Figure five sense organ deformation method based on image local precise deformation

Abstract

The invention discloses a figure five sense organ deformation method based on image local precise deformation. According to the method, various five sense organ types and five sense organ deformation templates are preset, deformation control points can be automatically generated, target positions of the control points are calculated, and various common deformation effects are achieved. In the deformation process of a facial image, an existing affine transformation deformation function based on an MLS is improved, and a localization processing technique capable of achieving precise image deformation is put forward; on the basis that deformation is controlled through the control points, attenuation calculation is carried out on an MLS deformation mapping result by means of setting of a control area, and on the premise that local smooth deformation is guaranteed, aliasing of image boundaries is prohibited. According to the method, figure five sense organ precision deformation can be achieved, the deformation result is smooth and highly vivid, an operation process is intelligent, complexity of use operations is reduced, and the method can be widely used for advertisement, animation and other fields.

Description

technical field [0001] The invention relates to the technical field of computer graphics and image processing, and is a point-based local accurate deformation method. Background technique [0002] Character facial features deformation is a very important application in the field of image deformation, and it is widely used in advertising, film, animation and other fields. During the deformation process of the character's facial features, the operator adds points, lines and other control handles, and modifies the position and direction of the handles, so that the character's facial features can be deformed in an intuitive way. [0003] The facial features deformation method of characters is mainly based on image deformation. In the past, the work on image deformation mainly focused on the research of different control methods. At present, the main methods are: grid-based, domain-based and point-based image deformation techniques. [0004] Sederberg and Parry (literature refer...

AI Technical Summary

Problems solved by technology

However, this method is not strictly local deformation. The outline of the original image will be deformed to a certain extent with the modification of the control handle, and it will even disappear beyond the boundary of the image.

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