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Method and system for beautifying composition of image based on main body adjustment

A subject and image technology, applied in the field of image composition beautification method and system based on subject adjustment, can solve the problems that the beautification effect cannot be achieved, and the algorithm is time-consuming

Active Publication Date: 2014-01-29
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

The method depends on the cropped sub-image. If the appropriate sub-image is not cropped, the ideal beautification effect may not be achieved, and the algorithm is time-consuming

Method used

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  • Method and system for beautifying composition of image based on main body adjustment
  • Method and system for beautifying composition of image based on main body adjustment
  • Method and system for beautifying composition of image based on main body adjustment

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Embodiment

[0066] Such as figure 1 As shown, the image composition beautification method based on subject adjustment in this embodiment includes the following steps:

[0067] (1) Perform subject area detection on the image to obtain the subject detection map, such as figure 2 As shown, it specifically includes the following steps:

[0068] (1-1) Perform salient area detection on the image to obtain a salient map;

[0069] The present invention adopts a salient region detection algorithm based on the Lab color space to generate a salient map, which utilizes the color and brightness features of the image to calculate the salient features, specifically:

[0070] For an image I, let I u is the average value of all pixels in the image I, I w is the image after Gaussian blurring of image I, I u and I w Both are expressed in Lab color space, by calculating I w and I u The Euclidean distance to calculate the saliency, the saliency map S is obtained by formula 1;

[0071] S(x,y)=||I u ...

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Abstract

The invention discloses a method for beautifying composition of an image based on main body adjustment. The method for beautifying the composition of the image based on main body adjustment comprises the following steps that firstly, main body area detection is conducted on the image, so that a main body detection image is obtained; secondly, morphologic processing and binarization are conducted on the main body detection image, so that a main body mask binary image is obtained; thirdly, a main body is removed from the image through the main body mask binary image, zooming is conducted on the main body according to the optimal main body ratio rule, and the size of the main body is adjusted; fourthly, a blank area, generated after the main body is removed, of the image is filled in through the image restoration algorithm based on a sample, so that a background image is obtained; fifthly, according to the rule of thirds in the image composition aesthetics, the zoomed main body is moved to the background image, so that the beautified image is obtained. The invention further discloses a system for beautifying the composition of the image based on main body adjustment. The method and system for beautifying the composition of the image based on main body adjustment achieve automatic beautification of the composition of the image and have the advantages of being high in operating speed, strong in feasibility and good in automatic beautification effect.

Description

technical field [0001] The invention relates to the field of image intelligent processing, in particular to an image composition and beautification method and system based on subject adjustment. Background technique [0002] Today, when the Internet is very popular, people are exposed to a large amount of image information from computers and mobile terminals every day. People especially favor images with aesthetic feeling, because it brings people pleasant visual experience and strong visual impact, and arouses the emotional communication of viewers. In this case, there is a huge demand for processing and beautifying image information with the help of computers and mobile terminals to meet people's visual psychology. Studies have shown that composition is an important indicator of image aesthetics. Composition refers to rationally arranging and processing the relationship and position of people, scenery and objects in a certain space to obtain the best layout of the image,...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T3/40
Inventor 王伟凝姜怡孜韦岗蔡东
Owner SOUTH CHINA UNIV OF TECH
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