All functions

cmcPlot()

Visualize initial and high CMCs for a cartridge case pair comparison

comparison_allTogether()

Performs all steps in the cell-based comparison procedure.

comparison_calcPropMissing()

Calculate the proportion of missing values in a breech face scan

comparison_cellDivision

Split a reference scan into a grid of cells

comparison_cor()

Calculates correlation between a cell and a matrix of the same dimensions extracted from the cell's associated region.

comparison_fft_ccf()

Estimate translation alignment between a cell/region pair based on the Cross-Correlation Theorem.

comparison_getTargetRegions()

Extract regions from a target scan based on associated cells in reference scan

comparison_replaceMissing()

Replace missing values in a scan

comparison_standardizeHeights()

Standardize height values of a scan by centering/scaling by desired statistics and replacing missing values

decision_CMC()

Applies the decision rules of the original method of Song (2013) or the High CMC method of Tong et al. (2015)

decision_combineDirections()

Combine data frames containing CMC results from 2 comparison directions

decision_highCMC_cmcThetaDistrib()

Compute CMC-theta distribution for a set of comparison features

decision_highCMC_identifyHighCMCThetas()

Classify theta values in CMC-theta distribution as having "High" or "Low" CMC candidate counts

fadul1.1_processed fadul1.2_processed

Processed versions of the fadul1.1_raw and fadul1.2_raw datasets using preProcess_* functions from the cmcR package

preProcess_crop()

Remove observations from the exterior of interior of a breech face scan

preProcess_gaussFilter()

Performs a low, high, or bandpass Gaussian filter on a surface matrix with a particular cut-off wavelength.

preProcess_ransacLevel()

Finds plane of breechface marks using the RANSAC method

preProcess_removeFPCircle()

Given a surface matrix, estimates and filters any pixels within the estimated firing pin impression circle

preProcess_removeTrend()

Level a breech face impression surface matrix by a conditional statistic

x3pListPlot()

Plot a list of x3ps