휴대폰 카메라의 색 재현 연구 : Galaxy note 10과 iPhone 11 Pro를 중심으로

Abstract

This study is a comparative study on camera color reproduction according to mobile phone model. I want to analyze color reproduction of mobile phone camera through color difference, color expression and chroma. With the performance of mobile phone cameras advancing in many ways, the most representative competing brands are Samsung and Apple. The two brands, competing for the top spot in sales and market share in the smartphone market, are fiercely competing, drawing public attention whenever new models are released. In this study, Galaxy Note 10 and iPhone 11 Pro, which were released at a similar time (August, September, 2019) and have the same image sensor size, the number of pixel, and pixel size for wide-angle (basic) cameras and use a total of three lenses (wide-angle, telescope, and ultra-wide-angle). The reason why I experiment with 2019 models in 2020 is made by comparing and analyzing them with the same conditions as possible. X-Rite ColorChecker Classic Charts were taken with Galaxy Note 10 and iPhone 11 Pro under the same conditions and analyzed using Imatest. The two cameras’ telescopes, wide angles (basic), and ultra-wide angles are grouped and analyzed respectively. As a result of the study, I obtained the following results. First, iPhone 11 Pro reproduces in a color closer to the accuracy than Galaxy Note 10. Second, in Galaxy Note 10, it shows yellow in red, green colors and grayscale colors. In iPhone 11 Pro, gray-scale colors are not mixed, reproducing a color that is close to the accuracy(정색?). Also, Magenta color has been showed in the blue lines, which makes no significant visible difference with the naked eye. Third, the colors of the red and green lines of Galaxy Note 10 are expressed in a relatively high chroma. Through this experiment, we studied about the color reproduction of mobile phone camera according to Galaxy Note 10 and iPhone 11 Pro. The accuracy of the average value is limited because the experiment has not been carried out several times. The results of this experiment cannot be universally applied, as they have been experimented with color reproduction using extremely limited mobile phone cameras at this time of rapid development and release of many mobile phones. In the future, increasing the universality and accuracy of mobile phone cameras will be an opportunity to give consumers a better understanding of mobile phone camera color reproduction and to present the criteria for choosing mobile phone cameras.