Image scanning system and method
AssigneeCanon Kabushiki Kaisha
InventorsYuichi Sato, Yasuyuki Oiwa
Life of this patent
Estimating the term…
Abstract
In an image scanning system which can scan an image in a plurality of scanning modes, and has a memory for storing a correction data file which has correction data for each of the plurality of scan modes, correction data corresponding to a scan mode of a given image scan operation is read out from the memory upon scanning an image, and an image scan is executed using the readout correction data. If correction data corresponding to the scan mode of that image scan operation is not stored in the memory, correction data corresponding to the scan mode is generated, and is stored in the memory.
Claims19
An image scanning system capable of scanning an image in a plurality of scan modes, comprising:
- a memory adapted to store correction data for each of the plurality of scan modes and information indicating the scan count;
- and
- a controller adapted to update correction data stored in said memory when a scan count has reached a predetermined value, wherein said controller checks upon scanning an image if correction data corresponding to a scan mode of that image scan operation is stored in said memory, and if the correction data is not stored, controls to generate correction data corresponding to the scan mode, and to execute an image scan using the generated correction data.
An image scanning method in an image scanning system which can scan an image in a plurality of scan modes, and has a memory for storing correction data for each of the plurality of scan modes and information indicating the scan count, comprising:
- updating correction data stored in the memory when a scan count has reached a predetermined value;
- scanning an image in one of said plurality of scan modes;
- correcting the scanned image using the correction data, stored in the memory, corresponding to the scan mode used in scanning the image;
- checking upon scanning an image if correction data corresponding to a scan mode of that image scan operation is stored in said memory;
- if the correction data is not stored, controlling to generate correction data corresponding to the scan mode;
- and
- executing an image scan using the generated correction.
A computer program product comprising a computer readable medium having computer readable program code means embodied in said medium for an image scanning method in an image scanning system which can scan an image in a plurality of scan modes, and has a memory for storing correction data for each of the plurality of scan modes and information including the scan count, said product including:
- first computer readable program code means for updating correction data stored in the memory when a scan count has reached a predetermined value;
- second computer readable program code means for generating correction data corresponding to the scan mode;
- third computer readable program code means for checking upon scanning an image if correction data corresponding to a scan mode of that image scan operation is stored in said memory;
- fourth computer readable program code means for, if the correction data is not stored, controlling to generate correction data corresponding to the scan mode;
- and
- fifth computer readable program code means for executing an image scan using the generated correction.
Dependencies are inferred from the claim text.