An Intelligent Enhancement Method Based on Statistical Mean Value of Historical Frame Images
A technology of frame images and historical frames, applied in the field of intelligent enhancement based on the average statistics of historical frame images, can solve the problems of manual adjustment, inability to meet the complex and changeable practical application environment, time-consuming and labor-intensive, etc., and achieve the effect of soft images.
Active Publication Date: 2018-04-20
CHENGDU GUOYI ELECTRONICS TECH CO LTD
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Problems solved by technology
[0002] In the field of security, most cameras have integrated enhancement algorithms such as adjustable brightness and contrast. However, these functions need to be adjusted manually, which cannot meet the complex and changeable actual application environment.
Especially in the case of many cameras, manually adjusting each camera is time-consuming and laborious
Method used
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[0033] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.
[0034] Such as figure 1 As shown, an intelligent enhancement method based on historical frame image average statistics includes the following steps:
[0035] S1: Capture each frame of image in the input video stream;
[0036] S2: Calculate the average value of each frame of image;
[0037] The average value of each frame of image is calculated on the current frame. When the first frame of the video stream is captured, the average value of the first frame of image is calculated and the flag is initialized. The initialization method is as follows:
[0038] (1) When the average value of the first frame of image is less than the first threshold X1, then flag=0;
[0039] (2) When the average value of the first frame of image is greater than the second threshold X2, t...
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The invention discloses an intelligent enhancement method based on the statistics of the average value of historical frame images, which includes: capturing each frame of image in the input video stream; calculating the average value of each frame of image; when the flag flag of the previous frame is 0, statistics Whether the average value of the consecutive N frames of images is less than the first threshold Whether they are all greater than the second threshold X2, if the requirements are met, the enhancement process will be exited and the results will be output directly, otherwise the enhancement process will continue. After actual testing, the present invention can adaptively turn on the enhancement function through the algorithm in low-light environments such as at night, and automatically turn off the enhancement function when the light is strong, so that many low-light enhancement algorithms can automatically turn on and off through this intelligent mode. closure.
Description
Technical field [0001] The present invention relates to a video enhancement algorithm, in particular to an intelligent enhancement method based on historical frame image average statistics. Background technique [0002] In the security field, most cameras have integrated enhancement algorithms such as adjustable brightness and contrast. However, these functions need to be adjusted manually, which cannot meet the complex and changeable actual application environment. Especially when there are many cameras, the manual adjustment of each camera is time-consuming and laborious. Summary of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide an intelligent enhancement method that collects statistics on the average value of historical frames of video and analyzes whether the next frame needs to be enhanced. [0004] The purpose of the present invention is achieved through the following technical solutions: an intelligen...
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IPC IPC(8): G06T5/00
CPCG06T2207/10016G06T2207/10024G06T5/00
Inventor 刘军
Owner CHENGDU GUOYI ELECTRONICS TECH CO LTD