Useful to convert (x; y) coordinates to chain-coded coordinates.
pix2chc(coo)chc2pix(chc)
a matrix or a numeric
(x; y) coordinates passed as a matrix
chain coordinates
Kuhl, F. P., & Giardina, C. R. (1982). Elliptic Fourier features of a closed contour. Computer Graphics and Image Processing, 18(3), 236-258.
chc2pix
Other import functions:
import_Conte()
,
import_StereoMorph_curve1()
,
import_jpg1()
,
import_jpg()
,
import_tps()
,
import_txt()
Other import functions:
import_Conte()
,
import_StereoMorph_curve1()
,
import_jpg1()
,
import_jpg()
,
import_tps()
,
import_txt()
pix2chc(shapes[1]) %T>% print %>% # from pix to chc
chc2pix() # and back
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