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	輪郭解析	分水嶺セグメンテーション
分野	コンピュータビジョン	コンピュータビジョン
系統	Machine learning	Machine learning
提唱年	1985	1979
提唱者	Satoshi Suzuki and Keiichi Abe	Serge Beucher and Christian Lantuéjoul
種類	Shape and contour analysis	Morphological image segmentation
原典	Suzuki, S., & Abe, K. (1985). Topological structural analysis of digitized binary images by border following. Computer Vision, Graphics, and Image Processing, 30(1), 32–46.	Meyer, F. (1994). Topographic distance and watershed lines. Signal Processing, 38(1), 113–125.
別名	Edge-based contours, Boundary analysis	Watershed transform, Water shedding segmentation
関連	5	5
概要	Contour analysis is the process of detecting and analyzing the boundaries of objects in images by identifying connected edges and extracting shape information. The Suzuki-Abe algorithm provides an efficient method for finding contours in binary images, enabling shape-based object classification and segmentation.	Watershed segmentation is a morphological image processing technique that automatically segments an image into distinct regions by treating image intensity as a topographic landscape where each object corresponds to a valley. Introduced by Beucher and Lantuéjoul in 1979 and refined by Meyer, the watershed algorithm is particularly effective for separating touching or overlapping objects.