Border following algorithm

1. What is the basic concept behind boundary following algorithm?
2. What is boundary following in image processing?
3. What is square tracing algorithm?
4. What is boundary in digital image processing?

What is the basic concept behind boundary following algorithm?

The basic idea behind the chain code is that each boundary pixel of an object has an adjacent boundary pixel neighbor whose direction from the given boundary pixel can be specified by a unique number between 0 and 7 (8-connectivity neighborhood).

What is boundary following in image processing?

Also known as border following or boundary following; contour tracing is a technique that is applied to digital images in order to extract their boundary. As a result, an important question arises: What is the "boundary" of a given digital image?

What is square tracing algorithm?

Given a 4-connected pattern and background, the square tracing algorithm will trace the whole boundary i.e. contour, of the pattern and will stop after tracing the boundary once i.e. it will not trace it again since when it reaches the start boundary edge for a second time, it will enter it in the same way it did the ...

What is boundary in digital image processing?

A boundary is a contour in the image plane that represents a change in pixel ownership from one object or surface to another [9]. Real world images are processed via a computerized visual system (similar to that of humans) in order to produce boundaries.