Fast contrast enhancement by adaptive pixel value stretching
In this article, we propose a fast and effective method for digital image contrast enhancement. The gray-level dynamic range of contrast-distorted images is extended maximally via adaptive pixel value stretching. The quantity of saturated pixels is set intelligently according to the perceptual brigh...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-08-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147718793803 |
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| _version_ | 1832547285790097408 |
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| author | Gang Cao Huawei Tian Lifang Yu Xianglin Huang |
| author_facet | Gang Cao Huawei Tian Lifang Yu Xianglin Huang |
| author_sort | Gang Cao |
| collection | DOAJ |
| description | In this article, we propose a fast and effective method for digital image contrast enhancement. The gray-level dynamic range of contrast-distorted images is extended maximally via adaptive pixel value stretching. The quantity of saturated pixels is set intelligently according to the perceptual brightness of global images. Adaptive gamma correction is also novelly used to recover the normal luminance in enhancing dimmed images. Different from prior methods, our proposed technique could be enforced automatically without complex manual parameter adjustment per image. Both qualitative and quantitative performance evaluation results show that, comparing with some recent influential contrast enhancement techniques, our proposed method achieves comparative or better enhancement quality at a surprisingly lower computational cost. Besides general computer applications, such merit should also be valuable in low-power scenarios, such as the imaging pipelines used in small mobile terminals and visual sensor network. |
| format | Article |
| id | doaj-art-5a480336577345feb03dea90c588f7e4 |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2018-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-5a480336577345feb03dea90c588f7e42025-02-03T06:45:24ZengWileyInternational Journal of Distributed Sensor Networks1550-14772018-08-011410.1177/1550147718793803Fast contrast enhancement by adaptive pixel value stretchingGang Cao0Huawei Tian1Lifang Yu2Xianglin Huang3School of Computer and Cyberspace Security, Communication University of China, Beijing, ChinaCollege of Criminal Investigation and Counter Terrorism, People’s Public Security University of China, Beijing, ChinaBeijing Key Laboratory of Signal and Information Processing for High-end Printing Equipments, Beijing Institute of Graphic Communication, Beijing, ChinaSchool of Computer and Cyberspace Security, Communication University of China, Beijing, ChinaIn this article, we propose a fast and effective method for digital image contrast enhancement. The gray-level dynamic range of contrast-distorted images is extended maximally via adaptive pixel value stretching. The quantity of saturated pixels is set intelligently according to the perceptual brightness of global images. Adaptive gamma correction is also novelly used to recover the normal luminance in enhancing dimmed images. Different from prior methods, our proposed technique could be enforced automatically without complex manual parameter adjustment per image. Both qualitative and quantitative performance evaluation results show that, comparing with some recent influential contrast enhancement techniques, our proposed method achieves comparative or better enhancement quality at a surprisingly lower computational cost. Besides general computer applications, such merit should also be valuable in low-power scenarios, such as the imaging pipelines used in small mobile terminals and visual sensor network.https://doi.org/10.1177/1550147718793803 |
| spellingShingle | Gang Cao Huawei Tian Lifang Yu Xianglin Huang Fast contrast enhancement by adaptive pixel value stretching International Journal of Distributed Sensor Networks |
| title | Fast contrast enhancement by adaptive pixel value stretching |
| title_full | Fast contrast enhancement by adaptive pixel value stretching |
| title_fullStr | Fast contrast enhancement by adaptive pixel value stretching |
| title_full_unstemmed | Fast contrast enhancement by adaptive pixel value stretching |
| title_short | Fast contrast enhancement by adaptive pixel value stretching |
| title_sort | fast contrast enhancement by adaptive pixel value stretching |
| url | https://doi.org/10.1177/1550147718793803 |
| work_keys_str_mv | AT gangcao fastcontrastenhancementbyadaptivepixelvaluestretching AT huaweitian fastcontrastenhancementbyadaptivepixelvaluestretching AT lifangyu fastcontrastenhancementbyadaptivepixelvaluestretching AT xianglinhuang fastcontrastenhancementbyadaptivepixelvaluestretching |