Label the largest pixel/voxel group in an image

LABELLARGEST keep the largest N isolated regions in the image

LABELLARGEST keep the largest N isolated regions in the image;
Author: Sheng Yue ([e-mail], [e-mail])
Imperial College London
08-March_2010
Image Processing Toolbox required.

Usage:
[L CC] = LabelLargest(IM,pieces,conn);
L= LabelLargest(IM,pieces,conn);
LabelLargest(IM,pieces,conn);
IM is the input image.
pieces is the regions you want to keep. Default value is 1;
conn is the connectivity defined same as matlab.