Android resize image for llava and gemma

[kirklandsign]

No description provided.

[Copilot]

Pull Request Overview

This PR implements image resizing functionality for different model types in an Android LLaMA demo application. The changes introduce model-specific image size configurations and simplify the image resizing logic.

• Adds a method to determine input image size based on model type (LLAVA_1_5: 336px, GEMMA_3: 896px)
• Modifies ETImage constructor and resizing methods to accept dynamic side sizes
• Removes custom toString() method from ModelType enum and replaces aspect-ratio-preserving resize with square resizing

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
ModelType.java	Removes custom toString() method for enum values
MainActivity.java	Adds getInputImageSideSize() method and updates image processing to use dynamic sizing
ETImage.java	Updates constructor and resizing logic to accept configurable side sizes and use square resizing

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[Copilot]

The change from aspect-ratio-preserving resize to square resizing may distort images. This could negatively impact model performance if the models expect properly proportioned images. Consider whether this change is intentional or if aspect ratio should be preserved.