Fig. 6: Enhancement effect of dynamic range extension Retinex.
From: Localized fading feature extraction method of ancient ceramic decoration
Panels A and B denote the two main parts of Fig. 6: Panel A shows the histogram comparison (a1, a2), and Panel B shows the profile comparison (b1, b2). a1 Histogram of original image shows broad, low contrast values. a2 Histogram after enhancement shows peaked, high contrast values. b1 Profile analysis of unenhanced image shows weak faded features. b2 Enhanced profile shows smoothed contrast and clearer fading.
