Electronic device, method for controlling electronic device, and computer-readable storage medium

By using the wide-angle camera module to obtain more grayscale statistics and support AWB calculations for long-focus cameras, the problem that traditional cameras cannot estimate light sources effectively is solved, and more appropriate white balance is achieved, avoiding the long-focus photo being too dark question.

CN115918103BActive Publication Date: 2024-12-20GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
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Patent Information

Application Number
CN202080101473.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-06-02
Publication Date
2024-12-20
Estimated Expiration
2040-06-02

AI Technical Summary

Technical Problem

The automatic white balance (AWB) algorithm of traditional cameras cannot achieve light source estimation by combining wide-angle FOV and long-focus FOV, resulting in long-focus photos being too dark because there is a lack of sufficient grayscale statistics for white objects.

Method used

By using the wide-angle camera module to obtain more grayscale statistics under the control of the image signal processor, it supports AWB calculation of the long-focus camera, calculates the white balance gain and mixes the camera images to obtain more appropriate white balance.

Benefits of technology

A more appropriate white balance is achieved in the long-focus camera image, avoiding excessive graying due to wrong white balance.

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Abstract

An electronic device according to an embodiment of the present disclosure includes: a telephoto camera module for taking a photo of an object to obtain a telephoto camera image; a wide-angle camera module for taking a photo of an object using a viewing angle wider than that of the telephoto camera module to obtain a wide-angle camera image; and an image signal processor for controlling the telephoto camera module and the wide-angle camera module to obtain a camera image based on the telephoto camera image and the wide-angle camera image.
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