The preprocessing in an automatic fingerprint identification system usually includes five steps: normalization, directional graph computation, image segmentation, filtering and binarization.
指纹预处理一般包括规格化、方向图计算、图像分割、滤波、二值化等环节，该文系统地讨论了各环节的有效算法。
In preprocessing of fingerprint image, four sides are discussed, including outline segmentation, filtering enhancement, segmentation binarization and thinning.
指纹图像预处理的研究包含四个方面：图像分割、图像增强、二值化和细化。
Secondly, the color segmentation of image using multi-channel and the binarization of image is implemented and the traffic signs which may be adhered are divided.
其次，对图像进行多通道融合的颜色分割并对分割后的图像进行二值化处理，并分割可能粘连的交通标志。
Binarization image segmentation techniques are widely applied because their realization is easy and fast. In this paper, a binarization image segmentation method is proposed based on region feature.
二值化图像侵害方法因方法简单、易于实现而得到广泛应用，文章提出了一种基于区域特征的二值化图像分割方法。
The new methods of the early technique of LP recognition, including LP location, LP image contrast estimation, binarization, and characters segmentation are studied and proposed.
讨论了数字图像处理在车牌识别中所使用的各种技术，对于车牌边缘检测和车牌字符分割等关键处理技术进行了较为详细的论述。
The new methods of the early technique of LP recognition, including LP location, LP image contrast estimation, binarization, and characters segmentation are studied and proposed.
讨论了数字图像处理在车牌识别中所使用的各种技术，对于车牌边缘检测和车牌字符分割等关键处理技术进行了较为详细的论述。
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