Isp fast ae convergence method, apparatus and device, and storage medium

Abstract

The invention relates to an isp fast ae convergence method and device, equipment and a storage medium, and the method comprises the steps: obtaining a photosensitive value and a current ae parameter value when a network camera is powered on and operates; judging whether the photosensitive value at the moment is in a mapping interval of a preset mapping table or not; when the current ae parameter value is in the mapping interval of the mapping table, judging whether the current ae parameter value is in a convergence stage or a stable stage; if the current ae parameter value is in a convergence stage, storing the ae parameter value mapped with the photosensitive value at the moment in the mapping table; and taking the stored ae parameter value as a preset current convergence numerical value of an automatic ae algorithm, and enabling the automatic ae algorithm to converge from the current convergence numerical value until the network camera acquires a first frame of stable image. The problem that it is difficult to rapidly obtain the matched ae parameters in the low-illumination environment through isp is solved. The method and the device have the effect of quickly obtaining the matched ae parameters in the low-illumination environment.

Description

technical field [0001] The present application relates to the technical field of imaging equipment, in particular to an ISP fast AE convergence method, device, equipment and storage medium. Background technique [0002] At present, battery ipc (ip camera, network camera) has higher and higher demand for fast start-up capture. The cmos sensor (complementary metal oxide semiconductor material image acquisition sensor) module has gradually appeared in the market. Calculate the stable exposure gain in time, and then linearly convert it into the ae parameter of normal resolution, so as to achieve the effect of fast image output and ae convergence and stability. [0003] However, in the low-light environment, it is difficult to quickly obtain the matching ae parameters by the above method, and the performance effect of ipc is mediocre. [0004] With regard to the related technologies mentioned above, the inventor believes that there is a defect that it is difficult to quickly ob...

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Problems solved by technology

[0003] However, the above method is difficult to quickly obtain the matching ae parameters in a low-light environment, and the performance of ipc is average.

[0004] In view of the above-mentioned related technologies, the inventor believes that there is a defect that it is difficult to quickly obtain the matching ae parameters in the low-light environment of the existing isp

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