| 太湖水面照片中蓝藻色调的提取 |
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| 引用本文： | 陈利雄,胡勇,巩彩兰.太湖水面照片中蓝藻色调的提取[J].上海海事大学学报,2011,32(2):77-82. |
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| 作者姓名： | 陈利雄 胡勇 巩彩兰 |
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| 作者单位： | 1. 上海海事大学商船学院,上海201306;中国科学院上海技术物理研究所,上海200083;中国科学院研究生院,北京100039
2. 中国科学院上海技术物理研究所,上海,200083 |
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| 基金项目： | 上海市教育委员会科研创新项目（09YZ247）；上海海事大学校基金（20110028） |
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| 摘 要： | 针对在不同水体光谱采集方式下导出的色调并非绝对稳定及其合理性得不到验证的问题,提出利用同时获取太湖水体的数码照片提取色调信息来检验光谱导出色调的方法,为了保证数码相机大视场与光谱仪小视场的一致性,截取照片中尽可能包含蓝藻的256×256像素区域,再分割出蓝、绿通道差值较大的部分像素点提取色调,结果显示:如果是同一相机摄...
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| 关 键 词： | 蓝藻 光谱 数码照片 色调 太湖 |
| 收稿时间： | 9/8/2010 3:23:49 PM |
| 修稿时间： | 2010/12/3 0:00:00 |
Extraction of cyanobacteria hue from photo of Taihu Lake surface |
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| CHEN Lixiong,HU Yong and.Extraction of cyanobacteria hue from photo of Taihu Lake surface[J].Journal of Shanghai Maritime University,2011,32(2):77-82. |
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| Authors: | CHEN Lixiong HU Yong and |
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| Institution: | Merchant Marine College; Shanghai Maritime University;,Shanghai Institute of Technical Physics; Chinese Academy of Sciences and 1 |
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| Abstract: | Because the derived hue by different water spectral collection methods is not absolutely stable and its rationality is difficult to be verified, a way of testing hue derived from spectrum through extracting hue information from digital photos of water in TaihuLake is proposed. To ensure the consistency of digital camera large field and spectrometer small field, the 256×256 pixel regions of photos are cut out including cyanobacteria as much as possible. Hue is extracted from the pixels with larger difference between blue and green channel. The result shows that hue from digital photo and that from spectrum have high relevance when using the same camera. The rationality of hue
derived from spectrum can be verified by extracting hue from digital photos, and the reliability can also be proved by photos directly. |
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| Keywords: | cyanobacteria spectrum digital photo hue Taihu Lake |
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