A white balance correction method, device, storage medium and terminal equipment

A correction method and white balance technology, applied in the field of image processing, can solve the problems of easy misjudgment, too simple judgment, low judgment accuracy, etc., and achieve the effect of improving accuracy, stabilizing white balance effect, and good color reproduction.

Active Publication Date: 2022-05-31
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these solutions are not comprehensive. For example, the similarity between tungsten lamps and daylight light sources is not considered, and the judgment is too simple, which is prone to misjudgment, which makes the accuracy of indoor / outdoor judgments low.

Method used

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  • A white balance correction method, device, storage medium and terminal equipment
  • A white balance correction method, device, storage medium and terminal equipment
  • A white balance correction method, device, storage medium and terminal equipment

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Experimental program
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Embodiment Construction

[0039] For indoor / outdoor judgment, there are already some solutions. But current solutions are mostly only

[0041] Referring to FIG. 1, it shows a schematic flowchart of a white balance correction provided by a related technical solution. As shown in Figure 1

[0044] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0050] The image data obtained by the camera is input to the preset classifier;

[0051] Through the preset classifier, the initial classification result and the initial confidence level of the light source are output.

[0052] It should be noted that the preset classifier may be a binary classifier, that is, the current environment is classified as indoor or outdoor.

[0058] Based on the obtained spectrum channel value, calculate the infrared band ratio and color temperature information of the light source.

[0059] It should be noted that the color temperature is a feature that visible ligh...

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Abstract

The embodiment of the present application discloses a white balance correction method, device, storage medium and terminal equipment. The method includes: based on the image data acquired by the camera, determining the initial classification result and initial confidence of the light source; based on the data acquired by the color temperature sensor, Determine the infrared band ratio and color temperature information of the light source; calculate according to the infrared band ratio, the color temperature information, and the initial confidence level to obtain the target confidence level; when the target confidence level is less than the preset threshold, by Adjusting the initial classification result to obtain a target classification result; determining a target white balance parameter according to the target classification result, and performing white balance correction on the image data according to the determined target white balance parameter.

Description

A white balance correction method, device, storage medium and terminal device technical field The application relates to the technical field of image processing, in particular to a white balance correction method, device, storage medium and Terminal Equipment. Background technique White balance (White Balance) is an important concept in the field of photography, through which the color can be solved. A series of problems such as restoration and toning processing. For different light sources, the color of the light emitted by it is different, resulting in the reflection of the object. The light color is also different. Then when the object is photographed through the terminal device, due to the influence of the light source, it is likely to cause The object being photographed has a color cast phenomenon. At this time, it is necessary to distinguish the indoor light source from the outdoor light source. According to the indoor / outdoor light source Select the corres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/04H04N9/73
CPCH04N23/10H04N23/88H04N9/73
Inventor 顾海婷
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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