extract_helper_feature_n_striae: Extract information for striation marks from two aligned...

In heike/bulletxtrctr: Automatic Matching of Bullet Striae

Extract information for striation marks from two aligned signatures

Description

internal function, called by multiple extract_feature functions

Usage

extract_helper_feature_n_striae(striae, type = "peak", match = TRUE)

Arguments

striae	data frame of striation marks based on two aligned signatures
type	one of "peak", "valley" or "all"
match	binary setting: TRUE for matching striae, FALSE for non-matching striae

Value

number of striae

See Also

Other striae-related-features: extract_feature_cms(), extract_feature_cms2(), extract_feature_cms2_per_mm(), extract_feature_left_cms(), extract_feature_matches(), extract_feature_matches_per_mm(), extract_feature_mismatches(), extract_feature_mismatches_per_mm(), extract_feature_non_cms(), extract_feature_non_cms_per_mm(), extract_feature_right_cms(), extract_feature_sum_peaks(), extract_features_all()

Examples

## Not run: 
# 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_helper_feature_n_striae(striae$lines, type = "all", match = T)

## End(Not run)

heike/bulletxtrctr documentation built on June 3, 2024, 12:08 a.m.