Patent ID: 6686953
Filing Date: 2004-02-03
Classification: H04N

Abstract:
An apparatus for calibrating a display associated with stored LookUp Tables, including:first means for displaying on said display a first midtone sub-target having a first midtone solid adjacent to a first midtone blended region, said first midtone blended region having a first series of adjacent double rows of substantially black pixels alternating with a first series of single rows of light pixels; second means for displaying on said display a second dark sub-target having a second dark solid adjacent to a second dark blended region, said second dark blended region having a second series of adjacent double rows of substantially black pixels alternating with a second series of single rows of midtone pixels; third means for displaying on said display a third light sub-target having a third light solid adjacent to a third light blended region, said third light blended region having a third series of single rows of substantially black pixels alternating with a third series of single rows of midtone pixels and alternating with a third series of single rows of light pixels; and means for modifying said LookUp Tables responsive to changes in said first, second and third sub-targets.