摘要
图像旋转算法采用的插值方法存在不足,容易出现"锯齿"形边缘和模糊的现象,改变了图像的表示模型,为此提出了平面插值和球面插值相结合的图像插值方法,从而避免了传统的插值方法用统一的模型逼近所有像素的不足,它对不同的情况采用不同的插值方法。理论分析和实验结果表明了该方法的有效性。
Rotation algorithm for image interpolation methods has some shortcoming. It often can make the image blur or have saw-tooth shaped edges phenomenon. This paper changed the model of expressing image. A image interpolation method combining plane interpolation and spherical interpolation was proposed. It avoids the traditional interpolation u- ses unified model to approximate all pixels. In different circumstances it will use different interpolation methods. Final- ly, the theoretical analysis and experimental results show the effectiveness of the method.
出处
《计算机科学》
CSCD
北大核心
2013年第5期303-306,共4页
Computer Science
基金
河南省科技厅科技攻关项目(112102210445)资助
关键词
图像插值
双线性插值
平面插值
球面插值
图像旋转
Image interpolation
Bilinear interpolation
Plane interpolation
Spherical interpolation
Image rotation
