Method and apparatus for display of banding
AssigneeAgfa NV
InventorRoy D. Allen
Life of this patent
Estimating the term…
Abstract
A visual sensor includes a reference portion comprising an image independent of banding and a banding test portion adjacent to the reference portion comprising an image sensitive to banding. In one embodiment, the visual sensor also includes a process check portion adjacent to the banding portion for indicating whether a predetermined imaging parameter is within designated limits.
Claims34
A visual indicator comprising:
- a reference portion comprising a first image independent of banding;
- and
- a banding test portion adjacent to the reference portion comprising (1) a second image sensitive to banding, and (2) two patterns which when superimposed together magnify visibility of banding errors in the second image.
A method for generating a visual indicator, comprising:
- forming a reference portion comprising a first image independent of banding;
- and
- forming a binding test portion adjacent to the reference portion comprising (1) a second image sensitive to banding, and (2) two patterns which when superimposed together magnify visibility of banding errors in the second image.
A method for generating a banding indicator, comprising:
- imaging a first pattern at a first imaging parameter configuration value at a first addressability n;
- imaging a second pattern overlaid on the first pattern, the second pattern imaged at a second imaging paramter configuration value at a second addressability m, where m≧n;
- wherein the first and second pattern are configured so that the image resulting from the overlay of the first pattern and the second pattern is sensitive to banding.
A visual reference for characterizing banding indicated by a banding indicator, the visual reference comprising an image course enough to produce a tint signature that is relatively independent of banding, exposure setting, and focus setting;
- said image having the same mean tint level a the banding indicator.
Dependencies are inferred from the claim text.