bandpass_filter

sunkit_image.trace.bandpass_filter(image, nsm1=1, nsm2=3)[source]

Applies a band pass filter to the image.

Parameters
  • image (numpy.ndarray) – Image to be filtered.

  • nsm1 (int) – Low pass filter boxcar smoothing constant. Defaults to 1.

  • nsm2 (int) – High pass filter boxcar smoothing constant. The value of nsm2 equal to nsm1 + 1 gives the best enhancement. Defaults to 3.

Returns

numpy.ndarray – Bandpass filtered image.