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Method and device for eliminating image color deviation

A color deviation and image technology, applied in the field of image color deviation elimination, can solve problems such as increasing the cost of lens sets, and achieve the effect of eliminating/improving image color deviation

Inactive Publication Date: 2015-12-02
NOVATEK MICROELECTRONICS CORP
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  • Description
  • Claims
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Problems solved by technology

The traditional technology uses a combination of multiple lenses to achieve the purpose of eliminating color deviation, but this traditional technology needs to change the optical design of the lens group and increase the cost of the lens group

Method used

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  • Method and device for eliminating image color deviation
  • Method and device for eliminating image color deviation
  • Method and device for eliminating image color deviation

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Embodiment Construction

[0025] In the following embodiments, the optical correction is performed in consideration of the three characteristics that cause the optical color deviation. Property one is that the degree of color shift is roughly proportional to the distance from the pixel position to the optical center of the image. The second feature is that the color deviation mostly occurs at places where the contrast between adjacent pixels is sharp, such as the edge of image details. The third feature is that the color deviation will have different color performance at the positive edge and negative edge (negative) of the edge of the image details. The following embodiments will eliminate the color deviation according to one or more of the three characteristics, so that the quality of the image can be correctly estimated and the quality of the image will not be damaged. For example, in one embodiment, optical correction is performed considering characteristic one alone. In some other embodiments, c...

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Abstract

The invention provides a method and device for eliminating an image color deviation. The method comprises that a position weight of a pixel is computed according to the position of the pixel relative to an image, and an edge response of the pixel is computed. And then color information of the image pixel is converted into hue information. The edge response of the pixel is applied to compute a hue scope. Finally, the position weight, the edge response and / or the hue scope are applied to correct color information of the image pixel.

Description

technical field [0001] The present invention relates to an electronic device, and in particular to a method and device for eliminating image color deviation. Background technique [0002] Due to the development of technology, the volume of the optical components of the image capture device is getting smaller and smaller. The image color deviation of the image capture device is the color deviation phenomenon caused by the light passing through the optical lens at different image height positions. The traditional technology uses a combination of multiple lenses to achieve the purpose of eliminating the color aberration phenomenon. However, this traditional technology needs to change the optical design of the lens set and increase the cost of the lens set. Contents of the invention [0003] The invention provides a method and device for eliminating image color deviation, which can effectively eliminate / improve image color deviation. [0004] An embodiment of the present inv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/58H04N1/60H04N9/64
Inventor 杨智源袁奕雯林孟婷
Owner NOVATEK MICROELECTRONICS CORP
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