著者

Umpei NAGASHIMA Junko KAMBE Toru YAGI Tomoo AOYAMA

出版者

Society of Computer Chemistry, Japan

雑誌

Journal of Computer Chemistry, Japan -International Edition (ISSN:2189048X)

巻号頁・発行日

vol.2, pp.2015-0054, 2016 (Released:2016-09-03)

参考文献数

10

---

An imaging tool is proposed to research marine environment in science teaching. It is for usage of digital cameras in housing underwater. Analyzed format is JPEG, in which RGB intensity is digitized in 8 bits. The intensity relates wavelength dependence in the bandwidth of RGB. We extract information from the dependence, and investigate absorption, scattering, and reflection in the water. Ratio index for wavelength dependence is discussed, which is easy for students to understand. Next, using the idea of the index, Ratio-RGB image is defined and discussed. The image is introduced for visualizing suspended solids in the sea. The environment in the sea is displayed using the Ratio-RGB images. Turbulence of scattering light layers, distribution of fishes, and small marine biology are detected clearly. The approach enables understanding of conditions in the sea visually.