RGB 합성영상을 이용한 적조탐지 기법 연구

A Study on Red Tide Detection Using RGB Composite Image

In this study, we propose a method of separating red pixels by producing RGB composite image using GOCI (Geostationary Ocean Color Imager) image of COMS (Communication, Ocean and Meteorological Satellite). The RGB composite images were generated by applying the additive color mixture after representing the computational result of the optical characteristics of the red tide zone in red, green, and blue images. In the case of red tide, all of the computation results of the three formulas made using optical characteristics are used as high pixels, and they are shown in white on the composite image. Comparisons of red tide pixels in RGB composite images and red tides data of the National Fisheries Research and Development Institute showed similar distributions, and one of three expressions tended to be underestimated in turbid sea water such as Yeoja Bay. In order to improve the quality of synthesized images, further study on the optical characteristics of the red tide area is needed, and it is expected that a higher level of detection ability can be secured by improving the formula causing underestimation.