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A lighting control method and computer-readable storage medium

A light control and light adjustment technology, applied in the field of image processing, can solve the problems of face overexposure and processing difficulties

Active Publication Date: 2022-03-04
TIANJIN TIANDY DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a lighting control method and a computer-readable storage medium, so as to alleviate the technical problem of processing difficulties in the processing of human face overexposure in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 As shown, a light control method according to an embodiment of the present invention is applied to a camera, and a method includes:

[0050] S1: Judging whether there is a face exposure.

[0051] If yes, S2 is executed.

[0052] S2: Generate a light adjustment mark containing the fast drop light intensity.

[0053] S3: Determines if the AE adjustment speed is within the range of the reduction threshold.

[0054] If not, S4 is executed; if yes, S5 is executed.

[0055] S4: Reduce the AE adjustment speed and return to step S3.

[0056] S5: Judging whether the dynamic image parameters are in the dynamic tolerance threshold range.

[0057] If not, S6 is executed.

[0058] S6: Light adjustment according to the light adjustment tag.

[0059] Combined with deep learning human formation, it is integrated whether there is a face in the image, and whether it is exposed, when a face exposure is exposed in a row, it is considered that there is a face exposure. The reduc...

Embodiment 2

[0062] Such as figure 2 As shown, a light control method according to an embodiment of the present invention is applied to a camera, and a method includes:

[0063] S1: Judging whether to reach the light adjustment limit.

[0064] If so, step S2 is performed, and if, step S3 is performed.

[0065] S2: End Treatment. Continue to perform light control over the next frame image, returns to step S1.

[0066] S3: Judging whether there is a face exposure.

[0067] If yes, step S10 is performed; if, step S4 is performed.

[0068] S4: Judging whether the gain is not adapted to the light intensity.

[0069] If so, step S5 is performed; if not, step S7 is performed;

[0070] S5: Determine if the current image statistics is determined within the static tolerance range.

[0071] If so, step S2 is performed; if, step S6 is performed.

[0072] S6: Generates a light adjustment tag containing light intensity.

[0073] S7: Judging whether the actual image brightness and the target image brightness...

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Abstract

The invention provides a lighting control method and a computer-readable storage medium, which belong to the technical field of image processing and solve the technical problem of processing difficulties in the processing of overexposure of human faces in the prior art. A lighting control method applied to a video camera, the method comprising: judging whether there is a human face overexposure; if there is a human face, generating a lighting adjustment mark containing a rapidly decreasing light intensity, and judging whether the AE adjustment speed is within the speed reduction threshold range If it is not within the speed reduction threshold range, then reduce the AE adjustment speed, and return to the step of judging whether the AE adjustment speed is within the speed reduction threshold; if it is within the speed reduction threshold range, then judge whether each dynamic image parameter is within the dynamic tolerance within the threshold range; if not all within the dynamic tolerance threshold range, perform light adjustment according to the light adjustment mark.

Description

Technical field [0001] The present invention relates to the field of image processing, and more particularly to a light control method and a computer readable storage medium. Background technique [0002] In video surveillance, when the scene at night or other illuminance needs to be infrared or white, due to the strong ability of face reflection, the reflective ability of other scenes in the environment is often large, while in the scene The person may move to a closer location, increase reflectance, causing human face exposure, and cannot obtain face information. [0003] Currently, it is often handled on the face exposure problem in AE (Auto Exposition, Automatic Exposure). However, the solution based on AE and other modules cannot handle problems due to the dynamic range dynamic range of the face reflective. When the face is exposed, the environment is not exposed. However, the solution based on the lighting algorithm has a problem that is easy to cause the lighting system. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232H04N5/235H05B47/10
CPCH05B47/10H04N23/611H04N23/741H04N23/71H04N23/74
Inventor 戴林薛超于宏志韩强林一阳张云飞
Owner TIANJIN TIANDY DIGITAL TECH
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