ImageCorners

ImageCorners[image] finds corners in image and returns their coordinates.

ImageCorners[image, r] finds corners at a pixel range r.

Examples

Find corners in an image:

img = ExampleData[{"TestImage", "Lena"}];
corners = ImageCorners[img];
HighlightImage[img, corners]

With specific range:

ImageCorners[img, 5]

Please visit the official Wolfram Language Reference for more details.