Image quality improvement method and device
An image quality and image technology, applied in the field of image processing, can solve the problems of slow processor speed, large amount of calculation, complex algorithm, etc., to achieve the effect of increasing processing speed, reducing the amount of calculation, and improving image quality
Active Publication Date: 2020-11-24
SHENZHEN SENSETIME TECH CO LTD
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[0004] Embodiments of the present invention provide a method and device for improving image quality, which are used to solve the problems of large amount of calculation, complicated algorithm, and slow processor speed in existing image quality improving methods.
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[0076] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0077] The technical solutions provided by the present invention will be illustrated below in conjunction with specific embodiments.
[0078] In one aspect, embodiments of the present invention provide a method for improving image quality. figure 1 It is a schematic flowchart of the image quality improvement method provided by Embodiment 1 of the...
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Embodiments of the present invention provide an image quality improvement method and device. The method includes: obtaining a noise reduction histogram corresponding to the brightness component map of the original image; the noise reduction histogram indicates the brightness value distribution of edge pixels in the brightness component map; performing noise reduction on the brightness component map according to the noise reduction histogram to obtain the reduced noise histogram. Noise component map; obtain the correction coefficient of each pixel in the original image according to the noise reduction component map and brightness component map; perform noise reduction on the original image according to the correction coefficient of each pixel to obtain a denoised image. The image quality improvement method and device provided by the embodiments of the present invention require less calculation and fast processing speed.
Description
technical field [0001] The invention relates to image processing technology, in particular to an image quality improvement method and device. Background technique [0002] With the continuous innovation and rapid development of science and technology, video images, as an important source of information for human understanding and exploration, have spread across various disciplines and fields, such as traffic monitoring, medical assistance, night driving, film production, etc. However, during the shooting and transmission of video images, noise will inevitably be generated due to the influence of shooting environment and shooting equipment, which affects the quality of video images. In particular, when performing contrast enhancement and feature extraction on video images, the noise will also be amplified. Therefore, video image noise reduction is the basis for video image quality improvement, and video image noise reduction is increasingly becoming the focus of image process...
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IPC IPC(8): H04N5/21H04N1/60G06T5/00
CPCH04N1/60H04N5/21G06T2207/10024G06T5/70
Inventor 王露赵瑞
Owner SHENZHEN SENSETIME TECH CO LTD