手法を比較

	イメージ形態学演算	ブロブ検出	輪郭解析
分野	コンピュータビジョン	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	Machine learning
提唱年	1982	1998	1985
提唱者	Jean Serra	Tony Lindeberg	Satoshi Suzuki and Keiichi Abe
種類	Set theory and topological image processing	Multi-scale feature detection	Shape and contour analysis
原典	Serra, J. (1982). Image Analysis and Mathematical Morphology. Academic Press.	Lindeberg, T. (1998). Feature detection with automatic scale selection. International Journal of Computer Vision, 30(2), 79–116.	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.
別名	Mathematical morphology, Morphological filtering	Connected component analysis, Region-based detection	Edge-based contours, Boundary analysis
関連	5	5	5
概要	Morphological image processing, introduced by Jean Serra in 1982, is a technique based on set theory that reshapes and analyzes image regions using geometric structuring elements. Core operations include erosion and dilation, which can be combined into more complex operations like opening and closing, enabling noise removal, edge detection, and object analysis.	Blob detection is a technique for identifying regions of interest (blobs)—connected, homogeneous areas that differ from their surroundings—at multiple scales. Introduced by Lindeberg in the context of scale-space theory, blob detection automatically finds and characterizes circular or elliptical objects without requiring a priori knowledge of their size.	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.