Seal Suspicion Analysis · Local-only

Free Online Seal Forgery Suspicion Detector

Upload a stamped scan or screenshot and this tool performs pixel-level analysis on red seal regions directly in your browser, estimating a suspicion score and mask preview. Results are heuristic and for reference only, not a formal forensic conclusion.

This is a heuristic suspicion detector based on pixel features, not a formal forensic conclusion. Treat the score as a clue and always combine it with originals, capture process and signing system logs.

Sensitivity 70%

Original

Original File: -

Please select a seal image

Suspicion Overview

Upload an image and click "Run Detection" to see the score and explanation here.

Detection Metrics

Width: -
Height: -
Seal Pixel Count: -
Area Ratio: -
Connected Components: -
Perimeter: -
Perimeter / Area: -
Hue Standard Deviation: -

Seal Pixel Mask (Preview)

Not generated

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