Detect Points

Block Category: Detection

Input Image Format

Input Image Requirements: Skeleton

Description: The Detect Points block detects branch or end points in an image.

When the input is skeletonized, the entire image is in binary form. Detect Points scans the image and when it detects a non-zero pixel, it evaluates the pixel’s 3 x 3 neighborhood as follows:

      If less than two non-zero pixels are detected, the pixel evaluated is an end point

      If more than two non-zero pixels are detected, the pixel evaluated is a branch point

Branch Point: Detects branching in the image.

End Point: Detects end points in the image.

Example

In this example, branch points are detected and displayed in the skeletonized output image.