A light source calibration method and system

Abstract

The present application discloses a light source calibration method and system, wherein, the light source calibration method first obtains the standard white color of the test camera module under the standard light source and the input luminance value of the first preset value by testing the camera module under the standard light source. Balance calculation parameters; then use the standard white balance calculation parameters as the calibration standard of the light source of the platform to be tested, use the same test camera module to test under the light source of the platform to be tested, and when the obtained test white balance calculation parameters and When the difference between the standard white balance calculation parameters is less than the preset threshold, the current input brightness value is used as the calibration input brightness value, so that when the input brightness value of the light source of the platform to be tested is the calibration input brightness value, it can obtain the same input brightness as the standard light source. The value is an illumination environment with similar brightness when the value is the first preset value, thereby realizing the purpose of calibrating the light source of the platform to be tested.

Description

technical field [0001] The present application relates to the technical field of camera module exposure correction, and more specifically, relates to a light source correction method and system. Background technique [0002] With the continuous development of electronic equipment, the integrated camera or camera function has become one of the necessary functions of various electronic equipment. [0003] In the calibration process of the camera module, it is necessary to perform exposure correction on the camera module under the standard light source of the exposure correction (AE calibration) platform, so as to obtain the white balance calculation parameters obtained by the camera module under the standard light source of the exposure correction platform, The white balance calculation parameter is an important parameter for the white balance calculation of the camera module, and also an important parameter that determines whether the camera module can well reflect the color ...

AI Technical Summary

Problems solved by technology

[0004] However, when the use status of the standard light source of the exposure correction platform or its own state changes (such as light source attenuation or temperature change, etc.), it may cause the actual brightness value of the light under the same input brightness value of the exposure correction platform. changes, resulting in the camera module not getting an accurate white balance calculation parameter after exposure correction, which in turn affects the imaging quality of the camera module

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