Method and device for video enhancement
A video enhancement and video acquisition technology, applied in the field of image processing, can solve problems such as single means, unsatisfactory enhancement effect, and inflexible processing, so as to achieve the effect of improving video quality and enhancing video enhancement effect
Active Publication Date: 2017-09-22
SHENZHEN TENCENT COMP SYST CO LTD
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[0005] However, the above-mentioned various image enhancement technologies all have a common feature, that is, the same enhancement operation is performed on each frame in the video, and the image enhancement algorithm adopted is applicable to all frames in the video, and the method is relatively single and the processing is not flexible enough. , the enhanced effect cannot meet the frames of various scenes, especially when the content of each frame in the video changes greatly, which will lead to a decrease in video quality
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[0042] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0043] see figure 1 , an embodiment of the present invention provides a method for video enhancement, including:
[0044] 101: Obtain each frame in the video in sequence.
[0045] In this embodiment, sequentially acquiring each frame in the video refers to acquiring each frame in the video sequence according to the order in which the frames are arranged. see figure 2 , is a schematic diagram of a video frame sequence provided by another embodiment of the present invention. Wherein, a video includes several frames: frame 1, frame 2... frame i-1, frame i, frame i+1... frame n-1, frame n and so on.
[0046] 102: For each current frame, determine the attribute information reflecting the motion state or brightness, search the preset ma...
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The invention discloses a video enhancement method and device, belonging to the field of image processing. The method includes: sequentially acquiring each frame in the video; for each current frame, determining attribute information reflecting motion state or light and shade, searching for a preset mapping relationship to obtain control parameters corresponding to the attribute information, using the control parameter to perform a video enhancement operation on the current frame. The device includes: an acquisition module and an enhancement module. The present invention solves the problem of inflexible processing due to the same enhancement for each frame in the video, can perform different enhancements for each frame in the video, realizes frame-based video enhancement, effectively improves the video enhancement effect, and improves video quality.
Description
technical field [0001] The invention relates to the field of image processing, in particular to a video enhancement method and device. Background technique [0002] In the process of video transmission and storage, if it is damaged to some extent and various noise pollution, it will cause the video to lose its essence or deviate from people's needs. Therefore, preprocessing the video has become an indispensable means to eliminate adverse effects. [0003] Video preprocessing technology refers to a series of operations before formal processing of video, including image enhancement and image restoration, etc. Among them, image enhancement is to add some information or transform data to the original image by certain means, selectively highlight the features of interest in the image or suppress some unnecessary features in the image, so that the image matches the visual response characteristics, thereby improving the image quality. Image quality, enhanced visual effects. [0...
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IPC IPC(8): H04N19/33H04N19/142
CPCH04N19/124H04N19/137H04N19/172H04N19/142H04N19/186
Inventor 李凯王浦林姬晓翠
Owner SHENZHEN TENCENT COMP SYST CO LTD