slmsuite.holography.analysis.image_areas#
- image_areas(variances)[source]#
Given the output of
image_variances(), return a measure of spot area for each moment triplet. The output ofimage_variances()contains the moments \(M_{20}\), \(M_{02}\), and \(M_{11}\). We return the determinant \(|M|\) which is a proxy for spot area.- Parameters:
variances (numpy.ndarray) – The output of
image_variances(). Shape(3, image_count).- Returns:
Array of areas for the given moments in an array of shape
(image_count,).- Return type:
numpy.ndarray