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Image noise reduction method, device, storage medium and terminal

An image noise reduction and noise reduction technology, which is applied in the field of storage media, terminals, devices, and image noise reduction methods, can solve problems such as uneven distribution of noise points and unsatisfactory noise reduction effects, and achieve uniform noise distribution.

Active Publication Date: 2020-06-30
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the actual distribution of noise points in the face image is not consistent, the overall noise reduction scheme will lead to uneven distribution of noise points in different areas, and the noise reduction effect is not ideal

Method used

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  • Image noise reduction method, device, storage medium and terminal
  • Image noise reduction method, device, storage medium and terminal
  • Image noise reduction method, device, storage medium and terminal

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Embodiment Construction

[0023] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only some structures related to the present application are shown in the drawings but not all structures.

[0024] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the steps as sequential processing, many of the steps may be performed in parallel, concurrently, or simultaneously. Additionally, the order of steps may be rearranged. The process may be terminated when its operations are complete, but may also have additional steps not included in the figure. The ...

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Abstract

The embodiment of the present application discloses an image noise reduction method, device, storage medium and terminal. The method includes determining brightness information of a skin-colored region in a target image; determining a target sub-region in the skin-colored region whose brightness is lower than a preset brightness threshold, and determining a target noise reduction strength according to the brightness of the target sub-region and the brightness information; Perform noise reduction processing on the target sub-region based on the target noise reduction strength to obtain a target image after noise reduction processing. By adopting the above technical solution, the target sub-region to be subjected to noise reduction processing is determined based on the brightness, the noise reduction intensity is determined according to the brightness of each pixel in the target sub-region and the brightness information of the skin color area, and the corresponding pixel is determined based on the noise reduction intensity. Noise reduction processing is performed on the points to realize the effect of local noise reduction on the skin color area based on the brightness, so that the noise distribution in the skin color area is more uniform.

Description

technical field [0001] The embodiments of the present application relate to the technical field of terminals, and in particular, to an image noise reduction method, device, storage medium, and terminal. Background technique [0002] With the rapid development of terminal technology, electronic devices such as mobile phones and tablet computers have image acquisition functions, and users have higher and higher requirements for the quality of images collected by terminals. [0003] In actual use, users usually use mobile phones to take pictures. However, under different environments, the noise of captured face images varies greatly. For example, under backlighting, sidelighting, or point light sources, there are more noises in the shadow of the neck and the nose of the captured face image, which will affect the final rendering of the photo. The noise reduction solution in the related art regards the human face as a whole, and performs overall noise reduction processing on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/232H04N5/235G06T5/00
CPCG06T5/002H04N23/80H04N23/71
Inventor 张弓
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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