Image Deformation Method

Image warping technology developed based on the computer graphics and digital image processing,it finished the work through the distortion of geometry figure and the color interpolation,i.e.,image warping applies two-dimension geometry transformation on images to retain the alignment between their features,at the same time blends their colors. It mostly includes cross-dissolve method and feature-based methods, we often see a image transform into another fluently in science films.it is the simplest warping method,however,the feature-based method will bring more interesting visual effect,firstly select the corresponding features on the different images,then establish the mapping function based on these corresponding relative, at last though warping we can make one image take on another image's feature, e.g. we can make the eye on one face image look like that of the other face image.Image warping technology can be widely applied in: making of science film, three dimension reconstruction, criminal detection, effect forecast of surgery face plastic surgery,face detection and face image amalgamation,etc.The dissertation described the fundamental of image warping technology firstly, then recount the several typical methods of image warping ,and bring forward a new snake-based model image warping method,at last compare these methods through making use of image parameters and present the corresponding conclusion.