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：数字水印将感觉不到的信号嵌入到声频、视频和图像中以实现不同的目的。例如: 添加标题和版权保护。首先介绍 了有关数字水印的基本原理、重要属性及其主体框架。然后,将数字水印按不同角度划分为不同种类。讨论了各种各样的数 字水印算法以及数字水印在不同领域的应用,并简要介绍了对数字水印的攻击。最后,给出了数字水印当前的研究现状和发 展形式及前景。(: Digital watermark embedding imperceptible signals to the audio, video and images to achieve different purposes. Example: Add a title and copyright protection. Firstly, the basic principle about digital watermarking, and the main framework of the important attributes. Then, the digital watermark according to different angles into different types. Discussed a wide range of digital watermarking algorithms and digital watermarking applications in different fields, and a brief introduction of the digital watermarking attacks. Finally, the digital watermark of the current situation and development in the form of research and prospects.)

主分量分析的源代码，附有简单的解释说明，主要对图像矩阵做降维处理，适用多幅图像的变化检测(Principal component analysis of the source code, a simple explanation, the main image matrix reducing dimension, suitable for image change detection)

ihs融合方法,比较好用，测试通过，大家可以试试~(ihs fusion methods, better quality, tested, we can try ~)

指纹图像处理，细化，锐化，二值化，特征点的提取。(Fingerprint image processing, refining, sharpening, binarization, feature point extraction.)

C#的图像处理，用于验证码的识别功能，可以识别简单的有背景干扰的验证码(C# image processing, is used to identify functional verification code, you can recognize simple background interference verification code)

dib图像的读取，显示以及存储，能够运行(dib image read, display, and storage, and be able to run)

guided_filter滤波器。对于图像处理方面有用。(filter. It is useful for image processing.)

说明：  hdr图片合成，四幅不同曝光的图片合成一张hdr图片(HDR picture synthesis, four pictures of different exposures synthesize an HDR picture)

有关改良Canny算法的一些还算可以的文献(Improved Canny algorithm on some literature.)

susan算子 基于边缘的图像分割 This function uses the SUSAN algorithm to find edges within an image(susan operator on the edge of the image segmentation This function uses the SUSAN algorithm to find edges within an image)