Increased the speed of processHandwriting() by
changing the function to process a handwritten document in sections
instead of all at once. Nodes created by
processHandwriting() in version 3.1.0 might differ slightly
in placement from previous versions.
Fixed bugs in fit_model() and
analyze_questioned_documents() introduced by the changes to
process_batch_list() in version 3.0.0.
Major reductions made to the memory required by
process_batch_list() so it can now process paragraph length
documents from the CSAFE Handwriting Database on machines with 8 GB of
RAM.
process_batch_list() now skips to the next document
if an error is returned while trying to process a document. A log file
records the document name(s) and error message(s) of any problem
documents. If the user reruns process_batch_list() they now
have the option to either try a second time to process problem documents
or skip them entirely.
New function get_clusters_batch() calculates cluster
assignments of all files in a directory.
fit_model() allows the user to fit a statistical
model to known handwriting samples collected from a closed-set of
persons.
analyze_questioned_documents() in conjunction with a
model created by fit_model() allows a user to calculate the
posterior probability that each known writer in the model is the writer
of the questioned document(s).
analyze_questioned_documents() only works when the
questioned document(s) had to have been written by one of the model
writers. This function must NOT be used if someone other than one of the
model writers could written the questioned document(s) as it could yield
misleading results.
processDocument() is a new wrapper function that
runs readPNGBinary(), thinImage(), and
processHandwriting() so the user doesn’t need to run these
functions individually.
plotImage(), plotImageThinned(), and
plotNodes now only need one input, a document processed
with processDocument()
processHandwriting() no longer crashes when the
input writing is a single letter or word
read_and_process() superseded in favor of
processDocument()
extractGraphs() superseded in favor of
process_batch_dir()