Patent ID: 7835044
Filing Date: 2010-11-16
Classification: H04N

Abstract:
1. A non-transitory computer-readable storage medium storing a computer program that, when executed, causes an image processing system to implement a method comprising: using rank-ordering of the fractional delta values to identify a tetrahedron that contains a mapped input point and calculating the formula 1/(2^(n−1)) [Δ0*P0i+Δ1*P1i+Δ2*P2i+Δ3*P3i], where n represents the number of bits used, and the fractional delta values Δ0, Δ1, Δ2, Δ3 are computed according to the table: retrieving tetrahedron node values in pairs such as CM and YK or as quad word CMYK from a 3D lookup table; using the values directly in instructions that compute interpolation outputs; packing interpolation outputs based on use of dual or quad instructions; and adjusting packed interpolation output using a byte to byte mapping 1D TRC lookup tables.