An interpolation method and device for color filter array

Abstract

The related color filter array interpolation device comprises: a horizontal / vertical interpolation unit to calculate RGB component interpolation of pixel point (m, n) according to original measured data, a horizontal / vertical brightness and color distance calculation unit to calculate the brightness and color distances of point (m, n) and its near point, a distance comparison unit to determine the direction with less distance, and a selective output unit to output the interpolation with less distance as final value. This invention is benefit to obtain clear image.

Description

technical field [0001] The invention relates to a color filter array interpolation method, in particular to a Bayer mode color filter array interpolation method. Background technique [0002] The optical sensor of the digital image capture device usually adopts CCD (Charge-coupled device, charge-coupled device) or CMOS (Complementary Metal Oxide Semiconductor, complementary metal oxide semiconductor) technology, which consists of photosensitive elements (CCD or CMOS) consists of a two-dimensional matrix, while CCD or CMOS sensors can only sense light brightness, not color information. Therefore, a color filter array (Color Filtered Array, CFA) must be used to ensure that each sensor pixel receives only one color of light: usually one of the three colors red, green, and blue. The color filter array can use different modes, the most commonly used is the color filter array of Bayer mode. Bayer patterns alternate a set of red and green filters and a set of green and blue filte...

AI Technical Summary

Problems solved by technology

Although the amount of calculation is relatively small in this way, the color and brightness of the generated image are inconsistent, blurred, and produce false colors.

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