Fig. 4From: Hyperpigmentation after surgery for a deep dermal burn of the dorsum of the hand: partial-thickness debridement followed by medium split-thickness skin grafting vs full-thickness debridement followed by thick split-thickness skin graftingTwo-dimensional (2D) quantitative analyses of skin color in the red, green, and blue (RGB) color space. a Skin graft area and control area were defined using the polygon selection tool. b Images from left to right split into red, green, and blue components, respectively. c Row of 2D histograms of each of the color components (control). d Row shows all three components and the distribution of the graft area is located on the left side (darker side) compared with the controlBack to article page