apriltag outline extractor

drop image here or click to upload

image should contain at least 2 apriltags

advanced settings ▼

gaussian blur sigma (noise reduction)

1.0

higher values = more blur, smoother edges. 0 = disabled

morphological closing kernel size (connect gaps)

5x5

larger values bridge bigger gaps but may lose fine detail

contour simplification (mm per point)

0.5mm

higher values = fewer points, simpler outline

enable contrast enhancement automatically stretch intensity range for better detection