Calculates the elongation of a shape

Calculates the elongation of a shape

Usage

coo_elongation(coo)

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, the eccentricity of the bounding box

See also

Other coo_ descriptors: coo_angle_edges(), coo_angle_tangent(), coo_area(), coo_boundingbox(), coo_chull(), coo_circularity(), coo_convexity(), coo_eccentricity, coo_length(), coo_lw(), coo_rectangularity(), coo_rectilinearity(), coo_scalars(), coo_solidity(), coo_tac(), coo_width()

Examples

coo_elongation(bot[1])
#> [1] 0.7444101
# on Coo
# for speed sake
bot %>% slice(1:3) %>% coo_elongation
#> $brahma
#> [1] 0.7444101
#> 
#> $caney
#> [1] 0.7382738
#> 
#> $chimay
#> [1] 0.6255502
#>