Figure 11

Reproducibility of Color Calibration. Probability distribution of dE*ab errors, based on 39 images taken with a Nikon D200 and 15 images with a Canon 10D under different illuminants and settings. Median of 3.43 dE*ab for all calibrated images, 23.26 dE*ab for all uncalibrated images, a median of 2.83 dE*ab for all 'normal' calibrated images and 14.25 dE*ab for all 'normal' uncalibrated images. If we restrict ourselves to the proper patches of normal calibrated images the median is only 2.58 dE*ab