eplist {edci} | R Documentation |
The matrices returned by edgepoints
are converted into a
list of edgepoints and a list of corresponding angles.
This is useful for processing the results of edgepoints
by oregMclust
.
eplist(data, maxval, test=FALSE, xc=NULL, yc=NULL)
data |
list object returned from edgepoints . |
maxval |
positive numbers. Critical value for deciding, if an pixel belongs to an edge or not. |
test |
optional boolean. Must be set to TRUE if
edgepoints was used with estimator="test_mean" or
estimator="test_median" . Then maxval is the level of
the test. |
xc,yc |
optional numerical vectors defining the coordinates of the edgepoints. A pixel with jump height data[[1]][i,j] gets the coordinates (xc[i],yc[j]). As default, the coordinates are assumed as equidistant within [0,1], e.g. if the matrix of jump heights is a n-m-matrix, the pixel at position i,j gets the coordinates (i/n,j/m). |
A numerical matrix is returned. The first two columns contain the
coordinates of the pixels, for which the detected jump height is
larger than maxval
(or smaller then maxval
, if
test=TRUE
). The third column contains the corresponding angles.
Tim Garlipp, garlipp@mathematik.uni-oldenburg.de