AI Agent: Passport Photo Validator

Unlock Automated Compliance Checks with this AI Agent

This AI Agent automates the tedious, manual process of checking photos against complex compliance rules. It possesses a core ability: Image Validation. By connecting to Google Gemini's advanced vision model, the agent intelligently analyzes an image, compares it against a pre-defined set of rules (in this case, UK passport photo requirements), and provides a clear, structured JSON output. This allows you to build reliable, automated approval workflows for any system that relies on user-submitted images.

Key Features & Benefits

• AI-Powered Validation: Leverages the powerful Google Gemini Pro vision model for nuanced and accurate image analysis.
• Structured Output: Uses a LangChain Structured Output Parser to deliver a predictable JSON response (is_valid, reasons, description), making it easy to use the results in subsequent automation steps.
• Pre-configured Ruleset: Comes loaded with the official UK government guidelines for passport photos, ready to use out-of-the-box.
• Adaptable: Easily customize the prompt with your own rules to validate any type of image, from employee headshots to user-generated content.
• Integrated Preprocessing: Includes nodes to fetch images from Google Drive and resize them, streamlining the input pipeline for the AI model.

• An n8n instance (Cloud or self-hosted).
• A Google API Key with access to the Gemini 1.5 Pro model.
• Google Drive OAuth2 credentials to allow n8n to download the source images.

1. Import the workflow into your n8n instance.
2. Configure the 'Download Photos' node by creating new Google Drive OAuth2 credentials.
3. Configure the 'Google Gemini Chat Model' node with your Google Gemini API Key.
4. In the 'Photo URLs' node, replace the example Google Drive links with URLs to your own images.
5. (Optional) To use a different image source, replace the 'Photo URLs' and 'Download Photos' nodes with your own trigger, such as a webhook or a form submission.
6. (Optional) To validate against different criteria, edit the system prompt in the 'Passport Photo Validator' node.
7. Activate the workflow to run your first validation.