Track dual-color bar

OtherConfigured target requireddual-color-bar.track

Track a narrow cursor relative to a wide target bar using column clusters in an explicit image region.

Example use

Detect the two-color bar in an image and use pointer position, target width and confidence for later control decisions.

Node preview

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Data inputs 11

Source imageimageImage: Image to analyze.
RequiredDefault: None
Cursor colorinner-rangeColor range: RGB or HSV range for the narrow cursor.
RequiredDefault: None
Value format examples
{"maximum":[255,80,80],"minimum":[220,0,0],"space":"rgb"}
{"maximum":[75,100,100],"minimum":[45,30,60],"space":"hsv"}
Target colorouter-rangeColor range: RGB or HSV range for the wide target bar.
RequiredDefault: None
Value format examples
{"maximum":[255,80,80],"minimum":[220,0,0],"space":"rgb"}
{"maximum":[75,100,100],"minimum":[45,30,60],"space":"hsv"}
Tracking regionregionRegion: Ratio or pixel rectangle containing the two-color bar.
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}
Minimum cursor widthinner-minimum-widthInteger: Minimum valid cursor cluster width in pixels.
Default availableDefault: 2
Minimum: -9007199254740991
Maximum: 9007199254740991
Value format examples
0
42
Maximum cursor widthinner-maximum-widthInteger: Maximum valid cursor cluster width in pixels; zero selects automatic sizing.
Default availableDefault: 0
Minimum: -9007199254740991
Maximum: 9007199254740991
Value format examples
0
42
Minimum target widthouter-minimum-widthInteger: Minimum valid target cluster width in pixels; zero selects automatic sizing.
Default availableDefault: 0
Minimum: -9007199254740991
Maximum: 9007199254740991
Value format examples
0
42
Band height ratioband-height-ratioNumber: Target scan-band height relative to the region.
Default availableDefault: 0.3
Cursor height ratioband-inner-height-ratioNumber: Target scan-band height relative to the cursor height.
Default availableDefault: 0.85
Cursor confidence weightinner-confidence-weightNumber: Cursor contribution to combined confidence.
Default availableDefault: 0.42
Target confidence weightouter-confidence-weightNumber: Target contribution to combined confidence.
Default availableDefault: 0.58

Data outputs 7

FoundfoundBoolean: Whether both cursor and target clusters are valid.
Cursor Xinner-xNumber: Cursor center X in source-image pixels.
Target Xouter-xNumber: Target center X in source-image pixels.
Target widthouter-widthNumber: Target cluster width in pixels.
ConfidenceconfidenceNumber: Combined detection confidence.
Cursor pixelsinner-pixelsInteger: Pixels matching the cursor range.
Minimum: -9007199254740991
Maximum: 9007199254740991
Value format examples
0
42
Target pixelsouter-pixelsInteger: Pixels matching the target range.
Minimum: -9007199254740991
Maximum: 9007199254740991
Value format examples
0
42

Version and node identity

Version 1.0.0

sha256:5c4a5144e1508fc53c7bf0d3457e2700a94ee748c1ac6df1ff67f2bb851c1fce