Data selection:

  • -target=NAME Name of the astrophysical object
  • -effwave=LENGTH Effective wavelength, e.g. 1.6micron
  • -effband=LENGTH Effective bandwidth, e.g. 200nm
  • -wavemin=LENGTH Minimum wavelength, e.g. 1.5µm
  • -wavemax=LENGTH Maximum wavelength, e.g. 1.7µm

Which data to fit and how:

  • -use_vis=all|none|amp|phi Complex visibility data to consider
  • -use_vis2=all|none Powerspectrum data to consider
  • -use_t3=all|none|amp|phi Bispectrum data to consider
  • -convexcost=yes|no Use convex approximation for fitting complex data?
  • -phasecost=vonmises|haniff|convexlimit Co-log-likelihood approximation to use for phase data

Image parameters and direct model:

  • -pixelsize=ANGLE Angular size of pixels, e.g. 0.1mas
  • -fov=ANGLE Angular size of the field of view, e.g. 20mas
  • -imagesize=DIM|DIM1xDIM2 Number of pixels per side of the image
  • -flux=VALUE Total flux (sum of pixels = VALUE)
  • -fluxerr=VALUE Assumed standard deviation for the total flux
  • -min=LOWER Lower bound for the pixel values
  • -max=UPPER Upper bound for the pixel values
  • -xform=nfft|separable|nonseparable Method to compute the Fourier transform
  • -smearingfunction=none|sinc|gauss Method to model the effects of the spectral bandwidth smearing
  • -smearingfactor=VALUE Factor to scale the effects of the spectral bandwidth smearing
  • -nthreads=NUMBER Number of threads for the fast Fourier transform

Regularization settings:

  • -regul=NAME Name of regularization method (-regul=help for more information)
  • -mu=VALUE(S) Global regularization weight

Available regularizations:

  • -regul=hyperbolic -tau=... Edge-preserving smoothness with hyperbolic norm, approximates total variation (TV) with TAU very small.
    • -tau=VALUE Edge preserving threshold
    • -eta=VALUE(S) Gradient scales along dimensions
  • -regul=compactness -gamma=... Quadratic compactness with full-width at half maximum GAMMA.
    • -gamma=FWHM A priori full half width at half maximum, e.g. 15mas

Initial image:

  • -initial=NAME FITS file or method for initial image
  • -seed=VALUE Seed for the random generator

Output file:

  • -save_visibilities Save model complex visibilities
  • -overwrite Overwrite output if it exists
  • -bitpix=BITPIX Bits per pixel
  • -save_initial Save initial image as a secondary HDU in the result

Reconstruction strategy:

  • -bootstrap=COUNT Number of bootstrapping iterations
  • -recenter Recenter result of bootstrapping iterations
  • -threshold=FRACTION Level for soft-thresholding input image(s)

Messages:

  • -quiet Suppress most messages
  • -verb=COUNT Verbose level

Optimizer Settings:

  • -mem=COUNT Number of previous steps to memorize in VMLMB
  • -ftol=REAL Function tolerance for the global convergence
  • -gtol=REAL Gradient tolerance for the global convergence
  • -maxiter=COUNT Maximum number of iterations
  • -maxeval=COUNT Maximum number of evaluations of the objective function

Line search:

  • -sftol=REAL Function tolerance for the line search
  • -sgtol=REAL Gradient tolerance for the line search
  • -sxtol=REAL Step tolerance for the line search

Miscellaneous:

  • -settings=NAME Name of the FITS parameter file
  • -plugin=NAME Name of plugin
  • -debug Debug mode
  • -help Print out this help
  • -version Print out version number
Topic revision: r1 - 2018-09-21 - FerreolSoulez
 
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