Build Your Own Image Search Using AI Object Detection, CDN and ElasticSearch

This n8n workflow demonstrates how to automate indexing of images to build a object-based image search.

By utilising a Detr-Resnet-50 Object Classification model, we can identify objects within an image and store these associations in Elasticsearch along with a reference to the image.

How it works

An image is imported into the workflow via HTTP request node. The image is then sent to Cloudflare's Worker AI API where the service runs the image through the Detr-Resnet-50 object classification model. The API returns the object associations with their positions in the image, labels and confidence score of the classification. Confidence scores of less the 0.9 are discarded for brevity. The image's URL and its associations are then index in an ElasticSearch server ready for searching.

Requirements A Cloudflare account with Workers AI enabled to access the object classification model. An ElasticSearch instance to store the image url and related associations.

Extending this workflow Further enrich your indexed data with additional attributes or metrics relevant to your users.

Use a vectorstore to provide similarity search over the images.