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Image brightness adjustment method and device

An image brightness and adjustment method technology, which is applied in the field of image processing, can solve problems such as individual brightness adjustment, poor image brightness adjustment effect, and poor user visual experience, so as to improve image quality, increase adjustment speed, and highly self-adaptive and flexible The effect of tuning performance

Active Publication Date: 2021-10-15
SZ REACH TECH
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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides an image brightness adjustment method and device, aiming at solving the problem that the image digital processing method in the traditional technical solution cannot individually adjust the brightness of a certain sub-region in the image, and the brightness of the image The adjustment effect is poor, and the user's visual experience is not good.

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  • Image brightness adjustment method and device
  • Image brightness adjustment method and device
  • Image brightness adjustment method and device

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Embodiment approach

[0143] The image brightness adjustment method in the present invention can individually adjust the brightness of the moving area in the video image, so that the brightness of the specific area in the video image changes correspondingly according to the actual needs of the user, and the multi-frame video image can present better quality. Therefore, the image brightness adjustment method can be applied to various technical fields, and the image brightness adjustment method is applied to teaching video images below. In order to illustrate the embodiments of the image brightness adjustment method of the present invention, the details are as follows:

[0144] By acquiring a teaching video image within a preset continuous time; the teaching video image includes corresponding video information, and the video information includes the lecture content of the teacher in the video recording, and by completely acquiring the teacher's class video, to save the teacher The teaching content du...

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Abstract

An image brightness adjustment method and device, the image brightness adjustment method comprising: collecting a video image of a target area; then acquiring a motion area of ​​the video image; and then dividing the motion area into a plurality of rectangular areas to determine a plurality of sub-areas macroblock; the sub-macroblock is a rectangle with a preset pixel width and a preset pixel length; finally, brightness enhancement is performed on a plurality of sub-macroblocks according to the enhancement algorithm coefficients; since only the brightness of the motion area in the video image is The independent adjustment improves the display effect of the image, and improves the brightness adjustment efficiency of the moving area by dividing the moving area into sub-macroblocks.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method and device for adjusting image brightness. Background technique [0002] Image processing technology refers to the analysis of images through various pixel processing methods, so that the processed images can achieve preset effects, meet the different visual needs of users, and bring users a good visual experience. Image processing in traditional technology usually adopts digital image processing method. Digital image refers to the use of digital cameras, scanners and other electronic equipment to obtain image data. After in-depth processing and transformation of the image data, the display state of the original image is changed, such as changing the color of the image. The image can be customized according to the actual needs of users. Change its own parameters so that the changed image can be widely applied to various industrial technical fields, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T7/254
CPCG06T5/007G06T2207/10016G06T2207/20021G06T2207/20224G06T7/254
Inventor 刘纹高陈伟廖海
Owner SZ REACH TECH
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