A face beautifying method capable of quickly preserving edges

An edge preservation and face beautification technology, applied in the field of image processing, can solve the problems of cumbersome processing process, achieve the effect of natural effect, good face defects, and reduce the loss of detailed information

Active Publication Date: 2019-05-03
XI'AN POLYTECHNIC UNIVERSITY
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] At present, various development tools for modifying human faces, such as Meitu Xiuxiu, Photoshop and other software, although they can better deal with skin blemishes, the processing process is cumbersome, and requires users to have some professional skills and aesthetic sense to operate, which brings great benefits to users. It is inconvenient, so we need to invent a standard face beautification system, using as few steps as possible to complete this function, so that users can realize face image beautification without professional skills

Method used

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  • A face beautifying method capable of quickly preserving edges
  • A face beautifying method capable of quickly preserving edges
  • A face beautifying method capable of quickly preserving edges

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Embodiment Construction

[0060] The technical solution of the present invention will be further described in detail below in conjunction with the description of the drawings and specific embodiments.

[0061] Such as figure 1 As shown, a kind of fast edge-preserving face beautification method of the present invention is implemented sequentially according to the following steps:

[0062] Step 1, use the local variance to smooth the skin color on the original face image G(x,y) to obtain a smoothed face image, specifically:

[0063] Step 1.1, calculate the integral image I(x,y) of the original face image G(x,y) through formula (1):

[0064]

[0065] In the integral image I(x, y), the value of any point (x, y) is the value of all pixels in the rectangular frame formed from the upper left corner of the original face image G(x, y) to the current point (x, y). and; in order to speed up the calculation, the formula (5) can be used to replace the formula (2) to calculate the integral graph I (x, y),

[0...

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Abstract

The invention discloses a face beautifying method capable of quickly preserving edges. The method comprises the following steps of: (1) smoothing the skin color on an original face image G (x, y) by using a local variance to obtain a smooth face image; (2) establishing an adaptive Gaussian skin color model, and extracting a skin color likelihood region on the original face image G (x, y) to obtaina likelihood skin color; and (3) carrying out smoothing processing on the obtained likelihood skin color to obtain a mask image, taking the obtained mask image as a weight, and fusing the original face image and the obtained smooth face image to obtain a final face beautification image with a reserved edge. According to the face beautifying method with the rapid edge reservation function, the image can be rapidly beautified, skin color edge information is reserved while facial flaws are removed, loss of non-skin-color area information is reduced, and the face beautifying method has a more natural and three-dimensional beautifying effect.

Description

technical field [0001] The invention belongs to the technical field of image processing, in particular to a fast edge-preserving human face beautification method. Background technique [0002] With the maturity of photographic technology, the resolution of digital cameras is getting higher and higher, and the photos can clearly show all the details of the face, even including some spots, wrinkles and other factors that affect the beauty of the face. With the continuous improvement of aesthetic concepts, people have higher and higher requirements for the quality and aesthetics of imaging, and hope to show white, smooth, more realistic, more attractive and aesthetic human face images. Therefore, the rapid beautification technology of face images has potential application and practical value in multimedia industries such as mobile terminal and advertising industry. [0003] At present, various development tools for modifying human faces, such as Meitu Xiuxiu, Photoshop and oth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 汤汶师乐万韬阮朱耀麟武桐
Owner XI'AN POLYTECHNIC UNIVERSITY
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