Tophat2DKernel¶
- class astropy.convolution.Tophat2DKernel(radius, **kwargs)[source]¶
Bases:
astropy.convolution.core.Kernel2D
2D Tophat filter kernel.
The Tophat filter is an isotropic smoothing filter. It can produce artifacts when applied repeatedly on the same data.
- Parameters
- radius
python:int
Radius of the filter kernel.
- mode
python:str
, optional - One of the following discretization modes:
- ‘center’ (default)
Discretize model by taking the value at the center of the bin.
- ‘linear_interp’
Discretize model by performing a bilinear interpolation between the values at the corners of the bin.
- ‘oversample’
Discretize model by taking the average on an oversampled grid.
- ‘integrate’
Discretize model by integrating the model over the bin.
- factornumber, optional
Factor of oversampling. Default factor = 10.
- radius
See also
Examples
Kernel response: