watershed segmentation

what is watershed?what are the advantages and disadvantages of watershed segmentation?how can we say either it is lossy or lossless process

Answer 1

[David Young]

Good questions, but it's not clear what the link to MATLAB is. Anyway, you could do worse than start with http://en.wikipedia.org/wiki/Watershed_%28image_processing%29, noting the references at the end of the article, and for MATLAB information, you could start here: http://www.mathworks.com/help/images/ref/watershed.html.