Geography Reference
In-Depth Information
We then generalize by saying that, starting from the pixel
,,
,
,⋯,
,
, one can
reach the pixel
,,
,
,⋯,
,
,
,
( respectively the pixel
,,
,
,⋯,
,
,
,
+180°
) by respecting the rule of connexion
,
(respectively the rule of connexion
,
+180°
), while respecting also the
conditions
⋯
for each value of
=1,2,3,⋯
. The conditions
⋯
concern the constraints that have to respect
,,
,
,⋯,
and the size of the image
window. These constraints are major in the processing of the pixels placed in border of the
image or in border of the image window. The order of the textural parameter to estimate is
the depth of the generic tree. This order is equal here to
+1
. On the figure 2, we present
the generic for the calculation of textural parameters of order two and on figure 3, we
Figure 1.
Generic tree for the evaluation of textural parameters of order n>1
Figure 2.
Exploration of the generic tree for the calculation of textural parameters of order two.
