可调整的B样条插值在纺织数码印花中的应用

A Study on the Application of Adjustable B-Spline in Textile Digital Printing

针对传统的放大方法在高倍放大后图像边缘易出现不清晰的问题,提出引入张量参数的三次均匀B样条应用到此类图像高倍放大中来。通过方便地调整张量参数的取值来调整曲面形状,使其更加陡峭,使放大图像边缘更加锐利。试验结果表明,得到的纺织品数码印花图像高倍放大效果比利用传统三次均匀B样条方法更加锐利,可满足生产需要。

Issues of ill-defined margin appears after image high magnification, which is utilized in the traditional magnification methods. To this issue, cubic uniform B-Spline with tension parameter is proposed and applied in the high magnification of this type images in this paper. Shape of surface is adjusted through the adjustment of the value of tension parameter, which will makes it steep. Using this interpolation surface, the edge of resulting image is sharper. The results show that, the received textile digital printing images after high magnification are sharper than that of traditional cubic uniform B-Spline, which can further meet the demand of production.