Struct FrameDiff 

pub struct FrameDiff { /* private fields */ }

Boolean gate: did the region’s pixels change since the last evaluation? Hashes the region’s bytes; the first evaluation always reports changed.

Implementations

impl FrameDiff

pub fn new() -> Self

Trait Implementations

impl Default for FrameDiff

fn default() -> FrameDiff

Returns the “default value” for a type.

impl Detector for FrameDiff

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

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.