Cartoon-type animation generation method for human face video image

Abstract

The invention discloses a cartoon-type animation generation method for a human face video image. The cartoon-type animation generation method comprises the following steps of: reading a human face video to be processed and extracting a key frame of the human face video to obtain a formula described in the specification; reading a key frame image and carrying out illustration processing to obtain an illustration image; reading the illustration image and carrying out human face feature positioning to obtain a face feature point set, and calculating the ratio of each portion of the human face according to face feature points, and carrying out feature discovery on the human face; carrying out overall deformation on the illustration image to obtain an image fti(x,y); carrying out partial exaggeration on the image fti(x,y) to obtain a final cartoon image; processing S frame by frame to obtain a key frame sequence image with a cartoon effect; reading a key frame sequence D, and carrying out middle frame generation between every two key frames by a cross decomposition method to obtain the human face video image. According to the cartoon-type animation generation method disclosed by the invention, the generated cartoon has a comedy and does not lose the original romantic charm by adopting a global-partial combination method, thus the problems of inconsistent styles and face position disproportionality of the existing cartoon are solved, and the generated illustration image is more natural and rich in artistic perception.

Description

technical field [0001] The invention belongs to the technical field of digital image processing, and relates to a method for generating comic animation of human face video images. Background technique [0002] At present, the face caricature generation technology only performs simple caricature synthesis of human faces, but compared with the artist's hand-painted effect, it is not mature for the exaggeration and synthesis of specific styles of faces. Although many methods have been proposed, they are all unsatisfactory. Most of them cannot be applied to actual needs to form distinctive face caricature animations. [0003] The key technologies of face caricature drawing can be summarized as: automatic generation of portraits and deformation and exaggeration of portraits. Automatic portrait generation can be roughly divided into two categories: image-based face portrait drawing and face detection-based face portrait drawing. Deficient, has certain limitations, so it can't vi...

AI Technical Summary

Problems solved by technology

The method based on human-computer interaction is difficult to operate for ordinary users who are inexperienced

The method based on the sample template can only represent the average level, and cannot exaggerate the facial features

The method based on drawing rules and the method based on statistical learning are labor-intensive and time-consuming

These methods can generate face images with caricature effects to a certain extent, but they do not take into account the overall proportional relationship of the face, making the exaggeration lose its original charm, lack of artistic sense, and it is difficult to obtain satisfactory processing results

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