Polyscale gradients residual demosaicking
Image acquisition through a single-sensor camera captures only a fraction of the image data renowned as the raw image. It uses the colour filter array to acquire only a single colour channel in each pixel location. The reconstruction of the so called raw image into a full colour image is known as de...
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| Format: | Article |
| Language: | English |
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Springer
2021-03-01
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| Series: | Journal of King Saud University: Computer and Information Sciences |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1319157817305554 |
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| author | Bo Xu Xiaoyu Wang Jiao Zhang Asghar A. Razzaqi |
| author_facet | Bo Xu Xiaoyu Wang Jiao Zhang Asghar A. Razzaqi |
| author_sort | Bo Xu |
| collection | DOAJ |
| description | Image acquisition through a single-sensor camera captures only a fraction of the image data renowned as the raw image. It uses the colour filter array to acquire only a single colour channel in each pixel location. The reconstruction of the so called raw image into a full colour image is known as demosaicking or interpolation. Demosaicking is a significant process in the imaging pipeline. It implicates the reconstruction of the missing two colour channels from an incomplete image obtained from a single-sensor digital camera. This paper proposes a new approach of combining polyscale gradients algorithm and residual demosaicking. The first phase utilizes the gradients at different scales and residual demosaicking (RD) involves subtraction of the pragmatic and the provisional pixel values in the residual province takes place in the second phase. The experimental results show that the proposed demosaicking algorithm outperforms the conventional demosaicking algorithms for the Kodak and McMaster (McM) dataset. |
| format | Article |
| id | doaj-art-696eb4db05354154a48d7e2f2a738262 |
| institution | Kabale University |
| issn | 1319-1578 |
| language | English |
| publishDate | 2021-03-01 |
| publisher | Springer |
| record_format | Article |
| series | Journal of King Saud University: Computer and Information Sciences |
| spelling | doaj-art-696eb4db05354154a48d7e2f2a7382622025-08-20T03:49:08ZengSpringerJournal of King Saud University: Computer and Information Sciences1319-15782021-03-0133334035010.1016/j.jksuci.2018.02.014Polyscale gradients residual demosaickingBo Xu0Xiaoyu Wang1Jiao Zhang2Asghar A. Razzaqi3Department of Automation, Harbin Engineering University, Harbin 150001, ChinaDepartment of Automation, Harbin Engineering University, Harbin 150001, China; Corresponding author. Tel.: +86 157 7450 1482.Department of Automation, Harbin Engineering University, Harbin 150001, ChinaDepartment of Automation, Harbin Engineering University, Harbin 150001, ChinaImage acquisition through a single-sensor camera captures only a fraction of the image data renowned as the raw image. It uses the colour filter array to acquire only a single colour channel in each pixel location. The reconstruction of the so called raw image into a full colour image is known as demosaicking or interpolation. Demosaicking is a significant process in the imaging pipeline. It implicates the reconstruction of the missing two colour channels from an incomplete image obtained from a single-sensor digital camera. This paper proposes a new approach of combining polyscale gradients algorithm and residual demosaicking. The first phase utilizes the gradients at different scales and residual demosaicking (RD) involves subtraction of the pragmatic and the provisional pixel values in the residual province takes place in the second phase. The experimental results show that the proposed demosaicking algorithm outperforms the conventional demosaicking algorithms for the Kodak and McMaster (McM) dataset.http://www.sciencedirect.com/science/article/pii/S1319157817305554Bayer colour filter arrayPolyscale gradientsResidual demosaicking |
| spellingShingle | Bo Xu Xiaoyu Wang Jiao Zhang Asghar A. Razzaqi Polyscale gradients residual demosaicking Journal of King Saud University: Computer and Information Sciences Bayer colour filter array Polyscale gradients Residual demosaicking |
| title | Polyscale gradients residual demosaicking |
| title_full | Polyscale gradients residual demosaicking |
| title_fullStr | Polyscale gradients residual demosaicking |
| title_full_unstemmed | Polyscale gradients residual demosaicking |
| title_short | Polyscale gradients residual demosaicking |
| title_sort | polyscale gradients residual demosaicking |
| topic | Bayer colour filter array Polyscale gradients Residual demosaicking |
| url | http://www.sciencedirect.com/science/article/pii/S1319157817305554 |
| work_keys_str_mv | AT boxu polyscalegradientsresidualdemosaicking AT xiaoyuwang polyscalegradientsresidualdemosaicking AT jiaozhang polyscalegradientsresidualdemosaicking AT asghararazzaqi polyscalegradientsresidualdemosaicking |