Examples#

This directory gives some examples on simulating galaxy images with Galsim; and galaxy detection and shape estimation with FPFS.

Simulations#

  • example 1 shows how to simulate pure noise with Galsim.

  • example 2 shows how to simulate galaxies with Galsim.

  • example 3 shows simulation of distortion beyond affine approximation

Isolated Galaxies#

  • example 1 shows how to measure shear from noiseless galaxy images (fix center of isotropy).

  • example 2 shows how to detect galaxy measure shear from galaxy images.

  • example 3 shows the Hessian matrix for noise bias correction.

Blended Galaxies#