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US 2006/0078216 A1Published application
Image correction apparatus, method and program
AssigneeFuji Photo Film Co., Ltd.
InventorToshihiko Kaku
Life of this patent
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AssigneeFuji Photo Film Co., Ltd.
InventorToshihiko Kaku
Estimating the term…
An identification-data memory is connected to a light-source identifying circuit. Data representing a type of characteristic quantity to be used in making an identification and identification points are stored in the identification-data memory with regard to each type of a plurality of light sources. Based upon input image data, a characteristic quantity is read out and identification points decided in accordance with the identification-data memory. The type of light source that was used to acquire an image represented by image data to be processed is discriminated in accordance with the identification points that have been decided. A color temperature that corresponds to the light-source type discriminated is set in a color-temperature setting circuit, and gray pixels having the set color temperature are extracted from the input image. White-balance correction coefficients are decided based upon the gray pixels extracted.
An image correction apparatus comprising:
An image correction method comprising the steps of:
A program for controlling a computer having an identification data memory storing, with regard to one or each of a plurality of light-source types, data representing a type of characteristic quantity that takes on values in which values obtained based upon an image that has been acquired by taking a picture under a light source of one light-source type and values obtained based upon an image that has been acquired by taking a picture under a light source of another light-source type are distinguished from each other, wherein the program causes the computer to execute the following processing:
Dependencies are inferred from the claim text.