
| At The Close, At Sign, At Risk | |
| At-Risk Rules, Attachment, Attained Age |
noun
Definition: beginning
Antonyms: closing, conclusion, ending, finish
n
Definition: chance
Antonyms: misfortune
n
Definition: gap, hole
Antonyms: closing, closure, solid
An aperture, orifice or open space.

In mathematical morphology, opening is the dilation of the erosion of a set A by a structuring element B:

where
and
denote erosion and dilation, respectively.
Together with closing, the opening serves in computer vision and image processing as a basic workhorse of morphological noise removal. Opening removes small objects from the foreground (usually taken as the dark pixels) of an image, placing them in the background, while closing removes small holes in the foreground, changing small islands of background into foreground. These techniques can also be used to find specific shapes in an image. Opening can be used to find things into which a specific structuring element can fit (edges, corners, ...).
One can think of B sweeping around the inside of the boundary of A, so that it does not extend beyond the boundary, and shaping the A boundary around the boundary of the element.
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Contents
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, then
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, where
denotes closing.| This computer graphics-related article is a stub. You can help Wikipedia by expanding it. |
| This computer science article is a stub. You can help Wikipedia by expanding it. |
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Dansk (Danish)
n. - åbning, hul, indledning, lovende mulighed, udvej
adj. - åbnings-, indledende, indlednings-, begyndelses-, første
idioms:
Nederlands (Dutch)
opening, gat, aanhef, afzetgebied, vacature, begin(-)
Français (French)
n. - début, ouverture, inauguration, trouée, (gén) occasion, (Comm) débouché, créneau, marché, poste (vacant), possibilité de travail, ouverture (des jeux)
adj. - premier (un chapitre, une scène), préliminaire (une remarque), (Fin) de départ, d'ouverture (à la Bourse), premier (un mouvement, un tir)
idioms:
Deutsch (German)
n. - (Er)öffnen, Öffnung, Möglichkeit, Eröffnung, freie Stelle
adj. - Öffnungs...
idioms:
Ελληνική (Greek)
n. - διάνοιξη, άνοιγμα, κενό, οπή, κούφωμα, ρωγμή, τρύπα, αρχή, έναρξη, ξεκίνημα, ευκαιρία, χηρεύουσα, κενή θέση
idioms:
Italiano (Italian)
apertura, sbocco, opportunità
idioms:
Português (Portuguese)
n. - abertura (f)
idioms:
Русский (Russian)
щель, открытие, ниша, вакансия
idioms:
Español (Spanish)
n. - abertura, grieta, brecha, claro, apertura, comienzo, principio, estreno, inauguración, oportunidad, vacante
adj. - primero, que empieza
idioms:
Svenska (Swedish)
n. - öppnande
中文(简体)(Chinese (Simplified))
开始, 开会, 开头, 开始的部分, 开始的, 开幕的
idioms:
中文(繁體)(Chinese (Traditional))
n. - 開始, 開會, 開頭, 開始的部分
adj. - 開始的, 開幕的
idioms:
한국어 (Korean)
n. - 개방, 통로, 광장, 돈벌이
adj. - 시작의
日本語 (Japanese)
n. - 開くこと, 開始, 序幕, 空き, 空き地, 広場, 就職口, もうけ口, 開口, 空席, 穴, 欠員
adj. - 始めの, 開始の
idioms:
العربيه (Arabic)
(الاسم) افتتاح, فرصه
עברית (Hebrew)
n. - פתיחה, פתח, משרה פנויה, פרצה, סיכוי, הזדמנות
adj. - פותח, ראשון, תחילי
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