edge filter
Смотреть что такое "edge filter" в других словарях:
Edge detection — is a terminology in image processing and computer vision, particularly in the areas of feature detection and feature extraction, to refer to algorithms which aim at identifying points in a digital image at which the image brightness changes… … Wikipedia
Edge preserving smoothing — is an image processing technique where the edge information is preserved during the smoothing process. It uses non linear operator which is able to remove texture and noise, while keeping edges and corners. The technique is known also as edge and … Wikipedia
Edge enhancement — is a digital image processing filter that improves the apparent sharpness of an image or video. The creation of bright and dark highlights on either side of any line leaves the line looking more contrasted from a distance. The process is most… … Wikipedia
Filter (optics) — Coloured and Neutral Density filters Optical filters are devices which selectively transmit light of different wavelengths, usually implemented as plane glass or plastic devices in the optical path which are either dyed in the mass or have… … Wikipedia
Edge — An edge in common usage denotes a sharp border of a (solid) object.cience and technology* Edge (graph theory), a line segment joining two nodes in a graph * Edge (geometry), a line segment joining two vertices in a polytope * Edge case, a problem … Wikipedia
Edge Change Fraction — Die Edge Change Ratio (Abkürzung ECR, englisch für „Kantenänderungsverhältnis“) ist ein Maß, das die Unterschiedlichkeit zweier aufeinanderfolgender Bilder in einem digitalen Video misst und von Algorithmen zur Schnitterkennung verwendet wird.… … Deutsch Wikipedia
Edge Change Ratio — Die Edge Change Ratio (Abkürzung ECR, englisch für „Kantenänderungsverhältnis“) ist ein Maß, das die Unterschiedlichkeit zweier aufeinanderfolgender Bilder in einem digitalen Video misst und von Algorithmen zur Schnitterkennung verwendet wird.… … Deutsch Wikipedia
Graduated neutral density filter — A graduated neutral density filter, also known as a graduated ND filter, split neutral density filter, or just a graduated filter, is an optical filter that has a variable light transmission. Typically half of the filter is of neutral density… … Wikipedia
Nyquist filter — A Nyquist filter is an electronic filter used in TV receivers to equalize the video characteristics. The filter is named after the Swedish–US engineer Harry Nyquist (1889–1976). Contents 1 VSB 2 Example of a VSB 3 Demodulation problems … Wikipedia
Canny edge detector — The Canny edge detection operator was developed by John F. Canny in 1986 and uses a multi stage algorithm to detect a wide range of edges in images. Most importantly, Canny also produced a computational theory of edge detection explaining why the … Wikipedia
Mechanical filter — Figure 1. A mechanical filter made by the Kokusai Electric Company intended for selecting the narrow 2 kHz bandwidth signals in SSB radio receivers. It operates at 455 kHz, a common IF for these receivers, and is dimensioned 45×15×15 mm ( … Wikipedia
