Patent ID: 8891131

Claim:
A system, comprising: an image data source configured to provide image data; a transfer function module configured to generate a transfer function to process the image data, define a first region of the transfer function, wherein a curvature of the transfer function in the first region is less than or equal to a threshold, define a second region of the transfer function, wherein a curvature of the transfer function in the second region is greater than the threshold, allocate a first number of sample inputs of the image data to the first region of the transfer function, allocate a second number of the sample inputs of the image data to the second region of the transfer function, wherein the second number is greater than the first number, map the sample inputs to sample outputs using the transfer function, wherein the sample outputs correspond to outputs of the transfer function, and populate entries of a lookup table with the sample outputs; and a processor configured to process the image data based on the entries of the lookup table.