Patent ID: 8259128

Claim:
A method of processing a source image, in which said source image is decomposed by a hardware element in a decomposition color space into a series of n component images and in which each source pixel which belongs to a plurality of decomposed pixels of this source image has a corresponding series of component pixels respectively in each of said component images, wherein, if, in said decomposition space, the set of the color vectors accessible to a display device intended to display said source image forms a three-dimensional gamut of colors, and if, for each source pixel which belongs to said plurality of decomposed pixels, a source point P S0j is used to represent the end of the color source vector OP S0j associated with said source pixel E S0j , and component points P lj , P 2j , . . . , P kj , . . . , P nj are used to represent the ends of the color component vectors OP 1j , OP 2j , . . . , OP kj , . . . , OP nj associated with said component pixels of the series which corresponds to said source pixel, said source image is decomposed such that, for each source pixel of said plurality, said component points P lj , P 2j , . . . , P kj , . . . , P nj associated with the component pixels corresponding to said source pixel are all located in said three-dimensional color gamut and the barycenter of said component points P lj , P 2j , . . . , P kj , . . . , P nj corresponds to said source point P S0j , wherein, for each source pixel of said plurality, if, still within said decomposition space, there is defined a limit sphere which is centered on the source point P S0j associated with said source pixel and the surface of which contains a series of n limit points P ljL , P 2jL , . . . , P kjL , . . . , P njL , the barycenter of which approximately coincides with the source point P S0j and which present the greatest possible distance between them while being included, including limits, in said three-dimensional gamut, and, if a scrambling factor K S0j of said source pixel E S0j of said source image I S0j is defined which is less than or equal to 1 and greater than or equal to 0.5, said source image is also decomposed such that the distances between said source point P S0j and each of said component points P lj , P 2j , . . . , P kj , . . . , P nj associated with the component pixels corresponding to said source pixel are all greater than or equal to K S0j times the radius L S0j of said limit sphere.