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Method, device, terminal, and computer-readable storage medium for removing moiré patterns

A technology of moiré and computer programs, which is applied in the field of image processing, can solve problems affecting image quality, etc., and achieve the effect of improving image quality and reducing visual contrast

Active Publication Date: 2021-03-02
OPPO CHONGQING INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Embodiments of the present application provide a method, device, terminal, and computer-readable storage medium for removing moiré, which can solve the technical problem that moiré in images affects image quality

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  • Method, device, terminal, and computer-readable storage medium for removing moiré patterns
  • Method, device, terminal, and computer-readable storage medium for removing moiré patterns
  • Method, device, terminal, and computer-readable storage medium for removing moiré patterns

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Embodiment Construction

[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the present 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, and are not intended to limit the present application. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0026] Moiré is a manifestation of the beat principle. Mathematically speaking, two equal-amplitude sine waves with similar frequencies are superimposed, and the amplitude of the composite signal will vary according to the difference between the two frequencies. Likewise, the beating principle also applies to spatial frequencies. The superposition of fringes wi...

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Abstract

The present application belongs to the field of image processing technology, and in particular relates to a method, device, terminal and computer-readable storage medium for removing moiré patterns. The method includes: obtaining an image to be processed; and determining whether moiré patterns exist in the image to be processed. ; If the image to be processed has moiré patterns, the image to be processed is upsampled to obtain an upsampled image with moiré patterns removed; in this application, when the image to be processed has moiré patterns, the image to be processed is upsampled. Sampling makes the signal around the moiré pattern closer to the moiré pattern, reducing the visual contrast caused by the moiré pattern in the image to be processed, thereby obtaining an upsampled image with the moiré pattern removed, and solving the problem of the moiré pattern existing in the image that affects the image quality. problem, improving image quality.

Description

technical field [0001] The present application belongs to the technical field of image processing, and in particular relates to a method, device, terminal and computer-readable storage medium for removing moiré patterns. Background technique [0002] Moiré is a kind of high-frequency interference fringes that appear on the photosensitive element of digital cameras or scanners. When the user takes a picture of the display screen, the captured image may appear colored high-frequency irregular fringes, namely Moiré, causing image quality to suffer. Contents of the invention [0003] Embodiments of the present application provide a method, device, terminal, and computer-readable storage medium for removing moiré, which can solve the technical problem that moiré existing in an image affects image quality. [0004] The first aspect of the embodiment of the present application provides a method for removing moiré, including: [0005] Get the image to be processed; [0006] jud...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T3/40
CPCG06T3/4007G06T5/90G06T5/70
Inventor 张弓
Owner OPPO CHONGQING INTELLIGENT TECH CO LTD
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