Color modeling of a photographic image
First Claim
1. Process for the modeling of photographic images which are produced by light modulators that modulate an intensity of incident light with respect to the spectrum according to light modulation data, wherein an image reproduction system model determines the light modulation data of the light modulators in response to image control data, the process comprising the steps of:
- a) calculating light modulation values (Ci) of the light modulators used for the image reproduction based on the input image control data by modeling the response of the image reproducing system model to the input image control data;
b) calculating, on the basis of the calculated light modulation values, modulation color values which describe the color values of the image which is represented by the light modulators and is generated upon light falling onto the light modulators.
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Abstract
A model is disclosed for a system of an image reproducing device and a medium, which produces an image by way of light modulators. A relationship between image control data and light modulation values is described by the model. A relationship is generated between the light modulation values and the modulation color values by a modeled light incidence onto the light modulators.
67 Citations
21 Claims
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1. Process for the modeling of photographic images which are produced by light modulators that modulate an intensity of incident light with respect to the spectrum according to light modulation data, wherein an image reproduction system model determines the light modulation data of the light modulators in response to image control data, the process comprising the steps of:
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a) calculating light modulation values (Ci) of the light modulators used for the image reproduction based on the input image control data by modeling the response of the image reproducing system model to the input image control data;
b) calculating, on the basis of the calculated light modulation values, modulation color values which describe the color values of the image which is represented by the light modulators and is generated upon light falling onto the light modulators. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21)
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2. Process for the modelling of photographic image data which control the production of a given image by way of an image reproduction system model, wherein the image reproduction system model reproduces the image by way of light modulators which modulate the intensity and/or spectrum of the incident light according to light modulation values, wherein the image reproduction system model determines the light modulation values of the light modulators in response to image control data, the process comprising the steps of:
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a) calculating light modulation values (Ci) based on modulation color values which describe the color values of the image reproduced by the light modulators upon light falling onto the image;
b) based on the calculated light modulation values, calculating image control data corresponding to the image which lead to the production of the image by way of light modulators when they are input into the image reproducing system model, in that the modeled answer of the image reproducing system model to incoming image data is inverted.
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20. Use of a model for an image reproducing system for the generation of photographic images in a process, an apparatus, a program or a business model, wherein the photographic images are reproduced by light modulators which modulate the intensity and/or spectrum of the incident light and the light modulation values of which describe the light modulation by the light modulators and whereby the image reproducing system model determines the light modulation values of the light modulators in response to image control data, the model comprising the steps of:
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generating a relationship between light modulation values (Ci) and the input image control data by modeling of the answer of the image reproducing system model to the input image control data; and
generating a relationship between the modulation color values of an image and the light modulation values (Ci) based on a modeled light incidence onto the light modulators.
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Specification