Extract scaled number of matching striation marks from two aligned signatures

extract_feature_matches_per_mm(striae, aligned, resolution)

Arguments

striae

data frame of striation marks based on two aligned signatures

aligned

two aligned signatures

resolution

micron per pixel resolution

Value

scaled number of matching striation marks per mm

Examples

if (FALSE) {
# Set the data up to be read in, cleaned, etc.
library(bulletxtrctr)
library(x3ptools)

example_data <- bullet_pipeline(
  location = list(
    Bullet1 = c(hamby252demo$bullet1[2]),
    Bullet2 = c(hamby252demo$bullet2[4])
  ),
  x3p_clean = function(x) x %>%
      x3p_scale_unit(scale_by=10^6) %>%
      rotate_x3p(angle = -90) %>%
      y_flip_x3p()
)

alignment <- sig_align(example_data$sigs[[1]]$sig,
                       example_data$sigs[[2]]$sig)
striae <- sig_cms_max(alignment)
extract_feature_matches(striae$lines)
extract_feature_mismatches(striae$lines)
}