Sharp Laboratories of America, Inc

Chizu Watanabe

James Zhixin Chang

John Charles Dalrymple

John Dairymple

A method is provided for gamut clipping with preprocessing enabled as software instructions stored in a computer-readable medium and executable by a processor. The instructions provide a color in a color space defined by at least three attributes. If the color lies outside a gamut boundary in the first color space, a distance is measured from the color to the gamut boundary. In response to the measured distance, a weight is calculated for an attribute of the color. Then, it is determined if the attribute of the color is to be shifted. If so, an attribute shift amount is derived. The attribute shift amount of the color is modified by applying the weighting. The attribute of the first color is shifted by the weighted attribute shift amount, creating a post-processed color. The post-processed color is then clipped.

Gamut clipping with preprocessing

Aspects of the present invention are related to systems, methods and apparatus for calibration of multiple display apparatus in a display ensemble.

Methods, systems and apparatus for jointly calibrating multiple displays in a display ensemble

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.

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Camas, WA, United States of America

Chizu Watanabe