Function Reference
— Function File: [imout, idx] = bwselect(im, cols, rows, connect)

Select connected regions in a binary image.

im
binary input image
[cols, rows]
vectors of starting points (x,y)
connect
connectedness 4 or 8. default is 8
imout
the image of all objects in image im that overlap pixels in (cols,rows)
idx
index of pixels in imout