Brightness preserving image contrast enhancement using weighted mixture of global and local transformation functions
Joint Authors
al-Kabir, Hasan
al-Wadud, Abd Allah
Chae, Oksam
Source
The International Arab Journal of Information Technology
Issue
Vol. 7, Issue 4 (31 Oct. 2010), pp.403-410, 8 p.
Publisher
Publication Date
2010-10-31
Country of Publication
Jordan
No. of Pages
8
Main Subjects
Information Technology and Computer Science
Abstract EN
Transformation functions utilizing the global information content of an input image have been long serving contrast enhancement by stretching the dynamic range of intensity levels.
Other transformation functions focus on local information content to correct image details, such as edges and texture.
In this paper, an effective method for image contrast enhancement is presented with a mapping function, which is a mixture of global and local transformation functions that improve both the brightness and fine details of the input image.
The final mapping function incorporates a local intensity-pair distribution generated expansion function from each image block to control the enhancement of image details that the global transformation function alone may fail to improve.
Contribution from the global transformation function preserves the overall image brightness and contrast stretching.
Experiments show that the proposed method competes well with the existing enhancement methods, both subjectively and quantitatively.
American Psychological Association (APA)
al-Kabir, Hasan& Chae, Oksam& al-Wadud, Abd Allah. 2010. Brightness preserving image contrast enhancement using weighted mixture of global and local transformation functions. The International Arab Journal of Information Technology،Vol. 7, no. 4, pp.403-410.
https://search.emarefa.net/detail/BIM-185100
Modern Language Association (MLA)
al-Kabir, Hasan…[et al.]. Brightness preserving image contrast enhancement using weighted mixture of global and local transformation functions. The International Arab Journal of Information Technology Vol. 7, no. 4 (Oct. 2010), pp.403-410.
https://search.emarefa.net/detail/BIM-185100
American Medical Association (AMA)
al-Kabir, Hasan& Chae, Oksam& al-Wadud, Abd Allah. Brightness preserving image contrast enhancement using weighted mixture of global and local transformation functions. The International Arab Journal of Information Technology. 2010. Vol. 7, no. 4, pp.403-410.
https://search.emarefa.net/detail/BIM-185100
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 408-409
Record ID
BIM-185100