Patent ID: 7652806

Claim:
A method for optimal node placement of a color correction table, the method comprising: generating a first color correction table having a first number of nodes at a first set of node locations, each of the first number of nodes having a corresponding color correction value; generating a second color correction table, the second color correction table having a second number of nodes at a second set of node locations corresponding to the second number of nodes, the second number of nodes being less than the first number of nodes, and each of the second number of nodes having a corresponding color correction value based on the first color correction table; generating a third color correction table having a third number of nodes at a third set of node locations, the third number of nodes being greater than the second number of nodes, and each of the third number of nodes having a corresponding color correction value based on the second color correction table; determining differences between the color correction values of the third color correction table and the color correction values of the first color correction table; quantifying the differences into a measure of error; adjusting node locations of the second set of node locations; repeating the steps of generating a second color correction table, generating a third color correction table, determining differences, and quantifying the differences at least one time; and wherein the above steps are performed by a processor.