function cent=FastPeakFind(d, threshold, filt ,edg, fid)

Analyzes noisy 2D images , finds x-y positions of peaks to 1 pixel accuracy

The code was meant to be as fast as possible, so I kept it pretty basic.

The code assumes that the peaks are relatively sparse, test whether there

is too much pile up and set threshold or user defined filter accordingly.

-function　cent=FastPeakFind(d, threshold, filt ,edg, fid)

　Analyzes noisy 2D images , finds x-y positions of peaks to 1 pixel accuracy

　The code was meant to be as fast as possible, so I kept it pretty basic.

　The code assumes that the peaks are relatively sparse, test whether there

　is too much pile up and set threshold or user defined filter accordingly.