StarFinder v 1.8.2a: list of modules


ADD_OVERLAP
Find and add the overlap region of two 2D arrays.

ADD_SUBSCRIPT
STARFINDER auxiliary routine to handle internal data structure.

AIRY_PATTERN
Compute an Airy pattern.

ALL_MAX
Find relative maxima in a 2D array.

ANGLE
Compute the position angles of a set of points on a plane.

ARRAY_OVERLAP
Find bounds of overlap region of two 2D arrays.

ARRAY_PARTITION
Define bounds to partition an array into a pre-fixed
number of parts along one dimension.

B_SPLINES
Compute the 1-D observation matrix to determine the
coefficients of an interpolating spline in the B-splines
representation.

BINARY_ARRAY
Transform a 2D array to binary by thresholding.

CENTER_ARRAY
Shift a 2D array in order to put its maximum at a given
specified position.

CENTROID
Compute the centroid of a 2D array.

CENTROIDER
Sub-pixel centering of an image by iterative fractional
shift.

CHECK_BORDER
Check overlapping region of two 2D arrays.

CIRC_MASK
Apply a circular mask to a 2D array.

CLICK_ON_MAX
Select local maxima in an image by mouse click.

COMPARE_LISTS
Find coincidences between two sets of points on a plane.

CONVERGENCE
Check convergence condition between two variables.

COORD_TO_SUBS
Convert pixel coordinates in a 2D array to subscripts.

CORRELATION_COEFF
Compute the correlation coefficient of two 2D patterns.

CORRELATE_MAX
Estimate the position of a feature in an image by
maximizing its correlation with a reference template.

CREATE_ELEMENT
STARFINDER auxiliary routine to handle internal data structure.

CROSSES
Mark interesting points in an image with crosses.

DEFAULT_DISPLAY_OPT
Define default options to display a 2D image.

DELETE_ELEMENT
STARFINDER auxiliary routine to handle internal data structure.

DIAG_MULT
Multiply a square array by a diagonal matrix.

DISPLAY_IMAGE
Display a 2D image according to a set of options.

DISTANCE
Compute the euclidean distance of a set of points on a
plane from an origin.

ESTIMATE_BACKGROUND
Estimate the background emission in an image by means
of IMAGE_BACKGROUND or MEDIAN_FILTER.

EXTEND_ARRAY
Pad 2D array with 0s.

EXTEND_SHIFT
Shift a 2D array without edge effects.

EXTRACT_OVERLAP
Extract the overlap region of two 2D arrays.

EXTRACT_STARS
STARFINDER auxiliary routine to handle internal data structure.

FILE_NAME
Return the complete name of a file in a directory
whose path is among the IDL search paths.
Operating system dependencies are taken into account.

FIND_ROT_TRANS
Find translation and rotation angle between two reference
frames, given the coordinates of a set of points in the
two reference frames.

FITSTARS
Multi-component PSF-fitting of one or more stellar images.

FITTING_ERRORS
Estimate formal errors on the solution of a linear
algebraic system.

FREQUENCY
Compute a 1D vector of Fourier frequencies.

FWHM
Compute the FWHM of a peak in an image.

GAUSS_NOISE_STD
Compute standard deviation of normally distributed
noise in an image.

GAUSSIAN2D
Compute bivariate gaussian function.

GET_MAX
Find coordinates of maximum intensity pixel in a
2D array.

GINV
Compute the Moore-Penrose generalized inverse of a
rectangular matrix.

HALO_SMOOTH
Smooth the halo of a stellar image by means of a
variable box size median filtering technique.

HISTO
Compute histogram.

HISTO_HWHM
Compute the Half Width at Half Maximum of an histogram.

IMAGE_BACKGROUND
Compute the background emission in a given image.

IMAGE_CORE
Identify the component connected to a specified
starting position and above a pre-fixed threshold
in a 2D array.

IMAGE_MODEL
Create a synthetic image given by a sum of shifted
scaled replicas of a given template.

IMAGE_SHIFT
Apply a fractional shift to an image by interpolation.

INSTR_NOISE
Evaluate overall standard deviation due to normally
distributed noise sources in an image.

LOG2
Compute the base 2 logarithm of an integer number.

LS_SYS
Put a linear algebraic system into normal form.

MATCH_COORD
Given two sets of coordinates on a plane, representing
the same points in reciprocally translated and rotated
reference frames, map one of them onto the other.

MAX_SEARCH
Identify relative maxima in a 2D array, according to a
specified set of options.

MEDIAN_FILTER
Extension of the IDL function MEDIAN: apply median
smoothing to a 2D array, using a reduced box size at the
array edge.

MERGE_LIST
STARFINDER auxiliary routine to handle internal data structure.

