Method for compensating bad dots on digital images

A digital image and dead pixel technology, applied in image communication, color TV parts, TV system parts, etc., can solve the problems of insignificant improvement of image quality, large amount of calculation, complex processing, etc., and achieve reduction of calculation volume, enhancements, effects that improve image quality
CN1655588AActive Publication Date: 2005-08-17VIMICRO ELECTRONICS CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
VIMICRO ELECTRONICS CORP
Publication Date
2005-08-17

Smart Images

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Abstract

This invention discloses digit image ruined points compensation method aiming to YUV data compensation, which comprises the following steps: getting current picture element YUV heft and the nearby at least four elements YUV heft; judging whether the current points are bad points according to the difference between current picture elements and nearby picture elements; if there are, then compensating the current element with nearby picture elements.
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Description

technical field

[0001] The invention relates to the field of digital image processing, in particular to a method for compensating dead pixels of digital images. technical background

[0002] At present, digital imaging products such as computer cameras, mobile phone cameras, digital cameras, and camcorders use image sensors mostly of RGB Bayer type, and their original output data formats are shown in Figure 1: Odd numbers behave GRGR..., even numbers behave BGBG..., This is how the image sensor array is arranged on the lens. It can be seen that each 2*2 pixel block contains two G components and one R and B components. RGB format data means that each pixel contains RGB components, and the RGB value of each pixel is calculated by interpolation based on the original output RGB Bayer data of each pixel around the pixel.

[0003] Due to the limitations of current technology for manufacturing image sensors, various digital imaging products may have dead pixels. The so-called de...

Claims

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