Fig. 5
Comparison of the agreement of three surface characterization techniques with visual assessment. The box plots show measurements for 20 samples obtained from a profilometry; b gloss measurements; c specular vs. diffuse reflectance at 457 nm. The “Polished” and “Unpolished” categories were determined visually. Each box shows the distribution of the measurements based on the median, 1st and 3rd quartile. The whiskers represent minimum and maximum values