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A Method for Automatically Removing Dark Circles in Images

A technology for dark circles and images, applied in image enhancement, image data processing, instruments, etc., can solve the problems of high hardware requirements, difficulty in popularization, and long time consumption, and achieve the goal of low difficulty and threshold, low hardware cost, and saving operation steps Effect

Active Publication Date: 2017-09-19
MEITU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the shortcomings of the existing digital image processing methods, such as long time-consuming, high threshold, high hardware requirements, and difficulty in popularizing in portable terminals, the present invention proposes a digital image processing method, which aims to provide an automatic Digital image dark circles processing means to achieve convenient, fast, low threshold, and low-cost effects

Method used

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  • A Method for Automatically Removing Dark Circles in Images
  • A Method for Automatically Removing Dark Circles in Images
  • A Method for Automatically Removing Dark Circles in Images

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Embodiment Construction

[0047] 1) Receive a digital image A;

[0048] 2) Obtain the specific positions of the face and eyes according to the methods of face detection and eye detection.

[0049] Face recognition is performed first, and a variety of existing methods can be used, such as the literature "P.Viola and M. Jones. Rapid Object Detection using a Boosted Cascade of Simple Features, in: Computer Vision and Pattern RecognitiOn, 2001.CVPR 2001.Proceedings of the2001 IEEE Computer Society Conference on ". Obtain the approximate area location of the face according to the positioning.

[0050] For eye detection, various known techniques can also be used. For example, the method mentioned in the literature An Algorithm for real timeeye detection in face images (T. D'Orazio, M. Leo, G. Cicirelli, A. Distante). According to the eye detection, the specific positions of the left and right eyes are obtained.

[0051]The starting point of the area of ​​the human face in this embodiment is (41, 29), the...

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Abstract

The invention belongs to the field of digital image processing, and discloses a method for automatically removing dark circles in an image, which is characterized in that the contour areas of the left eye bag and the right eye bag are drawn first, and recorded as the eye bag contour map; then the human face area map is obtained; and The brightness of each pixel in the face area is obtained, and the result is recorded as image B; then image B is successively subjected to mean filtering, high contrast preservation, and brightening algorithm to obtain image C; image B is successively subjected to mean filtering, histogram statistics, and then Calculate the image D with the eye bag contour map and image C, and perform Gaussian blur on the image D; then perform Gaussian blur on the face area to obtain the face Gaussian map; finally calculate the image D, the face area, and the face Gaussian map, Get the result graph. This program realizes the function of automatically removing dark circles, minimizes the difficulty and threshold of user operation, and can be popularized in various portable digital devices, eliminating the need for human-computer interaction devices such as mice and keyboards, and the hardware cost is low; it is convenient and fast specialty.

Description

technical field [0001] The invention relates to a digital image processing method. Background technique [0002] The widespread use of portable digital devices has made photography an operational skill with a lower threshold, so that people can record their own activities at any time for home, business and other fields. Portrait shooting is one of the usual technical means. This kind of portraits captured by digital equipment has better editing capabilities. For aesthetic considerations, dark circles in portraits often require technical processing, but usually digital images can be used for such delicate processing methods Processing software for editing, but its technical requirements are very high, and the operation steps are numerous, time-consuming, and even professional human-computer interaction tools such as mouse, stylus, etc. are required. Therefore, this method is difficult to popularize on popular portable digital devices , causing many users to be at a loss for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
Inventor 张伟傅松林李志阳张长定
Owner MEITU
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