通常，为了提高透明性，应将较大的水印能量添加到宿主图像的高频部分；
Usually, to enhance transparency, greater watermark energy should be added to the high frequency part of uncorrupted image;
一款图片批量编辑工具，可以批量对图像文件进行调整大小，旋转，添加水印，转换格式的操作。
A batch photo editing tools, batch can adjust the size of image files, rotate, add watermarks, format conversion operation.
TSR的水印图像软件，是一个供个人使用的，可以添加数字水印到您所有的图像，照片和图片的透明度你决定免费程序。
TSR watermark image software, is a free program for personal use that can add digital watermarks to all your images, photos and pictures with the transparency you decide.
而脆弱水印则主要用来对图像进行防篡改验证，它能够检测到所添加水印的微小变化。
Fragile watermarks are used for authentication purposes and are capable of detecting minute changes of the watermark's content.
它事先不需要往图像数据中添加任何签名或水印信息，仅仅依靠图像自身的特性进行认证。
It don't need to add any ideograph or watermark in the digital images, the authentication only depend on the characteristics of the images.
因此有必要对文档图像进行分割和分类，在文字区域和图像区域分别添加水印。
Thus, it's necessary to separate the document image and then embed watermarking in character area and image area.
因此有必要对文档图像进行分割和分类，在文字区域和图像区域分别添加水印。
Thus, it's necessary to separate the document image and then embed watermarking in character area and image area.
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