摘要 |
<p>Highlight density (XH) (or shadow density) is established on the basis of a cumulative histogram (H(X)) of density in an original: First, reference densities (XHR, XHL and XH1 - XHn) associated with prescribed reference statistic values (YHR, YHL and YH1 - YHn), respectively, and threshold values (WH1 - WHn) are computed. Then, the reference density (XHR) is compared with a prescribed threshold density (XHS), and a difference ( DELTA XHi) concerning the reference density (XHi) is compared with the threshold value (WHi) in a procedure, to thereby select one of procedures for establishing the highlight density.</p> |