Figure 2.

Gray value levels of shading correction of a total of 943 images, in percent. a) median grey value (upper line), b) grey value range (medium line), c) grey value segmentation deviation (lower line).

Kayser et al. Diagnostic Pathology 2008 3(Suppl 1):S11   doi:10.1186/1746-1596-3-S1-S11