Finding duration of peaks??

I have attached a figure in which i have peaks at certain locations each of certain length. I need the duration of each peak in the figure. For example, there are 8 peaks in this figure, but i only need the ones that are of specified length (should neglect the peaks less than specified length). Can someone help me??

Answer 1

[Image Analyst]

Do you have the Image Processing Toolbox? If so, it's two lines of code

measurements = regionprops(logical(yourSignal), 'Area');
allLengths = [measurements.Area];  % Durations (x-widths) of all the peaks.