bright_cleaning

ctapipe.image.cleaning.bright_cleaning(image, threshold, fraction, n_pixels=3)

Clean an image by removing pixels below a fraction of the mean charge in the n_pixels brightest pixels.

No pixels are removed instead if the mean charge of the brightest pixels are below a certain threshold.

Parameters:

imagenp.ndarray

pixel charges

thresholdfloat

Minimum average charge in the n_pixels brightest pixels to apply cleaning

fractionfloat

Pixels below fraction * (average charge in the n_pixels brightest pixels) will be removed from the cleaned image

n_pixelsint

Consider this number of the brightest pixels to calculate the mean charge

Returns:

A boolean mask of selected pixels.