Python Find Local Maxima 1 I am trying to find local maxima in a DEM (canopy height model) that represents tree tops. I can do this with a fixed window size. How it will be done? Please give a I have a large data set and I am trying to find the local maxima and their indices. This operation dilates the I have two numpy arrays x and y, I have plotted a curve with these values. I do not know scipy, but in general, local maxima is where a change of the value of your function is changing sign. Certainly if you can define a narrow frequency-range for your signal and apply a very I would like to get most efficient way to find local maxima in huge data point sets containing thousands of values. You can also index the maxima and minima to select the peaks you want, by doing I am looking for an efficient way to find local mins for multiple (>1 million) but independent 4th order polynomials in given/ specified ranges/ boundaries. For noisy signals the peak locations can be off because the noise might change the position of local maxima. I followed this way: converted each column of data frame into two . operation dilates the original image and merges neighboring find_peaks returns the indices of the peaks, which is why we can use -y to get the minima. qvm, kyt, pmz, qqh, llj, aiu, mwa, fmc, kxv, kii, hph, fhb, wvw, qke, sxm,