Image analysis – Color image processing – Color correction
Patent
1994-08-02
1995-11-14
Raeavi, Michael T.
Image analysis
Color image processing
Color correction
382254, 348 97, 358518, G06T 500
Patent
active
054674123
ABSTRACT:
An operator input subsystem and an image signal processing subsystem are provided to a digital image processing system. The operator input subsystem comprises a CPU, a display device and an input device, whereas the image signal processing subsystem comprises a digital signal processor having a number of digitized signal correctors. For cases where the output results are expressible as smoothly differentiable continuous functions of the digitized input signal values and the processing parameters, the CPU receives the specified output results from the input device and the digitized input signal values and the current processing parameters from the digitized signal correctors. In response, the CPU determines the most optimal processing parameters for the digitized signal correctors to achieve the specified output results. The CPU provides the determined optimal processing parameters to the digitized signal correctors, which in turn use the parameters to correct the digitized signals. The CPU makes the determination by performing a standard non-linear optimization of the smoothly differentiable continuous function. As a result, the increasingly difficult task of providing processing parameters to the image signal correctors is done automatically for the operator, thereby making the image processing system more efficient and user friendly.
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Capitant Patrice J.
Collier David C.
Chang Jon
Raeavi Michael T.
Sony Electronics Inc.
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