数字图像离散线性变换的基于边过程的方法

本文提出了一个对数字图像进行离散线性变换的基于边过程的方法，这个方法是先做基于边过程的围线追踪；再对由边过程组成的围线进行变换，这时变换能高效率地实现；最后对变换所得区域进行填充。这一方法能适用于任意的线性变换，能使变换结果更为真实和准确，能简洁快速地实现。视围线围出区域为区域域，在此意义下，本文方法可以看做是点辖方法的一种推广。

A CRACK BASED APPROACH FOR DISCRETE LINEAR TRANSFORMATION OF DIGITAL IMAGE

A new approach for discrete linear transformation of digital images is presented. In the approach, the crack based contour tracing is executed; the contours which are composed of cracks are transformed, the transformation is implemented efficiently; and the areas obtained by the transformation are filled. The approach can handle all kinds of linear transformations, and the obtained results are more consistent and accurate. The area surrounded by the contours can be treated as an area-governed region, and the suggested approach can be regarded as a generalization of the point-governed region method.