Methods and apparatus are provided for automatically correcting colors of
a digital image. The methods and apparatus create a first digital image
of a target test sheet under a predetermined lighting condition, the
target test sheet including a plurality of regions, each region including
a known color value, the first digital image including a plurality of
regions, each region including an acquired color value, compare the
acquired color values to the known color values to align the regions of
the target test sheet with the regions of the first digital image and
generate a profile to correct a color imbalance between the acquired
color values and the known color values, create a second digital image
under the predetermined lighting condition, and apply the profile to
correct a color balance of the second digital image.