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Automatic hair drawing method for human face cartoonlization

A hair and automatic technology, which is applied in the field of automatic hair drawing of human face cartoon, can solve the problems of unstable effect and low output efficiency, and achieve the effect of avoiding unstable effect and improving production efficiency.

Inactive Publication Date: 2013-07-24
苏州华漫信息服务有限公司
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Problems solved by technology

[0004] The problem solved by the technology of the present invention is: to overcome the defects of low output efficiency and unstable effect caused by the method of manually drawing the hair region in the existing face cartoon technology, and to provide a fully automatic and fast drawing of cartoon-effect hair method

Method used

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  • Automatic hair drawing method for human face cartoonlization
  • Automatic hair drawing method for human face cartoonlization
  • Automatic hair drawing method for human face cartoonlization

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Embodiment Construction

[0012] This automatic hair rendering method for face cartoonization includes the following steps: (1) hair region segmentation; (2) hair feature description; (3) hair template matching and rendering.

[0013] Preferably, step (1) will be based on figure 2 The shown face image uses the Otsu method (Ostu) to automatically calculate the segmentation threshold for image binarization. After binarizing the image, use the image connected domain analysis technology to extract the black connected domain with the largest area as the initial hair region segmentation result, as shown in image 3 shown. For the initial hair region segmentation result, the mathematical morphology closing operation (close) is used to fill the small holes in the region and soften the edge of the region. The structural element can be selected as a circle with a radius of 5, so as to obtain the final hair region segmentation result, as shown in Figure 4 shown.

[0014] Preferably, step (2) calculates Hu m...

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Abstract

The invention relates to a method for automatically extracting a hair area in a photo by using a full face photo of the human face and a computer and converting the hair area into a cartoon style drawing effect. The automatic hair drawing method can be used as a constituent part of a cartoonlization technology based on a human face image. The automatic hair drawing method comprises the following steps of: (1) segmenting the hair area; (2) describing hair characteristics; and (3) matching and drawing a hair template.

Description

technical field [0001] The invention belongs to the technical field of image processing and pattern recognition, and in particular relates to an automatic hair drawing method for cartooning human faces. Background technique [0002] The hair region is an important region of the human head and is one of the reasons for different appearances in different individuals. The extraction of the hair region is also the core module of the automatic generation of personalized face cartoon and anime avatars. By accurately extracting the hair area in the face image, further using the template matching method to select the appropriate cartoon hairstyle in the hairstyle template library, so that the final generated cartoon head portrait and the corresponding face image are balanced in terms of similarity and cartoon effect . [0003] At present, the automatic processing of hair in images by most computers is limited to the techniques of segmentation and extraction of hair, which are gene...

Claims

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Application Information

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IPC IPC(8): G06T11/00
Inventor 彭振云许奇明
Owner 苏州华漫信息服务有限公司
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