AI Generated Caption Overlay on Image

Name: AI Generated Caption Overlay on Image
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Author: Free N8N

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Image ProcessingAIAutomationCaptioningGeminiImage EditingOverlay

Generates a caption for an image using AI and overlays it onto the original image.

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About This Workflow

Overview

This workflow demonstrates how to generate a caption for an image using a multimodal AI model (like Google Gemini) and then overlay that generated caption onto the original image using n8n's image editing capabilities. It's useful for adding context, watermarks, or other textual information to images programmatically.

Key Features

Utilizes multimodal AI models for image captioning.
Dynamically calculates optimal text placement for overlays.
Applies text and background rectangles to images.
Supports fetching images via HTTP requests.

How To Use

Import the workflow into your n8n instance.
Configure the Google Gemini(PaLM) Api account credential with your Google Cloud API key.
Replace the WEBHOOK_URL environment variable in the Get Image node with a valid image URL.
Execute the workflow. The output will be an image with the generated caption overlaid.

Apps Used

Automation

Captioning

Gemini

Image Editing

Overlay

Workflow JSON

{
  "id": "dcdc3b36-fe4a-426e-9d5c-9aac6c2ef932",
  "name": "AI Generated Caption Overlay on Image",
  "nodes": 0,
  "category": "Image Processing",
  "status": "active",
  "version": "1.0.0"
}

Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.