Rm. Lark, GEOSTATISTICAL DESCRIPTION OF TEXTURE ON AN AERIAL PHOTOGRAPH FOR DISCRIMINATING CLASSES OF LAND-COVER, International journal of remote sensing, 17(11), 1996, pp. 2115-2133
The mean square-root pair difference between the DN values of pixels s
eparated by a particular spatial interval (lag) in a digital image is
a measure of spatial variability related to the semi-variance. It is s
hown that this statistic, when evaluated in a local window for several
lags differing in length and direction, can make an important contrib
ution to the discrimination of classes of land cover. Square-root pair
differences are, for this purpose, statistically preferable to semi-v
ariances. It is also shown that a set of square-root pair differences
measures different components of image texture, not all of which may b
e distinguished by simpler textural variables.