ridge and valley analysis

См. также в других словарях:

• Ridge detection — The ridges (or the ridge set) of a smooth function of two variables is a set of curves whose points are, loosely speaking, local maxima in at least one dimension. For a function of N variables, its ridges are a set of curves whose points are… …   Wikipedia

• Champlain Valley — Landsat photo of the immediate Lake Champlain region  only part of the much longer drainage basin and overall valley which reaches the Atlantic Ocean north of Nova Scotia via the St. Lawrence Seaway. The Champlain Valley (or more technically …   Wikipedia

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