Add 3D semantic segmentation code example

[innat]

#2092

[innat]

@mattdangerw
I addressed all the feedback you made here. Please check it.

[innat]

@mattdangerw
A gentle reminder.

[innat]

@mattdangerw
Could you please take a look this PR? Is it suitable for keras code example, otherwise I will close the PR.

[divyashreepathihalli]

/gemini review

[gemini-code-assist]

Code Review

The code changes introduce a 3D semantic segmentation pipeline for medical imaging, specifically brain tumor segmentation using the BraTS dataset. The code is well-structured, but there are opportunities to improve maintainability, clarity, and correctness through refactoring repetitive code blocks, clarifying visualization logic, and simplifying computations.

[innat]

@divyashreepathihalli
A review from human would be appreciated. Thanks.

[divyashreepathihalli]

LGTM! please generate the rest of the files! thank you!

[innat]

@divyashreepathihalli
I got

ValueError: Found 437 lines of code, but expected fewer than 350

Is it possible to allow more lines than expected?

Edits

I’ve made an effort to reduce the amount of code, but each part is important for conveying the complete picture. BraTS is a complex problem, and solving it effectively requires a thorough and well-demonstrated approach. My reasoning is that the additional lines of code are both relevant and necessary to present an end-to-end, understandable example. With that in mind, I’d like to request an exception to allow a higher LOC than typically expected in this case.

[innat]

cc @fchollet ⬆️