Patent ID: 6809837
Filing Date: 2004-10-26
Classification: H04N

Abstract:
A method for online predicting an analytical model for a dynamically varying color reproduction device including a sensor for detecting a signal representative of device color output, wherein color processing of the device is represented by a preselected form of an analytical model comprising initially an inaccurate set of parameters, the method including steps of:producing an image with the device in response to an input signal; sensing with the sensor an output signal representative of the image; computing from the model a model output in response to the input signal and comparable to the image output signal; determining an error between the image output signal and the model output; generating an updated set of parameters for the model from a prediction algorithm utilizing the error and applying the updated set to the model; and, recursively executing said steps with subsequent input signals until said error is less than a predetermined value whereby the analytical model including the updated set of parameters comprises an accurate representation of device operation.