A range of colors for spinach, carrots, and pears was produced by blending samples of different colors and diluting with water. The samples were examined by a visual panel under a MacBeth Examolite to determine the “just noticeable color difference” (JND) and were then measured with a Colormaster differential colorimeter and a Color‐Eye calorimeter. The JND figures were 1–2.5 delta‐E units calculated by the Adams chromatic value equation. Repeatability figures on the instruments above were respectively…
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