ASCL Code Record
[ascl:1307.006]
im2shape: Bayesian Galaxy Shape Estimation
im2shape is a Bayesian approach to the problem of accurate measurement of galaxy ellipticities for weak lensing studies, in particular cosmic shear. im2shape parameterizes galaxies as sums of Gaussians, convolved with a psf which is also a sum of Gaussians. The uncertainties in the output parameters are calculated using a Markov Chain Monte Carlo approach.
- Code site:
- http://www.sarahbridle.net/im2shape/
- Used in:
- https://ui.adsabs.harvard.edu/abs/2012A%26A...540A..61S https://ui.adsabs.harvard.edu/abs/2007A%26A...470..449B
- Bibcode:
- 2013ascl.soft07006B
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