Wait for frame change

AutomationConfigured target requiredobservation.wait-change

Capture the exact target until a region changes from its baseline by the requested threshold.

Example use

After turning a page, wait for the content region to differ sufficiently from its baseline.

Node preview

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Data inputs 6

Observation regionregionRegion: Region of the exact target frame to compare.
Default availableDefault: {"height":1,"unit":"ratio","width":1,"x":0,"y":0}
Value format examples
{"height":0.5,"unit":"ratio","width":0.5,"x":0.25,"y":0.25}
Change thresholdthresholdNumber: Report changed when the changed-cell ratio reaches this value.
Default availableDefault: 0.02
Wait timeouttimeoutDuration (milliseconds) · ms: Maximum milliseconds to wait for a change.
Default availableDefault: 5000
Minimum: 0
Maximum: 86400000
Value format examples
1000
Poll intervalpoll-intervalDuration (milliseconds) · ms: Milliseconds between fresh captures.
Default availableDefault: 100
Minimum: 0
Maximum: 86400000
Value format examples
1000
Sample gridgrid-sizeInteger: Bounded downsample cell count on each axis.
Default availableDefault: 32
Minimum: -9007199254740991
Maximum: 9007199254740991
Value format examples
0
42
Cell deltacell-deltaInteger: Color difference that marks one grid cell changed.
Default availableDefault: 12
Minimum: -9007199254740991
Maximum: 9007199254740991
Value format examples
0
42

Configuration 1

Window target slotslotText: Select a target bound to an application path, window title, and window class.
RequiredDefault: None
Minimum characters: 1
Maximum characters: 128
Pattern: ^[a-z][a-z0-9]*(?:[-_][a-z0-9]+)*$

Data outputs 2

Changed ratiochanged-ratioNumber: Ratio of cells changed from the baseline frame.
Mean differencemean-differenceNumber: Mean grid color difference from the baseline frame.

Control and error ports

InputinInput · Control: An incoming control signal enters this operation.
ChangedchangedOutput · Control: Continue from this result or stage; see the node description for branch conditions.
TimeouttimeoutOutput · Control: Continue from this result or stage; see the node description for branch conditions.
FailedfailedOutput · Error: Emitted when the operation fails; connect error handling here.

Version and node identity

Version 1.1.0

sha256:05f66ab06c1dc9e682227699fdba6024f9317d7726c8a3f8e35c2015ba4633e4