Minimizing visual variations in multi-lane print outputs
AssigneeHewlett-Packard Development Company, L.P.
InventorsFrank E Perdicaro, Matthew Alan MacClary
Life of this patent
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Abstract
In an example, an apparatus is described that includes a vision system and an image correction module. The vision system captures an image of a multi-lane print output. The image correction module receives the image of the multi-lane print output from the vision system and calculates a calibration to image data from which the multi-lane output is printed. The calibration minimizes visual variations between the multi-lane print output and a reference image.
Claims14
An apparatus, comprising:
- a vision system for capturing an image of a multi-lane print output printed on a web;
- and
- an image correction module for
- detecting a visual variation in a lane of a print output, wherein the lane comprises a plurality of ribbons, and wherein each ribbon of the plurality of ribbons comprises a plurality of copies of an image that repeat in a cross-web direction,
- for calculating a calibration for a first ribbon of the plurality of ribbons that makes the visual variation less visible;
- and
- for adjusting unique image data from which the first ribbon is printed according to the calibration without adjusting unique image data from which a second ribbon of the plurality of ribbons is printed.
A non-transitory machine-readable storage medium encoded with instructions executable by a processor, the machine-readable storage medium comprising:
- instructions to detect a visual variation in a lane of a print output printed on a web, wherein the lane comprises a plurality of ribbons, and wherein each ribbon of the plurality of ribbons comprises a plurality of copies of an image that repeat in a cross-web direction;
- instructions to calculate a calibration for a first ribbon of the plurality of ribbons that makes the visual variation less visible;
- and
- instructions to adjust unique image data from which the first ribbon is printed according to the calibration without adjusting unique image data from which a second ribbon of the plurality of ribbons is printed.
A method, comprising:
- detecting a visual variation in a lane of a print output printed on a web, wherein the lane comprises a plurality of ribbons, and wherein each ribbon of the plurality of ribbons comprises a plurality of copies of an image that repeat in a cross-web direction;
- calculating a calibration for a first ribbon of the plurality of ribbons that makes the visual variation less visible;
- and
- adjusting unique image data from which the first ribbon is printed by according to the calibration without adjusting unique image data from which a second ribbon of the plurality of ribbons is printed.
Dependencies are inferred from the claim text.