MIN_NORM_INVERSION
Compute the minimum norm solution of an algebraic system
of linear equations.

MM_PSF_SETUP
Define auxiliary data of multi-Moffat parametric PSF model 
used by "starfinder.pro".

MMFIT
Fit 2D data array with parametric model made of a sum of 
Moffat functions.

MOFFAT2D
Define a 2-dim Moffat function.

NEWTON_GAUSS
Fit a set of data with a parametric model.

PEAK_AREA
Estimate the area of a peak in an image.

PEAK_FWHM
Compute the FWHM of a peak in an image.

PEAK_WIDTH
Estimate the width of a peak in an image.

PHASE2D
Compute the phase array for a 2D delta-function.

PHOTON_NOISE
Evaluate photon noise standard deviation in an image.

PICK_REGION
Given a partition of a planar domain, find the
sub-region containing an assigned point.

PLANE
Compute a plane surface.

PSF_EXTRACT
Estimate the PSF in a stellar field image by combination
of a stack of stars.

RADIAL_DIST
Compute a 2D array of radial distances from an origin.

READ_FLOAT_DATA
Read a Free Format file containing floating-point
numbers, ordered by columns.

RECIPROCAL_DISTANCE
Compute the euclidean distance for each couple of
points in a set of given points on a plane.

RELATIVE_ERROR
Compute the relative error between two variables.

REMOVE_COINCIDENT
Remove multiple occurences from a set of points on
a plane.

REPAIR_SATURATED
Repair saturated stars in an stellar field image.

REPLACE_PIX
Replace known bad pixels in a 2D array by local median.

RESAMPLE
Resample a bivariate function defined on a rectangular
domain by integrating it over square regions.

REVERSE_CLASS
STARFINDER auxiliary routine to handle internal data structure.

ROT_TRANS
Rotate and translate a set of points on a plane.

SAMPLING_GRID
Define a set of equally-spaced points along an axis.

SCALE_LS_SYS
Scale a linear system of normal equations to improve
the eigenvalue ratio.

SEARCH_OBJECTS
Search meaningful maxima in a given image.

SHIFTED_TEMPLATES
Shift a template image by an integer multiple of a
pre-fixed sub-pixel shift.

SIMPSON_PIX_INTEGRAL
Resample a bivariate function defined on a rectangular
domain by integration over square regions with the
Simpson rule.

SIZE52
Alias of IDL 5.2 intrinsic SIZE function for previous
versions.

SORT_LIST
STARFINDER auxiliary routine to handle internal data structure.

SPLINE_COEFF
Compute the coefficients of the interpolating spline
to a set of observations on a rectangular grid.

SPLINE_INTERP
Evaluate a spline function on a rectangular grid.

STACK_COMBINE
Combine frames in a 3D stack.

STAR
STARFINDER auxiliary routine to handle internal data structure.

STAR_PARAM
STARFINDER auxiliary routine to handle internal data structure.

STARFINDER
Stars detection, astrometry and photometry in a stellar field.

STARLIST
STARFINDER auxiliary routine to handle internal data structure.

SUB_ARRAY
Extract sub-array from a 2D array.

SUB_ARRAYS
Given a 2D array, extract a stack of sub-arrays
centered at specified positions.

SUBS_TO_COORD
Convert vector of array subscripts to pixel coordinates.

SUPERPOSE_STARS
Compute stack median of a set of stars in an image.

SVD_INV_MATRIX
Compute the inverse of a rectangular matrix by Singular Value 
Decomposition.

SVPSF_EXTRACT
Partition an image into a grid of sub-regions and extract 
a local PSF estimate for each region.

UPDATE_LIST
STARFINDER auxiliary routine to handle internal data structure.

WHERE_STARS
STARFINDER auxiliary routine to handle internal data structure.

XCOMPARE_LISTS
Compare two lists of objects. Widget interface.

XDISPFILE
Read an ASCII file and display its content on a text widget.

XDISPLAYOPT
Modify the display options of an image. Widget interface.

XIMAGE_SUPPORT
Modify the support of an image. Widget interface.

XMATCH_COORD
Widget interface for the MATCH_COORD procedure.

XNOISE
Widget application to compute the noise standard
deviation for each pixel in a given image.

XNOISE_STDEV
Widget interface for the GAUSS_NOISE_STD procedure.

XPLOT
Execute simple plots. Widget interface.

XPSF_EXTRACT
Widget interface for the PSF_EXTRACT procedure.

XPSF_SMOOTH
Widget interface for the HALO_SMOOTH function.

XREPLACE_PIX
Widget interface for the REPLACE_PIX function.

XSTARFINDER
Package for stellar fields analysis. Widget interface.

XSTARFINDER_RUN
Widget interface for the STARFINDER procedure.
