [this interpolation function](https://www.tensorflow.org/graphics/api_docs/python/tfg/math/interpolation/trilinear/interpolate). [UpSampling3D](https://www.tensorflow.org/api_docs/python/tf/keras/layers/UpSampling3D) simply does nearest-neighbor interpolation. Hi @RocaVincent ,

We are not supporting tensorflow_graphics here. Please file an issue at tf-graphics repo following this [link](https://github.com/tensorflow/graphics/issues).

Thanks! This issue is stale because it has been open for 7 days with no activity. It will be closed if no further activity occurs. Thank you. This issue was closed because it has been inactive for 7 days since being marked as stale. Please reopen if you'd like to work on this further. Are you satisfied with the resolution of your issue?
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### Issue type

Feature Request

### Have you reproduced the bug with TensorFlow Nightly?

No

### Source

binary

### TensorFlow version

last

### Custom code

No

### OS platform and distribution

_No response_

### Mobile device

_No response_

### Python version

_No response_

### Bazel version

_No response_

### GCC/compiler version

_No response_

### CUDA/cuDNN version

_No response_

### GPU model and memory

_No response_

### Current behavior?

TensorfFlow now provides [a function for trilinear interpolation](https://www.tensorflow.org/graphics/api_docs/python/tfg/math/interpolation/trilinear/interpolate). However, how can we use it to upsample a 3D image ? For example, I have an image `x` of shape `(W,H,D)` and I would like to upsample it to `(W*2,H*2,D*2)`.

Any help appreciated, thanks.

### Standalone code to reproduce the issue

```shell
No code.
```


### Relevant log output

_No response_