analyze video for flash patterns · PSE · WCAG 2.3.1 · broadcast compliance
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standards
- Harding PSE Test: >3 flashes/second covering >25% of screen area = fail.
- WCAG 2.3.1: No more than 3 flashes below general and red flash thresholds in any 1-second period.
- UK Ofcom / BBC guidelines: Maximum 3Hz flash rate for luminance transitions.
- This tool performs a simplified heuristic analysis. For broadcast compliance, use certified tools like Harding Flash & Pattern Analyzer.