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Table 1 The statistical image descriptors for images acquired in various adjustment of WB settings with light temperature.

From: The influence of the microscope lamp filament colour temperature on the process of digital images of histological slides acquisition standardization

  lower WB adjusted WB higher WB
local characteristics A B C D A B C D A B C D
L - blue 50.20 1.71 50.54 1.63 66.69 1.25 66.96 1.05 56.60 1.93 57.14 1.84
a 14.00 1.73 14.61 1.45 3.20 1.15 4.46 2.19 13.67 1.53 13.21 1.53
b -56.33 2.08 -56.17 2.11 -22.40 1.12 -22.29 1.10 20.67 2.08 19.78 2.25
L - brown 40.65 2.16 42.18 1.87 55.19 1.63 57.47 1.92 46.67 1.71 49.31 1.64
a 12.00 0.00 11.87 0.67 3.87 1.19 3.86 1.14 17.67 1.53 17.78 1.47
b -45.33 1.53 -44.40 0.83 -11.73 1.03 -11.44 0.81 24.33 1.53 24.31 1.58
L - background with stroma 72.81 1.58 72.29 1.48 93.10 0.39 92.36 0.35 81.96 1.80 81.10 1.86
a 1.33 0.58 1.20 0.62 0.00 0.53 -0.05 0.44 12.67 2.52 12.95 2.25
b -36.67 2.52 -36.88 2.30 -2.40 0.51 -2.44 1.06 34.00 3.00 33.88 2.62
L - empty background 78.04 1.41 77.74 1.54 97.83 0.20 97.53 0.20 86.80 1.63 86.47 1.64
a -1.33 0.58 -1.26 0.27 -0.40 0.51 -0.41 0.25 9.67 2.52 9.75 2.18
b -31.67 2.52 -31.73 2.29 0.00 0.38 0.14 0.63 34.67 2.52 34.47 2.76
global characteristics             
L 70.85 1.20 67.95 1.49 91.42 0.49 87.19 0.39 80.78 1.80 76.23 1.81
a 2.33 0.58 3.78 0.66 0.27 0.46 0.71 0.53 13.00 2.00 12.98 2.07
b -38.00 2.00 -40.41 2.18 -3.13 0.52 -6.50 0.44 33.33 2.52 31.10 2.54
R 142.33 5.13 135.34 5.48      239.67 1.15 225.68 1.11
G 174.00 3.61 166.05 4.19      190.67 6.66 179.09 6.39
B 243.00 0.00 238.59 0.43      137.00 9.54 131.20 9.26
  1. Local and global characteristics of color and lightness in Lab and RGB color model calculated for images acquired in various adjustment of WB settings with light temperature for the sample shown in Fig. 1 and 2 calculated as mean and standard deviation of 6 images captured in similar conditions.
  2. Columns: A - mean of the median; B - standard deviation of the mean of the median
  3. C - mean of the mean; D - standard deviation of the mean of the mean