A method of adjusting the balance of a digital image including a plurality of
pixel
values inverts the pixel values and applies a gamma value () individually
to each inverted pixel value to raise each inverted pixel value to the power of
the gamma value. The gamma value is related to an exposure adjustment amount (A)
indicating a desired exposure adjustment of the original scene. Then the inverted
pixel values are themselves inverted after application of the gamma value, thereby
providing modified pixel values representative of a modified digital image that
is adjusted for exposure.