fix: #2373 Fix image description

[ae9is]

Closes #2373

Risks

Probably medium.

Adds changes to node-plugin which is fairly common functionality. Only changes image description service and describe image action.

Background

What does this PR do?

See #2373

Multiple fixes related to the image description service. Should not impact use of OpenAI or Google image description services and API other than allowing more input image types to be correctly handled. Most of the changes relate to local testing

What kind of change is this?

Bug fixes (non-breaking change which fixes an issue)

Documentation changes needed?

My changes do not require a change to the project documentation.

Testing

Using either Ollama or LLama local model provider:

1. Start up the server and client
2. In the client chat ask the agent to describe an image (attach an image to the message)
3. It may help on smaller models to say "using the DESCRIBE_IMAGE action", or else the model might only try to describe the image without actually using the action
4. The model should respond and in the response there should be a "DESCRIBE_IMAGE" action tag

[github-actions]

Hi @ae9is! Welcome to the elizaOS community. Thanks for submitting your first pull request; your efforts are helping us accelerate towards AGI. We'll review it shortly. You are now an elizaOS contributor!

[wtfsayo]

@coderabbitai review

[coderabbitai]

📝 Walkthrough

Walkthrough

The pull request addresses multiple issues in the image description service within the plugin-node package. The changes focus on improving image processing, error handling, and dependency management. Key modifications include removing the gif-frames dependency, enhancing image loading and conversion capabilities using the sharp library, and updating the describeImage action to handle various file location result object structures.

Changes

File	Change Summary
packages/plugin-node/package.json	- Removed and re-added @elizaos/core dependency - Removed gif-frames dependency
packages/plugin-node/src/actions/describe-image.ts	- Enhanced file location extraction logic - Improved error handling for file location result objects
packages/plugin-node/src/services/image.ts	- Added sharp library import - Updated describeImage method to accept MIME type - Modified loadImageData to handle URLs and file paths - Introduced convertImageDataToFormat method - Added fetchImage method - Removed GIF frame extraction logic

Assessment against linked issues

Objective	Addressed	Explanation
GIF frame extraction issues [#2373]	✅
Image data loading for different formats [#2373]	✅
Transformers.js API compatibility [#2373]	✅
Ollama local image vision provider [#2373]	❓	Requires further investigation
File location result object handling [#2373]	✅
Image type classification [#2373]	✅

Finishing Touches

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[coderabbitai]

Actionable comments posted: 2

🧹 Nitpick comments (3)

packages/plugin-node/src/services/image.ts (2)

358-373: Improve MIME type detection and use async file operations

• Determining MIME type from file extension may not be reliable. Use a library like mime-types for accurate MIME type detection.
• Replace synchronous file system calls with asynchronous ones to prevent blocking the event loop.

Proposed change:

+ import mime from 'mime-types';
...
- imageData = fs.readFileSync(imageUrlOrPath);
- const ext = path.extname(imageUrlOrPath).slice(1).toLowerCase();
- mimeType = ext ? `image/${ext}` : "image/jpeg";
+ imageData = await fs.promises.readFile(imageUrlOrPath);
+ mimeType = mime.lookup(imageUrlOrPath) || 'application/octet-stream';

Ensure to install the mime-types package and update your dependencies accordingly.

---

266-268: Refactor duplicated provider initialization logic

The initialization logic for LLAMALOCAL and OLLAMA providers is duplicated. Refactor to eliminate redundancy and improve maintainability.

Also applies to: 289-292

packages/plugin-node/src/actions/describe-image.ts (1)

55-57: Avoid using 'any' in type assertions

Using (fileLocationResultObject?.object as any) weakens type safety. Refine the types or adjust the logic to eliminate the need for any.

📜 Review details

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📥 Commits

Reviewing files that changed from the base of the PR and between f8b9e3e and 7e96ac2.

⛔ Files ignored due to path filters (1)

• pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml

📒 Files selected for processing (3)

• packages/plugin-node/package.json (1 hunks)
• packages/plugin-node/src/actions/describe-image.ts (1 hunks)
• packages/plugin-node/src/services/image.ts (5 hunks)

🔇 Additional comments (2)

packages/plugin-node/src/actions/describe-image.ts (1)

46-50: Validated improved file location handling

The updated condition enhances the robustness of fileLocationResultObject validation. No issues found.

packages/plugin-node/package.json (1)

32-32: Dependencies adjusted appropriately

The re-addition of @elizaos/core and removal of gif-frames align with the code changes. Everything looks good.

[wtfsayo]

@coderabbitai final review

[coderabbitai]

@wtfsayo i've completed the final review of your pr. the changes effectively address the image description issues by improving image format handling, enhancing error management, and streamlining the image processing pipeline. the code modifications are well-structured and focused on the core functionality. i recommend proceeding with these changes.

✅ Actions performed

Comments resolved.

[wtfsayo]

@coderabbitai why is LLAMA_LOCAL mode being default in integration tests

[coderabbitai]

Tip

For best results, initiate chat on the files or code changes.

@wtfsayo Looking at the code, LLAMA_LOCAL is not explicitly set as default, but becomes the fallback option when OLLAMA_MODEL environment variable is not configured. The service will:

1. First check if OLLAMA_MODEL is set
2. If OLLAMA_MODEL exists, use Ollama API
3. If not, fall back to local Llama mode using the Hermes-3-Llama model

To use Ollama instead of local Llama in the integration tests, you would need to set the OLLAMA_MODEL environment variable before running the tests.

🔗 Analysis chain

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[wtfsayo]

lgtm