US 2011/0032380 A1Published application

Printing system and method

AssigneeCanon Kabushiki Kaisha

InventorYuki Ishida

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Abstract

Color charts each formed from patches corresponding to different colors are uniformly arranged at different positions on a print medium almost equal in size to an object to be photographed by a camera. The printed color charts are photographed by the camera one by one so that one color chart falls within the photographing range of the camera while keeping the distance between the camera and the print medium constant, acquiring photographing data. Under the same conditions, parts of the object are photographed one by one so that a part of the object at the same position as the position of one photographed color chart on the print medium falls within the photographing range of the camera, acquiring photographing data. Color coordinate values are acquired from the photographed color charts. By using the values, the color of the acquired photographing data is converted. The printing apparatus prints the converted data.

Claims8

Dependent claims

A printing method executed in a printing system including a photographing unit for photographing an object, an information processing apparatus, and a printing apparatus, the method comprising:

a first acquisition step of causing the information processing apparatus to acquire photographing data obtained by photographing, by the photographing unit, a color chart formed from a plurality of patches including at least two patches representing a predetermined color;
a second acquisition step of causing the information processing apparatus to acquire photographing data obtained by photographing the object by the photographing unit under the same ambient light as an ambient light used to photograph the color chart in the first acquisition step;
a correction step of causing the information processing apparatus to correct, based on the photographing data of the color chart that has been acquired in the first acquisition step, the photographing data of the object that has been acquired in the second acquisition step;
and
a printing step of causing the information processing apparatus to print by the printing apparatus using the photographing data of the object that has been corrected in the correction step.

2 more elements

Dependencies are inferred from the claim text.