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Image dark corner compensation method and device and terminal equipment

A compensation method and vignetting technology, which is applied in the field of image processing, can solve the problem of low image quality and achieve the effect of improving quality and eliminating vignetting

Active Publication Date: 2016-11-23
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology

[0003] Therefore, when a terminal device with a shooting function takes a picture, the light is concentrated on the central area of ​​the image sensor through the lens, so that the image presented by the image sensor is bright in the central area, while the four corners of the image are very dark, and the low quality

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  • Image dark corner compensation method and device and terminal equipment
  • Image dark corner compensation method and device and terminal equipment
  • Image dark corner compensation method and device and terminal equipment

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Embodiment Construction

[0077] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0078] The image vignetting compensation method, device and terminal device according to the embodiments of the present invention are described below with reference to the accompanying drawings.

[0079] figure 1 is a flowchart of an image vignetting compensation method according to an embodiment of the present invention.

[0080] Such as figure 1 As shown, the image vignetting compensation method may include:

[0081] S110. Detect whether the four corners of the original image captured by the terminal device at the initial po...

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Abstract

The invention discloses an image dark corner compensation method and device and terminal equipment. The method includes: detecting whether pixel brightness not meeting preset conditions exists in four corners of an original image photographed by the terminal equipment at an initial position or not; if the circumstance that pixel brightness not meeting the preset conditions exists at least one corner is detected, triggering a micro electro mechanical system according to a preset control strategy and moving distance to move an image sensor to one or multiple reference positions to photograph corresponding images; compensating pixel brightness not meeting the preset conditions in the original image according to reference images. By the method, the corners having low pixel brightness in the original image are compensated, dark corners in images are eliminated, and quality of the images is improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image vignetting compensation method, device and terminal equipment. Background technique [0002] With the development of photography technology, digital cameras, smartphones and other terminal devices with shooting functions have a variety of lens structures, and no matter what the structure of the lens combination is, the lens can be simply regarded as a convex lens. [0003] Therefore, when a terminal device with a shooting function takes a picture, the light is concentrated on the central area of ​​the image sensor through the lens, so that the image presented by the image sensor is bright in the central area, while the four corners of the image are very dark, and the The quality is not high. Contents of the invention [0004] The object of the present invention is to solve one of the above-mentioned technical problems at least to a certain extent. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/235H04N5/359
CPCH04N23/71H04N25/62H04N23/70
Inventor 杨新勤
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD