整个过程基本是对灰度图像和二值模板的形态处理，简单易行。
The whole process is the morphology processing based on the gray-level image and binary mask, and is simple and easy to implement.
第二个模板将所有属性复制到输出中，但省略了属性值。
The second template copies all attributes to the output, except that it ignores the attribute value.
对虹膜区域进行二值化编码，获得虹膜特征模板。
Two-value iris template will be achieved by compare every point of convolve image with zero.
先得到指纹图像的连续方向图，再根据此方向图设计方向滤波模板进行滤波，最后得到指纹的二值化图像。
Firstly gain the continuously directional image of the fingerprint, secondly design orientation template using the directional image and filter the fingerprint image, lastly obtain the binary image.
对于印刷体的字符来说，经常采用二值化和模板匹配方法进行识别。
We usually use binarization and template matching method for the printed character.
接下来使用细化模板对二值化图像进行细化，并针对细化图中各种噪声的拓扑结构将它们一一滤除。
After thinning, we get rid of the noises from the acquired skeleton image according to their configuration.
接下来使用细化模板对二值化图像进行细化，并针对细化图中各种噪声的拓扑结构将它们一一滤除。
After thinning, we get rid of the noises from the acquired skeleton image according to their configuration.
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