Blob Extraction

Hey, can anyone help me with the BLOB extraction(filtering) and tracking it through centroid? I am using bwmoroph() to extract it. But I am not getting exactly filter required BLOB. Some disturbance remains. If anyone has code for the BLOB extraction and centroid finding it will be nice. Any kind of help is appreciable.

Answer 1

[Image Analyst]

See my image segmentation tutorial: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862 It does this.