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Method and equipment for correcting length of image in flat-bed scanner

A scanner and flatbed technology, applied in the field of flatbed scanners, can solve problems such as multi-time, error in image length, error in image length, etc.

Inactive Publication Date: 2004-08-04
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to this adjustment, it takes more time to develop a new flatbed scanner
[0004] In addition, there is an error in the length of the image, and the error varies with different flatbed scanners. Since the same compensation is made for the above-mentioned errors when the flatbed scanner is developed, there is an error in the image length that cannot be accurately calculated. calibration problem

Method used

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  • Method and equipment for correcting length of image in flat-bed scanner
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  • Method and equipment for correcting length of image in flat-bed scanner

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Embodiment Construction

[0016] Now, embodiments of the present invention will be explained in detail by referring to the accompanying drawings, in which like reference numerals represent like parts throughout. The embodiments are described below to explain the present invention by referring to the figures.

[0017] First, a method of correcting an image length in a flatbed scanner according to an embodiment of the present invention will be described.

[0018] FIG. 1 is a flowchart explaining a method of correcting an image length in a flatbed scanner according to an embodiment of the present invention. The method shown in Fig. 1 comprises the following operation steps: the predetermined pattern is read from front to back, while moving the image sensor (operation steps 10, 12, 14 and 16), and by using between the first number of pixels and the second number of pixels The difference corrects the length of the image (operations 18, 20 and 22).

[0019] figure 2 is a schematic diagram of one embodimen...

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Abstract

A method and an apparatus to correct the length of an image in a flatten scanner. The method includes moving an image sensor by driving a motor; calculating a first number of pixels; calculating a difference between the first number of pixels and a second number of pixels; and correcting the length of the image scanned in the flatten scanner by using the calculated difference. Therefore, the method makes it possible that a scanned image can have the same length as that of an original image by using the difference between the first and second numbers of pixels. In addition, when a flatten scanner is developed, necessity for fine adjustment to correct the length of a scanned image is eliminated, and, therefore, time required to develop a scanner is shortened.

Description

[0001] The priority application claimed by this application is Korean Patent Application No. 2003-3252 filed with the Korean Intellectual Property Office on January 17, 2003, the disclosure of which is incorporated herein by reference in its entirety. technical field [0002] The invention relates to a flatbed scanner, in particular to an image length correction method and device capable of correcting the length of an image scanned in the flatbed scanner. Background technique [0003] In conventional flatbed scanners, the scanned image length cannot be corrected alone. Therefore, in order to correct the length of the image scanned in the flatbed scanner, it is necessary to carefully adjust the length of the image in advance (ie, when the flatbed scanner is developed). Due to this adjustment, it takes more time to develop a new flatbed scanner. [0004] In addition, there is an error in the length of the image, and the error varies with different flatbed scanners. Since the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20G06T5/00H04N1/00H04N1/10H04N1/193
CPCH04N1/00013H04N1/00031H04N1/1017G06T5/006H04N1/00087H04N1/1026H04N1/0005H04N1/00063H04N1/00068H04N1/00045H04N1/00002H04N1/193G06V10/10
Inventor 朴成圭
Owner SAMSUNG ELECTRONICS CO LTD