morphops 0.1.8

Geometric morphometrics operations in python

Welcome to Morphops!

Morphops implements common operations and algorithms for geometric morphometrics, in python 3.

Some high-level operations in the current version are

• Centering, rescaling data

• Rigid Rotation, Ordinary and Generalized Procrustes alignment

• Thin-plate spline warping

• Reading from and writing to *.dta files

Dependencies

• numpy

Installation

pip install morphops

Usage Examples

import morphops as mops
# Create 3 landmark sets, each having 5 landmarks in 2 dimensions.
A = [[0,0],[2,0],[2,2],[1,3],[0,2]]
B = [[0.1,-0.1],[2,0],[2.3,1.8],[1,3],[0.4,2]]
C = [[-0.1,-0.1],[2.1,0],[2,1.8],[0.9,3.1],[-0.4,2.1]]

# Perform Generalized Procrustes alignment to align A, B, C.
# :func:`gpa` is in the procrustes module.
res = mops.gpa([A,B,C])

# res['aligned'] contains the aligned A, B, C.
# res['mean'] contains the mean of the aligned A, B, C.

# Create a Thin-plate Spline warp from A to B and warp C.
warped_C = mops.tps_warp(A, B, C)
# warped_C contains the image of the pts in C under the TPS warp.