About: http://webisa.webdatacommons.org/2301633

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	For example, the threshold value t can be set equal to the means of the intensity of the pixels in the image of FIG. 3 less the product of k1 and the pixel intensity variance, where k1 is a constant.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com