The method based on the multidirectional edge detection uses the position, gray, size, direction and relativity of texture, so the dividing features ensure to increase the precision much more.
基于多方向纹理边缘检测的特征提取方法利用了纹理的位置、灰度、大小、方向、相关性等多种结构特征，因此提取出来的可区分性特征使虹膜识别的准确性得到大幅度的提高。
An image interpolation algorithm based on image edge information can be elicited from dividing image into no-edge areas and edge areas.
通过将图像分为非边缘部分和边缘部分，得出了一种基于图像边缘信息的图像插值算法。
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