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Hair drawing method

A hair and path drawing technology, applied in the field of image processing, can solve the problems of long modeling time, complex algorithm, not suitable for mobile terminals, etc., and achieve the effect of simple fitting method, efficient calculation, and improved operation speed

Active Publication Date: 2018-10-09
CHENDU PINGUO TECH
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Problems solved by technology

In the prior art, there are also algorithms with better hair rendering effects, for example, "Single-View Hair Modeling for Portrait Manipulation", M Chai, L Wang, Y Weng, Y Yu, B Guo, "Acm Transactions on Graphics", 2012, 31 (4): 1-8, but the algorithm provided by this article is complex, the modeling time is long, and the processing time is calculated in minutes, so it is not suitable for use on mobile terminals (such as mobile APPs)

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] Step 101, performing hair region segmentation on the original image to obtain a hair region probability map; the hair region probability map is a single-channel grayscale image;

[0021] In this embodiment, the original image is an RGB image I rgb , and set the width of the RGB image as width and the height as height. The hair area is segmented on the RGB image by the method of image segmentation, and the hair area probability map HairMask is obtained, and the HairMask is a single-channel grayscale image. Image segmentation is already a relatively mature technology, and the present invention uses a deep learning method to perform hair region segmentation on the above-mentioned original image. The segmentation algorithm based on deep learning can refer to ...

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Abstract

The invention discloses a hair drawing method. The hair drawing method comprises steps that hair region segmentation of an original image is carried out to obtain a hair region probability map; the hair region probability map is a single channel grayscale image; the hair orientation is extracted from the original image; according to the hair orientation, hair paths are extracted from the hair region probability map; the hairs are drawn according to the hair paths. The method is advantaged in that fine hair drawing on a mobile terminal can be automatically and quickly carried out, and user demands are satisfied.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a hair drawing method. Background technique [0002] In recent years, photography applications on mobile phones have emerged in an endless stream. These applications have functions such as beauty and make-up, which greatly enrich people's life fun and are deeply loved by users. Among the above-mentioned applications, there is an APP specially designed for portrait hair treatment to achieve further beauty and makeup effects. However, the existing methods for portrait hair processing are relatively simple, either directly replacing the original hair with new hair materials, or simply changing the color of the original hair. Unsatisfactory, can not meet the needs of users. [0003] The solution to the above problems is to finely draw the hair of the original portrait as required. In the prior art, there are also algorithms with better hair rendering effects, for example,...

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Application Information

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IPC IPC(8): G06T7/11G06T11/20
CPCG06T7/11G06T11/20G06T2207/20016
Inventor 黄亮徐滢
Owner CHENDU PINGUO TECH
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