gaussian_psf¶
- artpop.image.gaussian_psf(fwhm, pixel_scale=0.2, shape=41)[source]¶
Gaussian point-spread function.
- Parameters
- fwhmfloat or
Quantity Full width at half maximum of the psf. If a float is given, the units will be assumed to be
arcsec. The units can be angular or in pixels.- pixel_scalefloat or
Quantity, optional The pixel scale of the psf image. If a float is given, the units are assumed to be
arcsecperpixel(why would you want anything different?).- shapeint or list-like, optional
Shape of the psf image. Must be odd. If an int is given, the x and y dimensions will be set to this value: (shape, shape).
- fwhmfloat or
- Returns
- psf
ndarray The PSF image normalized such that its sum is equal to one.
- psf