Why is Color Gamut of Red Region of AdobeRGB Also Wider Than That of sRGB?

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  • Inui Masao
    Department of Media and Image Technology, Faculty of Engineering, Tokyo Polytechnic University

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  • なぜAdobeRGBは赤の色域もsRGBより広いのか？
  • ナゼ AdobeRGB ワ アカ ノ ショクイキ モ sRGB ヨリ ヒロイ ノ カ

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Only the green primary of AdobeRGB is higher chroma than that of sRGB, but both red and blue primaries of AdobeRGB and sRGB are the same. Color gamut of AdobeRGB is wider than that of sRGB in not only green region but also red and blue regions. It originates from higher luminance of red and blue primaries of AdobeRGB than those of sRGB.<br>

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