Matches in SemOpenAlex for { <https://semopenalex.org/work/W2010596265> ?p ?o ?g. }
Showing items 1 to 58 of
58
with 100 items per page.
- W2010596265 abstract "A fast algorithm is presented in this paper to restore non uniform background in astronomical images with starlike or contrasted objects. The digitized image is divided into adjacent squares of equal area of (2n x 2n)pixels. A definition of the local contrast measure is given. For a fixed area the histogram of local contrast measures is established for the whole image. The influence of image characteristics (background structure, extended sources, starlike objects, film defects, etc...) on the shape of this histogram is discussed. It is shown that a threshold may be found on this histogram to select the background areas. From these areas we are able to determine the background level over the entire image. Some typical astronomical applications show that the background is estimated with accuracy and that film defects may be removed without damage. With this algorithm, and unlike the median algorithm, the restored background is not biased even in the neighborhood of the removed objects. However, sharp edges in the background itself are smoothed. Experience shows that this algorithm is easy to use; it has been implemented on a 16 bit minicomputer." @default.
- W2010596265 created "2016-06-24" @default.
- W2010596265 creator A5045859215 @default.
- W2010596265 creator A5075032042 @default.
- W2010596265 date "1983-10-26" @default.
- W2010596265 modified "2023-09-23" @default.
- W2010596265 title "<title>Background Restitution In An Astronomical Image Using An Histogram Of Local Contrast</title>" @default.
- W2010596265 doi "https://doi.org/10.1117/12.935337" @default.
- W2010596265 hasPublicationYear "1983" @default.
- W2010596265 type Work @default.
- W2010596265 sameAs 2010596265 @default.
- W2010596265 citedByCount "0" @default.
- W2010596265 crossrefType "proceedings-article" @default.
- W2010596265 hasAuthorship W2010596265A5045859215 @default.
- W2010596265 hasAuthorship W2010596265A5075032042 @default.
- W2010596265 hasConcept C11413529 @default.
- W2010596265 hasConcept C115961682 @default.
- W2010596265 hasConcept C127449775 @default.
- W2010596265 hasConcept C136943445 @default.
- W2010596265 hasConcept C153180895 @default.
- W2010596265 hasConcept C154945302 @default.
- W2010596265 hasConcept C160633673 @default.
- W2010596265 hasConcept C2776502983 @default.
- W2010596265 hasConcept C30387639 @default.
- W2010596265 hasConcept C31972630 @default.
- W2010596265 hasConcept C33923547 @default.
- W2010596265 hasConcept C41008148 @default.
- W2010596265 hasConcept C53533937 @default.
- W2010596265 hasConceptScore W2010596265C11413529 @default.
- W2010596265 hasConceptScore W2010596265C115961682 @default.
- W2010596265 hasConceptScore W2010596265C127449775 @default.
- W2010596265 hasConceptScore W2010596265C136943445 @default.
- W2010596265 hasConceptScore W2010596265C153180895 @default.
- W2010596265 hasConceptScore W2010596265C154945302 @default.
- W2010596265 hasConceptScore W2010596265C160633673 @default.
- W2010596265 hasConceptScore W2010596265C2776502983 @default.
- W2010596265 hasConceptScore W2010596265C30387639 @default.
- W2010596265 hasConceptScore W2010596265C31972630 @default.
- W2010596265 hasConceptScore W2010596265C33923547 @default.
- W2010596265 hasConceptScore W2010596265C41008148 @default.
- W2010596265 hasConceptScore W2010596265C53533937 @default.
- W2010596265 hasLocation W20105962651 @default.
- W2010596265 hasOpenAccess W2010596265 @default.
- W2010596265 hasPrimaryLocation W20105962651 @default.
- W2010596265 hasRelatedWork W121273120 @default.
- W2010596265 hasRelatedWork W1964281796 @default.
- W2010596265 hasRelatedWork W1983610137 @default.
- W2010596265 hasRelatedWork W1986586280 @default.
- W2010596265 hasRelatedWork W2016701876 @default.
- W2010596265 hasRelatedWork W2100291266 @default.
- W2010596265 hasRelatedWork W2131911629 @default.
- W2010596265 hasRelatedWork W288117609 @default.
- W2010596265 hasRelatedWork W3200511542 @default.
- W2010596265 hasRelatedWork W4206362618 @default.
- W2010596265 isParatext "false" @default.
- W2010596265 isRetracted "false" @default.
- W2010596265 magId "2010596265" @default.
- W2010596265 workType "article" @default.