Real-world algorithm demonstration, applied to a NASA portrait.Image: NASA / Eileen Collins · scikit-image (public domain)View source ↗
Prompt
Apply Shi–Tomasi Corners as a sparse technical overlay, placing small bright green dots at the strongest, well-defined corners and textured junctions. Space markers apart and avoid weak edges, flat surfaces, or dense redundant clusters. Keep the underlying photograph clearly visible. Keep the original subject and composition.
The [smallest eigenvalue2response]of the local structure matrix [selects good points].
Try it out
Compare the score and the distance.
Classification
Calculated image processing result.
Further examples · 7 images
02Epipolar-geometry-church-corner-detection-right-imageA church exterior is shown with red crosses marking specific structural points. These markers identify high-contrast corners and textures where the smallest eigenvalue of the local structure matrix indicates a trackable feature point..gs8 (talk) · CC BY-SA 3.0 · Wikimedia Commons03CornerHandwritten characters are shown before and after corner detection. Red dots identify points of high curvature and junctions, demonstrating how the algorithm isolates unique local features for tracking or analysis.Retardo · Public domain · Wikimedia Commons04Fundamentalmatrix Linkes BildA monochrome street scene contains numerous red markers on building edges and vehicles. These points represent high-contrast corners selected to calculate the fundamental matrix between stereo images.Haldir · Public domain · Wikimedia Commons05Shi–Tomasi Corners, applied to “Brazil Belém Las Docas 02”Cyan circles mark the intersection of beams and furniture edges in this outdoor cafe scene. These markers represent high-contrast corners identified through local structure matrix analysis.Cayambe (photo); processed for the Atlas · CC BY-SA 3.0 · Wikimedia Commons06Shi–Tomasi Corners, applied to “Stone bridge leading to a cemetery surrounded by trees in the compounds of Chion”Points are detected along the railing edges of the stone bridge and the intricate roofline of the temple. The algorithm successfully isolates specific vertices in the complex foliage and architectural geometry.Basile Morin (photo); processed for the Atlas · CC BY-SA 4.0 · Wikimedia Commons07Shi–Tomasi Corners, applied to “Klagenfurt Viktring Quellenstrasse Strom-Verbundnetz 13022010 1580”Keypoints cluster on the sharp junctions of the transmission towers and the roof peak of the house. The effect ignores the low-contrast sky while highlighting structural intersections.Johann Jaritz (photo); processed for the Atlas · CC BY-SA 4.0 · Wikimedia Commons
