Provided is an image processing method comprising: obtaining first,
second and third image planes from at least one image sensor, the first
image plane formed from light of a first spectral distribution, the
second image plane formed from light of a second spectral distribution
and the third image plane formed from light of a spectral distribution
which substantially covers the visible spectrum; generating first spatial
frequency components from the first, second and third image planes;
generating a second spatial frequency component from the third image
plane; applying a color transform to the first spatial frequency
components from the first, second and third image planes to obtain at
least first, second and third transformed first spatial frequency image
planes; combining the at least first, second and third transformed first
spatial frequency image planes with the second spatial frequency
component from the third image plane to form an image.