Lost color vector reconstruction method and device

Abstract

The invention discloses a method for reestablishing loss chromatic value component and a device therefor, which can improve definition of edge images whose chromatic value is reestablished. The invention is applied to a pixel point to be reestablished in a Bel image pixel point matrix, comprises following steps: according to acquired isochromatic value component on a first group of pixel points which surround the pixel point to be reestablished in the image pixel point matrix, calculating the smallest chromatic difference change estimated value Cv in the vertical direction and the smallest chromatic difference change estimated value Ch in the horizontal direction, wherein besides pixel points which are in the same line or the same row with the pixel point to be reestablished, the first group of pixel points also comprises other pixel points; according to the smallest chromatic difference change estimated value Cv in the vertical direction and the smallest chromatic difference change estimated value Ch in the horizontal direction, determining the second chromatic value component. Moreover, the invention also provides a device for reestablishing loss chromatic value component.

Description

technical field [0001] The invention relates to a method for reconstructing lost color value components, in particular to a method for reconstructing lost color value components applied to a pixel to be reconstructed in a Bell pattern pixel matrix. In addition, it also relates to a lost color value component reconstruction device. Background technique [0002] In today's camera market, digital cameras have almost replaced traditional cameras and become the mainstream. The biggest difference is that traditional cameras use photosensitive film to sense images, while digital cameras use charge coupled devices (Charge Coupled Devices, CCD for short) or complementary metal-oxide-semiconductor transistor sensor (CMOS sensor) to sense images. However, since the CCD or CMOS sensor can only sense the intensity of light, it cannot sense the color change. Therefore, when the digital camera needs to have the ability of color image sensing, the manufacturer must add a color filter (Col...

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Problems solved by technology

[0007] Based on the above reasons, it can be known that the current color value reconstruction method is still unable to effectively reflect the image edges in all directions, so there is still considerable room for improvement in the reconstructed color error, and how to improve the above existing methods in this respect The lack of the above, for the development of the main purpose of the present invention

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