Add utility for weight visualization

[shashaka]

Regarding the file inspection tool, I have added a utility for visualizing model weights. However, I believe it would be more versatile and widely applicable to implement this directly for models rather than focusing only on saved files. As a result, I have developed logic to display the model's weights using Matplotlib.

If it sounds good, I would like to propose integrating this functionality into plot_model, or perhaps creating a new utility method that accepts a model as a parameter.

here is my gist

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 64 lines in your changes missing coverage. Please review.

Project coverage is 79.26%. Comparing base (cb6ece3) to head (b103e0e).
Report is 11 commits behind head on master.

Files with missing lines	Patch %	Lines
keras/src/utils/weight_visualization.py	0.00%	64 Missing ⚠️

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##           master   #20225      +/-   ##
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[fchollet]

Thanks for the PR! As for #19705, the main value would be to have an interactive, nice-looking HTML-based way to visualize the content of saved files and edit them. Visualizing weights is a separate problem, which we could leverage as part of the saved file visualizer, but it's not the main value there.

If you want to add a weight visualizer, we should make it clear where the boundaries between different "slices" of weights are. Right now everything is a big 2D grid. We should have slice separators and some indicator of which axes the slices map to.

But again, the main goal of #19705 is to see and edit the content of saved files interactively. Weight visualization is secondary.

[shashaka]

Ok, I understand your thought. So, How about using load_model and save_model method to load,edit and save the model attribute and weight rather than using directly handle savedModel format?
I think this approach could be more versatile, since there could be several saving file format include .keras and .h5 in the future.
Plz feel free to share your opinion on this.

[fchollet]

So, How about using load_model and save_model method to load,edit and save the model attribute and weight rather than using directly handle savedModel format?

It is not possible to load a model if it doesn't match your local code. You can only load it by modifying the saved file first.

The formats to target are the .keras and .weights.h5 formats.