get_entropy

xrayvision.mem.get_entropy(image, flux)

Return the entropy of an image.

The entropy is defined as

\[H(x) = sum_i x_i * log(x_i/(m e))\]

where \(x\) is an image and \(m\) is the total flux divided by the number of pixels of in the image

Parameters:

• image – Input image array

• flux – Total flux divided by the number of pixels of the image