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Brightness

visual_cortex_vision

Struct Brightness 

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pub struct Brightness;
Expand description

Mean luma (0.0..=255.0) of the region, as DetectorOutput::Number. Pair with .on_threshold(...) for “screen went dark”-style watchers.

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impl Detector for Brightness

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fn evaluate( &mut self, view: &FrameView<'_>, ) -> Result<DetectorOutput, DetectorError>

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fn is_heavy(&self) -> bool

Heavy detectors (OCR, ML inference) are routed to the blocking thread pool by the watcher loop so they never stall the async scheduler. Cheap pixel-math detectors keep the default false.

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