Dear colleagues, my questions are rather simple and I hope, someone will answer. I looked through the forum archive and found analogous post about the meaning of the watershed options. There David recommended reading manual in reply. I've read manual several times, but misunderstanding remains. The only option which is clear for me is the Threshold - it cuts the noise on the chosen level. More or less Drop size parameter understandable - the higher its value, the larger lakes on the image. But it is measured in percents. What are these percents of? Variations of Number of steps in Segmentation section also result in the sizes of the lakes. So I've concluded, that it is the amount of drops put in each chosen grain. At last, Number of steps in Grain location section gives the most unexpected results for me, that indicates my absolute misunderstanding of its meaning. If the initial drops are located at every point of the image, why do large unmasked regions appear, when this parameter is high? If this is the length of each drop path, the result again is very strange: the drops not always concentrate in the regions which are obvious extremums of the image, so, some grains remain unmasked...
I specially wrote my reasoning in hope somebody at least comments my words, if nobody has time for detailed explanations. Thank you! Daria Khanukaeva, Gubkin Russian State University of Oil and Gas, Department of Higher Mathematics. ------------------------------------------------------------------------------ AlienVault Unified Security Management (USM) platform delivers complete security visibility with the essential security capabilities. Easily and efficiently configure, manage, and operate all of your security controls from a single console and one unified framework. Download a free trial. http://p.sf.net/sfu/alienvault_d2d _______________________________________________ Gwyddion-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gwyddion-users
