lineedge
Lineedge is a compound term that appears in several technical contexts to denote the boundary or interface associated with a linear element. In geometry, lineedge refers to the boundary points of a line segment, including endpoints, and to how a line intersects with a region or polygon, such as where it meets the boundary of a shape. In materials science and microfabrication, line edge quality is a concern for features defined by lithography or milling; line-edge roughness (LER) describes irregularities along the edge of a line, which can affect dimensions and device performance. In image processing, a lineedge is a detected edge that corresponds to a linear feature, and line-edge detection is part of feature extraction used for object recognition or scene understanding. In design and typography, the term may be used informally to describe the termination of a stroke or the alignment of line endpoints within a letter or graphic element.
Lineedge as a term is generic and its precise meaning depends on domain conventions. It is typically