Patent ID: 7206099

Claim:
A method of compensating for system performance changes related to a combination of image attributes in an image rendering system, the method comprising: selecting a first image attribute; selecting a second image attribute; changing a value of at least one of the first attribute and the second attribute; rendering a diagnostic image based on the changed value of the first and second attribute combination; sensing an image quality from the rendered diagnostic image; reporting the sensed image quality to a compensation processor; the compensation processor comparing the reported sensed image quality to expected target system performance values; the compensation processor calculating first attribute/second attribute tone reproduction curve or compensating lookup table data based on the sensed image quality if the compensation processor determines that there is a significant difference between the expected target system performance values and the reported sensed image quality; storing the first attribute/second attribute tone reproduction curve or lookup table data for use in rendering images having the changed first and second attribute combination values; receiving production image data for a production image having the first and second attribute values; and, applying the stored first attribute/second attribute tone reproduction curve or lookup table data to the received production image data, thereby generating compensated image data.