A Color Consistency Processing Method for HY-1C Images of Antarctica
The HY-1C satellite, as part of China’s optical satellite constellation for global ocean monitoring, monitors the ocean and coastal environment by the three broad visible bands of the Coastal Zone Imager (CZI) instrument. However, as a result of the sensor instrument noise, the atmospheric environme...
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ftdoajarticles:oai:doaj.org/article:cb1f6bf997b44d00a11e6f32031894d7 2023-05-15T13:56:14+02:00 A Color Consistency Processing Method for HY-1C Images of Antarctica Zhijiang Li Haonan Zhu Chunxia Zhou Liqin Cao Yanfei Zhong Tao Zeng Jianqiang Liu 2020-04-01T00:00:00Z https://doi.org/10.3390/rs12071143 https://doaj.org/article/cb1f6bf997b44d00a11e6f32031894d7 EN eng MDPI AG https://www.mdpi.com/2072-4292/12/7/1143 https://doaj.org/toc/2072-4292 doi:10.3390/rs12071143 2072-4292 https://doaj.org/article/cb1f6bf997b44d00a11e6f32031894d7 Remote Sensing, Vol 12, Iss 1143, p 1143 (2020) HY-1C satellite images Antarctica mosaic preprocessing color consistency Science Q article 2020 ftdoajarticles https://doi.org/10.3390/rs12071143 2022-12-31T10:20:00Z The HY-1C satellite, as part of China’s optical satellite constellation for global ocean monitoring, monitors the ocean and coastal environment by the three broad visible bands of the Coastal Zone Imager (CZI) instrument. However, as a result of the sensor instrument noise, the atmospheric environment during imaging, and the shooting angle, the satellite images often show uneven illumination and inconsistent color between neighboring images. In this paper, according to the characteristics of the HY-1C CZI instrument, we propose a color consistency processing framework for coastal zone images of Antarctica. First of all, the high-frequency and low-frequency information of the image is separated by a statistical filter with simple clustering. The uneven lighting is then replaced by artificial lighting, which is globally uniform. Finally, the color difference between images is corrected by a color transfer method. In order to evaluate the color consistency results quantitatively, a new quantitative evaluation method is proposed. The experimental results for the coastal zone images of Antarctica show that the new processing framework can effectively eliminate the unevenness in the lighting and color. The mosaic results show a good performance in consistent lighting and tones, and the lack of visible mosaic lines proves the effectiveness of the proposed method. The quantitative evaluation analysis confirms the superiority of the proposed method over the Wallis method. Article in Journal/Newspaper Antarc* Antarctica Directory of Open Access Journals: DOAJ Articles Remote Sensing 12 7 1143 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
HY-1C satellite images Antarctica mosaic preprocessing color consistency Science Q |
spellingShingle |
HY-1C satellite images Antarctica mosaic preprocessing color consistency Science Q Zhijiang Li Haonan Zhu Chunxia Zhou Liqin Cao Yanfei Zhong Tao Zeng Jianqiang Liu A Color Consistency Processing Method for HY-1C Images of Antarctica |
topic_facet |
HY-1C satellite images Antarctica mosaic preprocessing color consistency Science Q |
description |
The HY-1C satellite, as part of China’s optical satellite constellation for global ocean monitoring, monitors the ocean and coastal environment by the three broad visible bands of the Coastal Zone Imager (CZI) instrument. However, as a result of the sensor instrument noise, the atmospheric environment during imaging, and the shooting angle, the satellite images often show uneven illumination and inconsistent color between neighboring images. In this paper, according to the characteristics of the HY-1C CZI instrument, we propose a color consistency processing framework for coastal zone images of Antarctica. First of all, the high-frequency and low-frequency information of the image is separated by a statistical filter with simple clustering. The uneven lighting is then replaced by artificial lighting, which is globally uniform. Finally, the color difference between images is corrected by a color transfer method. In order to evaluate the color consistency results quantitatively, a new quantitative evaluation method is proposed. The experimental results for the coastal zone images of Antarctica show that the new processing framework can effectively eliminate the unevenness in the lighting and color. The mosaic results show a good performance in consistent lighting and tones, and the lack of visible mosaic lines proves the effectiveness of the proposed method. The quantitative evaluation analysis confirms the superiority of the proposed method over the Wallis method. |
format |
Article in Journal/Newspaper |
author |
Zhijiang Li Haonan Zhu Chunxia Zhou Liqin Cao Yanfei Zhong Tao Zeng Jianqiang Liu |
author_facet |
Zhijiang Li Haonan Zhu Chunxia Zhou Liqin Cao Yanfei Zhong Tao Zeng Jianqiang Liu |
author_sort |
Zhijiang Li |
title |
A Color Consistency Processing Method for HY-1C Images of Antarctica |
title_short |
A Color Consistency Processing Method for HY-1C Images of Antarctica |
title_full |
A Color Consistency Processing Method for HY-1C Images of Antarctica |
title_fullStr |
A Color Consistency Processing Method for HY-1C Images of Antarctica |
title_full_unstemmed |
A Color Consistency Processing Method for HY-1C Images of Antarctica |
title_sort |
color consistency processing method for hy-1c images of antarctica |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/rs12071143 https://doaj.org/article/cb1f6bf997b44d00a11e6f32031894d7 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Remote Sensing, Vol 12, Iss 1143, p 1143 (2020) |
op_relation |
https://www.mdpi.com/2072-4292/12/7/1143 https://doaj.org/toc/2072-4292 doi:10.3390/rs12071143 2072-4292 https://doaj.org/article/cb1f6bf997b44d00a11e6f32031894d7 |
op_doi |
https://doi.org/10.3390/rs12071143 |
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Remote Sensing |
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12 |
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7 |
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1143 |
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