Microscan Vision Hawk Smart Camera Manual page 58

Chapter 3
Optics and Lighting
White Balance Implementation
White balance is a processing operation performed to ensure proper color fidelity in a
captured digital image. The image sensor does not detect light exactly as the human eye
does, and so some processing or correction of the detected image is necessary to ensure
that the final image realistically represents the colors of the original image. Proper white
balance is required to take into account the "color temperature" of the light source, which
refers to the relative "coolness" of white light. The main purpose of white balance as it
relates to the Vision HAWK is to render neutral colors correctly (gray/white) and to provide
consistent color results.
Factory pre-set white balance calibration should be satisfactory for most applications, but
the Vision HAWK allows for user adjustment or calibration of the white balance to account
for exposure to different lighting conditions.
Before white balance:
After white balance:
3-18 Vision HAWK Smart Camera Guide