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Image vignetting brightness regulating method and device

A brightness adjustment and brightness adjustment technology, applied in the field of image processing, can solve the problems of high cost, difficulty in retrofitting camera equipment, low cost and general applicability, etc.

Active Publication Date: 2013-01-30
INLIFE HANDNET CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the cost of this method is relatively high, the lens and other components need to be redesigned, and it is difficult to modify the existing camera equipment
[0004] Therefore, there is an urgent need for a solution with low implementation cost and high universality to overcome the shadow phenomenon at the corners in the existing camera process

Method used

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  • Image vignetting brightness regulating method and device
  • Image vignetting brightness regulating method and device
  • Image vignetting brightness regulating method and device

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Embodiment Construction

[0062] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] Such as figure 1 Shown is the flow chart of the brightness adjustment method of image vignetting of the present invention, in the present invention, the method for obtaining vignetting area is as follows:

[0064] S100) Acquiring a two-dimensional image, and dividing the two-dimensional image into a vignetting area; for the acquired two-dimensional image, converting it into a data format in which each pixel is represented by an RGB value;

[0065] For the division of vignetting areas in two-dimensional images, the following steps are required:

[0066] S110) Acquiring the width W and height H of the two-dimensional image;

[0067] S120) Construct the dark corner area of ​​the isosceles triangle, the right angle vertex of the isosceles triangle is the vertex of the two-dimensional image, the waist length direction of the isosceles tri...

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Abstract

The invention relates to an image vignetting brightness regulating method and an image vignetting brightness regulating device. The method comprises the following steps of: S100) acquiring a two-dimensional image, and dividing a vignetting area on the two-dimensional image; S200) regulating the brightness of the vignetting area; and S300) outputting an image of which the brightness is regulated. By the method and the device, in the process of shooting by utilizing an image shooting device, the brightness of the image vignetting can be automatically regulated, so that the brightness of a whole image is maintained consistently after regulation, and the comfort level of image watching is improved; and the method and the device are implemented by modifying the conventional majority photographic devices, and the universality is high.

Description

technical field [0001] The present invention relates to the field of image processing, and more specifically, to a method and device for adjusting brightness of dark corners of captured images. Background technique [0002] In an image capture device, such as a camera, video camera, etc., due to the imaging characteristics of the lens, the imaging effect on the four corners is darker than that in the central area, forming a dark shadow. The existence of these dark shadows will have a greater impact on visual comfort. [0003] One way to eliminate this kind of vignetting is to redesign the camera optical path to compensate for the lack of brightness at the corners. However, the cost of this method is high, and components such as lenses need to be redesigned, and it is also difficult to modify existing camera equipment. [0004] Therefore, there is an urgent need for a solution with low implementation cost and high universality, so as to overcome the shadow phenomenon at the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/243H04N23/76
Inventor 李炜刘道
Owner INLIFE HANDNET CO LTD
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