Find Peaks in a Histogram

anonymous — Mon, 24 Dec 2007 16:43:47 -0500

Hey guys,

I am trying to find the peaks of a Histogram's gray scale picture, using
matlab. A peak is the value in Histogram that is bigger than it's closer 2
values left and right. Any ideas?

Re: Find Peaks in a Histogram

Roger Stafford — Sun, 23 Dec 2007 18:10:26 -0500

"anonymous" <arisl@otenet.gr> wrote in message <fkm3et$dv8
$1@mouse.otenet.gr>...
> I am trying to find the peaks of a Histogram's gray scale picture, using
> matlab. A peak is the value in Histogram that is bigger than it's closer 2
> values left and right. Any ideas?
--------
If h is a row vector of your (histogram) values, (with at least two values) do this:

hl = [h(2:end),h(end-1)];
hr = [h(2),h(1:end-1)];
p = (h > hl) && (h > hr);

Roger Stafford

MATLAB Central Newsreader - Find Peaks in a Histogram

Find Peaks in a Histogram

Re: Find Peaks in a Histogram