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US 2009/0267876 A1Published application
Methods and Systems for Image Compensation for Ambient Conditions
AssigneeSharp Laboratories of America, Inc.
InventorLouis J. Kerofsky
Life of this patent
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Abstract
Elements of the present invention relate to systems and methods for compensating an image for various ambient illumination conditions. In some embodiments, an image is compensated by modifying image code values to account for ambient conditions.
Claims20
A method for determining an image compensation method, said method comprising:
- a) selecting a reference ambient illumination level;
- b) determining a reference retinal response based on said reference ambient illumination level using a retinal model;
- c) determining an actual ambient illumination level in the vicinity of a display;
- d) determining an actual retinal response based on said actual ambient illumination level using said retinal model;
- and
- e) determining an image compensation value based on said reference retinal response and said actual retinal response.
3 more elements
A method for compensating an image for ambient illumination, said method comprising:
- a) selecting a reference ambient illumination level;
- b) determining an actual ambient illumination level in the vicinity of a display;
- c) determining an image compensation scaling function based on said actual ambient illumination level and said reference ambient illumination level;
- and
- d) adjusting image code values with said image compensation scaling function.
2 more elements
A system for compensating an image for ambient illumination, said system comprising:
- a) a storage for a reference ambient illumination level;
- b) a sensor for determining an actual ambient illumination level in the vicinity of a display;
- c) a compensation calculator for determining an image compensation scaling function based on said actual ambient illumination level and said reference ambient illumination level;
- and
- d) an image processor for adjusting image code values with said image compensation scaling function.
2 more elements
Dependencies are inferred from the claim text.