Methods and apparatus for digitally enhancing images are disclosed. In one
embodiment, a method includes performing a wavelet transformation process
on an acquired image to provide a low pass spatial frequency. A dynamic
range and a mixing value are then determined from the low pass spatial
frequency, and the mixing value is applied to provide a transformed
output image. The transformed output image is then reformatted to provide
a mixed output image, and the mixed output image is subtracted from the
acquired image to provide an enhanced image. In an alternate embodiment,
a method includes analyzing an acquired image to provide a high sensitive
low light image and a low sensitive high light image, and then summing
the high sensitive low light image and the low sensitive high light image
to create an enhanced image.