hillas_parameters¶
-
ctapipe.image.
hillas_parameters
(geom, image)[source]¶ Compute Hillas parameters for a given shower image.
Implementation uses a PCA analogous to the implementation in src/main/java/fact/features/HillasParameters.java from https://github.com/fact-project/fact-tools
The recommended form is to pass only the sliced geometry and image for the pixels to be considered.
Each method gives the same result, but vary in efficiency
- Parameters
- geom: ctapipe.instrument.CameraGeometry
Camera geometry, the cleaning mask should be applied to improve performance
- imagearray_like
Charge in each pixel, the cleaning mask should already be applied to improve performance.
- Returns
- HillasParametersContainer:
container of hillas parametesr