Figure 3 | Scientific Reports

Figure 3

From: Research on parameters optimization of digital imaging system in red–yellow jadeite color measurement

Figure 3

(a) With the rise of illuminance, the lightness \({L}^{*}\) of jadeite increases. Each box represents the distribution of the lightness of all samples at the same illuminance level. (b) A highly positive correlation between \({\Delta L}_{1100-2500\text{lx}}^{*}\) and color coordinate \({b}_{1100\text{lx}}^{*}\). The color boxes are the simulated color of the sample under 1100 and 2500 lx.

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