1. A digital image processing method comprising: creating a first digital image of a target test sheet under a predetermined lighting condition, the target test sheet comprising a plurality of regions, each region comprising a known color value, the first digital image comprising a plurality of regions, each region comprising an acquired color value; aligning the regions of the target test sheet with the regions of the first digital image; generating a profile to correct a color imbalance between the acquired color values and the known color values; creating a second digital image under the predetermined lighting condition; and applying the profile to correct a color balance of the second digital image.