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Method for Bayer Data interplation

An interpolation and difference technology, which is applied in the field of electronic images, especially in the field of color image processing, can solve the problems of error diffusion and color distortion, and achieve the effect of simple calculation and avoiding color distortion.

Inactive Publication Date: 2009-08-19
SICHUAN PANOVASIC TECH
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  • Summary
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Problems solved by technology

Although this technology solves the computational complexity and handles the problem of edge direction, it only has the G component to calculate the gradient in the vertical and horizontal directions, and then performs bilinear interpolation in the minimum direction, because the G component concentrates the image Most of the information, so the gradient error interpolation causes color distortion, and the other two components are restored on the basis of the G component, thus causing error diffusion

Method used

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  • Method for Bayer Data interplation

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Embodiment Construction

[0017] In order to better understand the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, when detailed descriptions of existing prior art may obscure the subject matter of the present invention, such descriptions will be omitted here.

[0018] figure 1 It is an arrangement diagram of Bayer Data. This embodiment combines figure 1 The arrangement of the given Bayer Data will be explained.

[0019] 1. Restoration of missing G component pixels

[0020] (1) Use the R or B component contained in the current pixel to calculate the gradient value in the vertical direction, horizontal direction, and two diagonal directions, and select the direction of the minimum gradient value as the edge direction.

[0021] In this embodiment, use X to represent the color component value contained in the current pixel point, that is, the value of the R or B compone...

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Abstract

The invention discloses a method used for Bayer Data interpolation which includes steps as follows: calculating gradient value on three directions through R or B component contained by a present pixel point, selecting a pixel point containing G component on one side with minitype edge difference value of two edge direction sides for restoring G component of the present pixel point. The method solves problem of rough edge transition caused by bilinear interpolation. The method can restore lack B or R component in the present pixel point for avoiding color distortion of gradient color bilinear interpolation caused by mistake judgement.

Description

technical field [0001] The present invention relates to the technical field of electronic image, especially color image processing, and specifically relates to a method for Bayer Data interpolation. Background technique [0002] Signal-sensing cameras can detect changes in light intensity corresponding to pixels in a photo. In the color signal sensing camera system, the color filter array (CFA) can only regularly measure one of the colors of any given pixel unit. The image of this regular color distribution is called Bayer Data, which leads to signal sensing camera There can only be a rule to obtain one color for each pixel in the image, such as figure 1 shown. Therefore, it is necessary to use color interpolation technology to restore the other two colors of each pixel in the image. [0003] The current camera system can produce red, green and blue three colors. Use color interpolation technology to restore the image with only one color component per pixel to three colo...

Claims

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Application Information

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IPC IPC(8): H04N9/64
Inventor 李慧然袁梓瑾吴亚东鲁国宁
Owner SICHUAN PANOVASIC TECH
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