Abstract:
A method for designing a black generation transfer curve is described. A table is produced to convert a first signal in a first signal space to a second signal in a second signal space. Color measurement data of a device is obtained. The color measurement data relates to a signal-to-color response of the device. A black generation transfer curve is designed constrained by the color measurement data of the device.
Abstract:
Systems and methods for utilizing metadata embedded in a color measurement target to uniquely identify the target through color measurement. A color measurement target is used for color calibration, color characterization, color adjustment and/or color correction of a color output device and includes a collection of color patches imaged by the output device, wherein metadata is embedded directly into the color patches of the color measurement target to uniquely identify the target through color measurement. The metadata-bearing patches in the target are used to communicate information through color measurement, and can contribute to the color characterization.
Abstract:
Systems and methods for limiting total colorant in a color rendering system are disclosed. Implementation of the present invention provides for transformation of a specified colorant in which the sum of the colorant components exceeds a total area coverage (TAC) limit to create a second or resultant colorant in which the sum of the colorant components is within the limit. Using a bijective transformation, colorant sampling and other manipulations can be performed using a nominal hypercube space and the results can be compressed from the nominal space back to the actual colorant-limited space, simplifying manipulation of the colorant-limited polytope space. The unlimited colorant hypercube may be divided into simplexes. For each simplex, intersection points may be found between the TAC limit and the edges of the simplex. A barycentric interpolation technique may then be used to map the unlimited simplex onto a corresponding simplex within the colorant-limited polytope.
Abstract:
Aspects of the present invention are related to systems, methods and apparatus for calibration of multiple display apparatus in a display ensemble.
Abstract:
Systems and methods for utilizing metadata embedded in a color measurement target to uniquely identify the target through color measurement. A color measurement target is used for color calibration, color characterization, color adjustment and/or color correction of a color output device and includes a collection of color patches imaged by the output device, wherein metadata is embedded directly into the color patches of the color measurement target to uniquely identify the target through color measurement. The metadata-bearing patches in the target are used to communicate information through color measurement, and can contribute to the color characterization.
Abstract:
A method for designing a black generation transfer curve is described. A table is produced to convert a first signal in a first signal space to a second signal in a second signal space. Color measurement data of a device is obtained. The color measurement data relates to a signal-to-color response of the device. A black generation transfer curve is designed constrained by the color measurement data of the device.
Abstract:
Aspects of the present invention relate to methods and systems for determining output responses and device targets for multi-colorant output devices. Some aspects relate to methods and systems for multi-dimensional rectilinear sampling, transformation of samples from an unlimited colorant space to a colorant-limited space, obtaining additional samples within a colorant-limitation hyperplane and interpolation of values in a colorant-limited space.
Abstract:
An imaging system includes an imaging sensing device sensing an object having a first background color and a backing in opposing relationship with the object having a second background color which is substantially the same as the first background color. The imaging system determines at least one general bounding region of the object based upon a shadow cast onto backing by the object.