Active contour matlab

1. What is active contour method?
2. How to use watershed function in Matlab?
3. What is snake algorithm?
4. What is the purpose of morphological snakes in image processing?

What is active contour method?

The active contours technique, also called snakes, is an iterative region-growing image segmentation algorithm. Using the active contour algorithm, you specify initial curves on an image and then use the activecontour function to evolve the curves towards object boundaries.

How to use watershed function in Matlab?

The watershed transform can be used to segment contiguous regions of interest into distinct objects. L = watershed( A ) returns a label matrix L that identifies the watershed regions of the input matrix A . L = watershed( A , conn ) specifies the connectivity to be used in the watershed computation.

What is snake algorithm?

Snakes Algorithm using active Edge contour model:

In snakes algorithm we try to move snake in a direction where energy is minimum. - Initialization of contour points. - The behavior of the snake is caused by an external energy term that in this case determines that the snake feels attracted to object boundaries.

What is the purpose of morphological snakes in image processing?

The Morphological Snakes are a family of related methods for image-guided evolution of curves and surfaces represented as a level-set of an embedding function. They have application in several computer vision areas, such as tracking and image segmentation.