This paper presents an algorithm that can automatically detect and extract text in digital document images.
本文提出一种在数字文档图像中自动检测和提取文字的算法。
Considering digital watermarking algorithms for document images, there are not many, lower robustness.
目前针对文档图像的数字水印算法并不是很多，并且都有鲁棒性较低的缺点。
The form for any kind of digital media file, such as images, sound, video or general document and so on.
其形式可为任何一种数字媒体，如图像、声音、视频或一般的文档等等。
In view of the unique characteristics of document images, many algorithms for digital image watermarking can not be applicable for document images.
而且鉴于文档图像自身的特点，许多数字图像水印算法对文档图像并不适用。
In view of the unique characteristics of document images, many algorithms for digital image watermarking can not be applicable for document images.
而且鉴于文档图像自身的特点，许多数字图像水印算法对文档图像并不适用。
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