Reunakuvasta

Reunakuvasta is a Finnish term used in some scientific and technical contexts to refer to a boundary or edge image. The word combines reuna (edge, boundary) with kuva (image) and the elative suffix -sta, yielding "from the edge image" or "the edge image" depending on sentence structure. The term does not designate a single, universal concept but is used to describe representations that emphasize the outlines or borders of objects, regions, or scenes rather than interior details.

In image processing and computer vision, an edge image is typically produced by applying edge-detection operators (for example Sobel, Prewitt or Canny) to an input image. The resulting edge map highlights intensity transitions that correspond to object boundaries, and can be used for tasks such as segmentation, shape analysis, or object recognition. In geographical information systems (GIS) and remote sensing, boundary delineations between regions or land-use classes can likewise be treated as an edge image or boundary map, sometimes described in Finnish with terms like reunan kuva or reunakartta depending on context.

Usage notes: because Finnish technical vocabulary often borrows from general terms like "edge image" (reunakuvasta is not a fixed lemma in all dictionaries), readers should consult discipline-specific sources for exact meaning and preferred terminology in a given field.

See also: edge detection, contour, boundary map, silhouette, boundary representation.