coalignment

This package implements functions for coaligning image data.

sunkit_image.coalignment Module

This module provides routines for the co-alignment of images and MapSequence objects through both template matching and corrections due to solar rotation.

Functions

calculate_shift(this_layer, template)	Calculates the pixel shift required to put the template in the "best" position on a layer.
clip_edges(data, yclips, xclips)	Clips off the "y" and "x" edges of a 2D array according to a list of pixel values.
calculate_clipping(y, x)	Return the upper and lower clipping values for the "y" and "x" directions.
match_template_to_layer(layer, template)	Calculate the correlation array that describes how well the template matches the layer.
find_best_match_location(corr)	Calculate an estimate of the location of the peak of the correlation result in image pixels.
get_correlation_shifts(array)	Estimate the location of the maximum of a fit to the input array.
parabolic_turning_point(y)	Find the location of the turning point for a parabola y(x) = ax^2 + bx + c, given input values y(-1), y(0), y(1).
check_for_nonfinite_entries(layer_image, ...)	Issue a warning if there is any nonfinite entry in the layer or template images.
apply_shifts(mc, yshift, xshift[, clip])	Apply a set of pixel shifts to a MapSequence, and return a new MapSequence.
mapsequence_coalign_by_match_template(mc[, ...])	Co-register the layers in a MapSequence according to a template taken from that MapSequence.
calculate_match_template_shift(mc[, ...])	Calculate the arcsecond shifts necessary to co-register the layers in a MapSequence according to a template taken from that MapSequence.
calculate_solar_rotate_shift(mc[, layer_index])	Calculate the shift that must be applied to each map contained in a mapsequence in order to compensate for solar rotation.
mapsequence_coalign_by_rotation(mc[, ...])	Move the layers in a mapsequence according to the input shifts.