Normalise to CAX

Clicking the “Normalise to CAX” button normcax normalises the image so that the central axis (CAX) value of the image is 100 and the minimum is zero using the formula:

\[NZ = \cfrac {(Z - min)*100} {cax - min}\]

Where cax and min are the image central axis value and minimum respectively. Z is the current pixel value and NZ is the new pixel value. Clicking the button again will remove the normalisation.