Calculated using a ratio of the eigen values (inertia axis)
Source
Rosin PL. 2005. Computing global shape measures.
Handbook of Pattern Recognition and Computer Vision. 177-196.
Arguments
- coo
a matrix of (x; y) coordinates.
Value
numeric for a single shape, list for a Coo
See also
Other coo_ descriptors:
coo_angle_edges(),
coo_angle_tangent(),
coo_area(),
coo_boundingbox(),
coo_chull(),
coo_circularity(),
coo_eccentricity,
coo_elongation(),
coo_length(),
coo_lw(),
coo_rectangularity(),
coo_rectilinearity(),
coo_scalars(),
coo_solidity(),
coo_tac(),
coo_width()
Examples
coo_convexity(bot[1])
#> [1] 0.8003675
bot %>%
slice(1:3) %>% # for speed sake only
coo_convexity()
#> $brahma
#> [1] 0.8003675
#>
#> $caney
#> [1] 0.9409434
#>
#> $chimay
#> [1] 0.9454935
#>
