Apple Inc.

Samuel A Figueroa

Jay Zipnick

A system that adjusts chroma and luma values for a video signal is presented. During operation, the system receives a matrix of coefficients, which when applied to the chroma values and the luma values of a video signal produces substantially the same result as performing a sequence of discrete operations on the chroma values and the luma values, wherein the sequence of discrete operations includes one or more color-representation-conversion operations and one or more processing amplifier operations. For a given pixel of the video signal, the system performs a matrix-multiplication operation between a matrix representation of the chroma values and the luma values for the given pixel and the matrix of coefficients to produce a modified pixel.

Method and apparatus for adjusting chroma and luma for a video signal

An exceptional situation manager associates exceptional situations with nonstandard values and desired responses to perform when specific exceptional situations occur during computations. A desired response can comprise returning an associated nonstandard value, performing an associated nonstandard action or returning a default value. The exceptional situation manager ascertains the occurrence of exceptional situations during computations. Responsive to such an occurrence, the exceptional situation manager determines the desired response associated with the exceptional situation that occurred, and executes the desired response.

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Fremont, CA, United States of America

Samuel A Figueroa