Right now rescaling to 8-bit is done through multiplying the normalised intensities by a user-definable bias, such that the centre intensity is becomes that of the bias. Higher bias values therefore stretches the lower range, to the benefit of umbra/penumbra distinction. However, any values outside the 8-bit range are clipped, which can affect facula.
Implementing an optional alternative rescaling scheme based on e.g. skimage's rescale_intensity could cater to scenarios where facula distinction is important.
Should probably do a bit of research to see if this is indeed a needed/wanted feature.
Right now rescaling to 8-bit is done through multiplying the normalised intensities by a user-definable bias, such that the centre intensity is becomes that of the bias. Higher bias values therefore stretches the lower range, to the benefit of umbra/penumbra distinction. However, any values outside the 8-bit range are clipped, which can affect facula.
Implementing an optional alternative rescaling scheme based on e.g.
skimage'srescale_intensitycould cater to scenarios where facula distinction is important.Should probably do a bit of research to see if this is indeed a needed/wanted feature.