Related Knowledge about Colorimeter & Spectrophotometer:
Color Space
CIE LAB
-L(Lightness)-0 is black,100 is white
-a(Red-Green)-positive values are red; negative values are green and 0 is neutral
-b(Blue-Yellow)-positive values are yellow;negative values are blue abd 0 is neutral
CIE LCH
L: Lightness,value is the same in each scale C:Chroma H:Hue Angle
dE Total Color difference
Delta-E is a measurement used to indicate how much a color deviates from an accepted standards.The higher the dE, the more inaccurate the color.
