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引言彩色胶片所再现的颜色的三刺激值 X、y、Z,可由方程(1)解得:X=100(?)_(vis)T(λ)S(λ)(?)(λ)dλ/(?)_(vis)S(λ)(?)(λ)dλY=100(?)_(vis)T(λ)S(λ)(?)(λ)dλ/(?)_(vis)S(λ)(?)(λ)dλZ=100(?)_(vis)T(λ)S(λ)(?)(λ)dλ/(?)_(vis)S(λ)(?)(λ)dλ(1)式中,T(λ)是再现颜色的光谱透射系数,S(λ)是辐照彩色胶片的发光体的光谱能量分布,(?)(λ),(?)(λ),(?)(λ)是 CTE 标准色度观察者的颜色匹配函数。方程(1)中的定积分((?)_(vis))取自整个可见光谱范围。在不
INTRODUCTION The tristimulus values X, Y, Z of the color reproduced by the color film are given by equation (1): X = 100 (?) T (?) S / (?) _ (vis) S (λ) (?) dλY = 100 (?) _ (vis) T (?) S ) S λ λ λ λλ λ λ = 100 λ λ T λ λ λ λ λλ λ λ λ λ λ λλλλλ λ λλλλ λ λλ λλλλ λ λλ λ λ λ λλλ λ λ λλλ λ λ λ λ λλ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ λ ) (λ) dλ (1) where T (λ) is the spectral transmittance of the reproduced color and S (λ) is the spectral energy distribution of the illuminant of the irradiated color film, (λ), (λ) (λ) is the color matching function of the CTE standard chromaticity observer. The definite integral ((?) _ (Vis)) in equation (1) is taken over the entire visible spectrum. No