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Image correction method

An image correction and image technology, which is applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problems of dispersion image, distortion, etc.

Inactive Publication Date: 2008-09-10
AVISION PRECISION IND (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] According to the purpose of the present invention, an image correction method is proposed to solve the problem of image distortion caused by dispersion of light after passing through the lens group

Method used

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Embodiment Construction

[0018] Please refer to figure 2 , figure 2 Shown is a flowchart of an image correction method according to a preferred embodiment of the present invention. First, in step 302, an image capture resolution is selected. For example, the user selects an image capture resolution of an image capture device or the default resolution of the image capture device itself is N (dot per inch, dpi), where the value of N is a positive integer. Next, enter step 204, perform an image capture operation on a file to be image captured, and obtain several original image signals according to light rays of different wavelengths. For example, an image capture operation is performed on a file to be captured with a width of M, and several original image signals are obtained from the data, and each original image signal has several brightness values. Wherein, M is a positive integer, and the image signal at least includes a red (R) image signal, a green (G) image signal and a blue (B) image signal....

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Abstract

The present invention relates to an image correction method applicable to image-picking device. Said method includes the following steps: firstly, selecting an image-picking resolution ratio, then image-picking a file to be image-picked so as to obtain several original image signals, then according to image-picking resolution ratio and width of the file to be image-picked respectively using numerical method to correct all the original image signals and respectively forming a corrected image signal, then synthesizing these corrected image signals to form a corrected images. Said invention can compensate the image defect problem resulted from colour dispersion, and can raise quality of image.

Description

technical field [0001] The invention relates to an image correction method, in particular to an image correction method suitable for an image capture device to numerically correct captured image signals according to the image capture resolution. Background technique [0002] The current image capture device at least includes a lens group and a light sensing module. When the image capture device performs an image capture operation of a document to be captured, firstly, the light reflected by the document to be captured or the light transmitted through the document to be captured passes through the lens group and reaches the light sensing module. The above-mentioned light is composed of three different wavelengths of light, red (R), green (G), and blue (B), which are necessary to form an image. Therefore, in fact, the light sensing module at least includes a red light (R) sensing unit, a green light (G) sensing unit and a blue light (B) sensing unit. [0003] Next, the photo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/20G06K9/03
Inventor 阙壮华
Owner AVISION PRECISION IND (SUZHOU) CO LTD