Stamp detection: Datasets & Models
Stamp detection locates rubber stamps, official seals, and ink imprints on scanned documents. It flags where each stamp appears so downstream systems can verify, crop, or route the document.
Stamp detection
This stamp detection workflow takes scanned or photographed document images, such as invoices, contracts, forms, and shipping paperwork, and runs an object detection model to locate stamps on each page. It returns bounding boxes around every rubber stamp, official seal, and ink imprint, separating them from printed text, logos, and handwriting so downstream systems can verify, crop, or route the document.
Try it out
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Why automate stamp detection
In document AI and OCR pipelines, manually reviewing every page to confirm a required stamp or seal is present is slow, inconsistent, and does not scale across thousands of incoming documents. Automating stamp detection lets teams instantly verify approvals, catch missing or misplaced seals, and separate certified documents from drafts without human sorting. Because stamps often overlap text and vary in color, rotation, and clarity, a trained detection model handles the ambiguity far more reliably than template matching or simple color thresholds. This reduces compliance risk and frees reviewers to focus on genuine exceptions.
Key benefits
Teams gain consistent, high-throughput document verification that runs on existing scanners and capture systems, with detections that plug directly into OCR and approval workflows. RF-DETR provides strong accuracy on cluttered pages where stamps overlap text and vary in style, and the workflow scales from a handful of documents to large batch processing. Detected regions can be cropped for archival, redaction, or further classification.
How to use it
- Upload an image: Drop any photo into the widget above to try stamp detection for free, right on this page.
- Preview instant results: The model detects rubber stamp, official seal, ink stamp, signature, date stamp within seconds and returns an annotated image with structured predictions, so you can immediately see how well it works. Adjust the detection classes and re-run until the results fit your scenario.
- Like what you see?: With a free Roboflow account, you can deploy this workflow with the Serverless Cloud API, customize it in your workspace, or train RF-DETR on your own images for production accuracy.
- Get started for free: No code or training data required to begin: upload, review the results, and make it part of your stack in a single click.
Recommended model for stamp detection
RF-DETR is state of the art for real-time object detection, instance segmentation, and keypoint detection, with higher accuracy and lower latency than comparable models, and it's Apache 2.0 licensed. When you're ready to build a production model for stamp detection, fine-tune it on your own labeled images, then deploy to a Serverless Cloud API endpoint.
Not sure where to start?
Describe your Stamp Detection project to Roboflow Agent.