Using islocalmin() and islocalmax(), I get a logical array containing the information of minima and maxima of an oscillating data structure (curvature of a contour). Now I define two other logical arrays that provide location of curvatures above a threshold. Multiplying it with the min and max arrays, I get information on minima and maxima above the threshold.
But I end up with minima where between two minima there is no maximum above threshold. I want to identify such minima and set the minimum having lower magnitude to zero, so that between two minima I have atleast one maximum value.
Once I do this, between two minima, I identify all maxima and select the one having the highest value. This way I finally have an array containing information of oscillating minima and maxima (one minimum then next maximum, the next minimum, and so on).
