Image noise reduction method and device, terminal and storage medium

An image noise reduction and image technology, applied in the field of image processing, can solve problems such as ghosting and motion blur, and achieve the effect of avoiding pixel discontinuity, ghosting suppression, and not affecting image quality

Active Publication Date: 2021-09-03
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Claims
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However, when there are moving objects in the shot, gh

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

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[0034]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.

[0035] The improvement of hardware technology and the update of software algorithm make the effect of mobile phone photography more and more surprising. However, in dark scenes, the signal-to-noise ratio of a single image is unsatisfactory; in high-dynamic scenes, it is difficult for a single image to achieve a high signal-to-noise ratio in dark pl...

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Abstract

The embodiment of the invention provides an image noise reduction method and device, a terminal and a storage medium, and the method comprises the steps: obtaining a first image group, wherein the first image group comprises a reference image and a plurality of frames of alignment images aligned with the reference image, each alignment image comprises a plurality of target points, the plurality of target points of each aligned image are in one-to-one correspondence with the plurality of feature points in the reference image; rejecting the first ghosting image according to local difference information between the alignment image and the reference image; removing the second ghosting image according to the overall difference information between the alignment image and the reference image; and fusing the aligned image without the first ghosting and the second ghosting with the reference image, and outputting a final image. By using the advantages of the multi-frame image, the noise reduction and dynamic range improvement are realized, the rapid operation can be realized, the real-time purpose is achieved, the motion scene can be properly processed, the ghosting is well inhibited, and the image quality is not influenced.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image noise reduction method, device, terminal, and storage medium. Background technique [0002] With the improvement of hardware technology and the update of software algorithms, in order to obtain better visual effects, the application of multi-frame computational photography technology in mobile phone cameras is becoming more and more common. When the subject is a still scene, the registration between pixels from different images is usually more accurate and can generally achieve good results. However, when there are moving objects in the shot, ghosting and motion blur also need to be well controlled. Contents of the invention [0003] Embodiments of the present invention provide an image noise reduction method, device, terminal, and storage medium. Through the image noise reduction method, the advantages of multi-frame images can be used to achieve noi...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T5/50
CPCG06T5/002G06T5/007G06T5/50G06T2207/20221
Inventor 张晓盟张鑫蒋彬
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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