🔥 Fire Detection Alarm System v2.0

A highly optimized real-time fire detection system utilizing computer vision, HSV color masking, and dual-layer verification to eliminate false triggers. 🚨

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Features

• Dual-layer detection — identifies both the orange/red aura and the bright thermal core of a flame, eliminating false positives from posters or clothing.
• Persistence guard — fire must be visible for 1.5 seconds continuously before the alarm triggers.
• Auto-generated alarm — synthesises a fallback siren if alarm.mp3 is missing.
• Clean HUD — minimal status overlay; no cluttered UI.

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Requirements

Python 3.8+ and:

pip install -r requirements.txt

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Usage

python3 main.py

Press q to quit.

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Tuning (in main.py)

Constant	Default	Purpose
MIN_CONTOUR_AREA	1500	Minimum fire blob size (px²). Increase to reduce false positives.
MIN_CORE_RATIO	0.07	Fraction of blob that must be bright core.
PERSISTENCE_THRESHOLD	1.5	Seconds before alarm triggers.
HSV_AURA_LOWER/UPPER	Orange/Red	Outer flame colour range.
HSV_CORE_LOWER/UPPER	Yellow/White	Inner hotspot colour range.

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License

MIT License — © 2026 Pratik Mishra. See LICENSE.