Method and system for realizing video image processing by noise analysis
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A technology for video image and noise analysis, applied in image data processing, image enhancement, image analysis, etc., to facilitate analysis and processing, and achieve the effect of clear display
Pending Publication Date: 2021-04-13
苏州启阳半导体科技有限公司
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[0004] However, in the video image processing process of the prior art, the noise analysis finds that the noise will increase with the increase of the brightness. Therefore, the prior art still has defects and needs to be improved and developed.
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[0025] Preferred embodiments of the present invention are described in detail below.
[0026] The invention discloses a method and system for implementing noise analysis for video image processing, such as figure 1 with figure 2 As shown, its method includes the following steps:
[0027] A. When sampling data, the pixels of the odd scanning lines are repeatedly taken as R and G, and the pixels of the even scanning lines are repeatedly taken as G and B;
[0028] B. Convert the captured video to YUV 4:2:0 format;
[0029] C. Use the histogram equalization algorithm to perform single-frame enhancement processing on the captured video.
[0030] The video sequence taken by the device of the present invention, such as a camera, can be output in RayerRG12 format, with 12 bits for each sampling value and a resolution of 1280×720, i.e. the sum of RGB sampling points, sampling at a frame rate of 25 fps. In the implementation method for noise analysis of the present invention for vi...
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Abstract
The invention discloses a method and system for realizing video image processing through noise analysis, and the method comprises the following steps: sequentially and repeatedly taking pixels of odd scanning lines as R and G, and sequentially and repeatedly taking the pixels of even scanning lines as G and B during data sampling; converting the shot video into a YUV 4: 2: 0 format; and carrying out single-frame enhancement processing on the shot video by adopting a histogram equalization algorithm. According to the method and system for realizing video image processing through noise analysis, due to the fact that the histogram equalization algorithm is adopted for conducting single-frame enhancement processing on the shot video, analysis and processing of dazzle light and other noise of the shot video are facilitated, and clear display of images is achieved.
Description
technical field [0001] The invention relates to a software implementation method and system for video image processing, in particular to a software implementation method and system improvement for video image processing using noise analysis. Background technique [0002] In the video sequence shot by the camera in the prior art, the output format generally adopts the BayerRG12 format. The processing principle of the Bayer format image is based on the characteristics of large-area coloring with low response bandwidth of the human eye to color. It is not necessary for each pixel to output three kinds of images at the same time. color. Therefore, during data sampling, the 1st, 2nd, 3rd, 4th, ... pixels of odd scanning lines sample and output R, G, R, G, ... data respectively, while the 1st, 2nd, 3rd, 4th, ...the pixels sample and output G, B, G, B, ... data respectively. Such as figure 1 As shown, each sampling value is 12 bits, the resolution is 1280X720 (the sum of RGB sam...
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