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Image adjustment method and related image processing circuit

An image adjustment and image technology, applied in the field of image compensation, can solve problems such as over-compensation, unnatural picture, color cast, etc.

Active Publication Date: 2022-05-03
REALTEK SEMICON CORP
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Problems solved by technology

This prior art approach can only roughly offset the influence of infrared light, rather than making adjustments for the actual influence, which is more likely to cause over-compensation or RGB color shift
[0009] In addition, the method of the above prior art is to compensate all the pixels of the whole picture to the same degree, but usually the effect caused by infrared light is not evenly distributed on the whole picture, so the picture after compensation will look very unnatural

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  • Image adjustment method and related image processing circuit
  • Image adjustment method and related image processing circuit
  • Image adjustment method and related image processing circuit

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Embodiment Construction

[0026] Certain terms are used in the specification and subsequent claims to refer to particular elements. It should be understood by those skilled in the art that hardware manufacturers may use different terms to refer to the same element. This description and subsequent patent applications do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. The "comprising" mentioned throughout the specification and the following claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect electrical connection means. Therefore, if it is described in the text that a first device is coupled to a second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection mea...

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Abstract

An image adjustment method, comprising: receiving an image, and obtaining three primary color values ​​and infrared light values ​​obtained from the image; dividing the image into a plurality of blocks; The initial compensation coefficients of the three primary color values ​​and the infrared light value; and performing the following operations on each of the blocks: adjusting the initial compensation of the current block according to the respective initial compensation coefficients of a plurality of neighboring blocks around the current block coefficients to generate the adjusted compensation coefficients of the current block; and use the adjusted compensation coefficients of the current block to perform infrared light crosstalk compensation on the current block.

Description

technical field [0001] The present invention relates to an image compensation technology, especially related technology for compensating infrared crosstalk (infrared crosstalk, referred to as IR Crosstalk). Asymmetry automatically calculates the appropriate IR interference compensation parameters. Background technique [0002] When there is an IR component in the ambient light, it will pass through the IR pixel in the mixed RGBIr filter array to absorb light. However, in the three primary colors (R, G, B) and the infrared (IR) spectrum, there will be crosstalk ( crosstalk) phenomenon occurs, please refer to figure 1 The ideal spectrum of and figure 2 Spectrum with crosstalk phenomenon, this is because of interference between IR and RGB light, resulting in figure 2 The overlapping phenomenon shown. Today's sensor manufacturing technology cannot effectively block or absorb non-color signals. Therefore, when the light energy with a high IR component is present, the color ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/64
CPCH04N9/646
Inventor 邱仲毅黄文聪
Owner REALTEK SEMICON CORP
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