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DCT
基于DCT域的数字水印算法主要包括水印调制、水印嵌入和水印提取，首先在嵌入载体图像之前用Logistic混沌序列对水印进行调制，得到一个只有+1和-1随机序列的水印，同时将载体图像进行全局DCT变换，然后将水印图像嵌入人类视觉系统最重要的部分，即DCT最大的系数，DC（Direct Current）部分也包含在这最大的系数中，这部分的系数满足人类视觉特性，会使水印嵌入的性能更好。嵌入算法是将水印与这些系数进行相乘获得新的系数，再用新的系数来替换原来的系数，即获得嵌入水印后的离散余弦域的图像，然后对这个变换后的图像进行IDCT，就会得到需要的水印图像。(While the carrier image digital watermarking algorithm based on DCT domain include watermark modulation, watermark embedding and watermark extraction, the first of the watermark embedded in a carrier modulated image before using Logistic chaotic sequence, only+1 and-1 to get a random sequence of watermark, Global DCT transform, then the watermark image is embedded most important part of the human visual system, i.e. the largest DCT coefficients, DC (Direct Current) in this section also contains the largest coefficient, the coefficient of this part of the human visual characteristics to meet, make watermarks Embed better performance. The watermark embedding algorithm is with these coefficients are multiplied to obtain new coefficients, and then a new factor to replace the original coefficients, namely discrete cosine domain to obtain an image watermarked and then transformed the image of this conduct IDCT, on watermark image will be needed.)
- 2015-03-24 17:13:25下载
- 积分：1
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detection
随着生产和工艺的进步，人们对产品的质量要求越来越高，基于机器视觉的在线
检测系统成为一种重要的质量控制手段。本文对应用于宽幅面、高精度的基于分布式
机器视觉的产品表面缺陷在线检测理论与算法进行了研究，并在此基础上以印刷品和
浮法玻璃的缺陷检测为例，完成了模式产品和非模式产品的缺陷在线检测系统。(With the progress of production and technology, people are increasingly demanding high quality products, based on machine vision for online 检测 system into one kind of Zhong Yao quality Kongzhishouduan. This article applies to wide format, high-precision machine vision products based on distributed-line surface defect detection theory and algorithms are studied, and on this basis, and float glass in print defect detection, for example, completed a model of products and non-model product line defect detection system.)
- 2020-06-26 22:20:02下载
- 积分：1
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MATLAB运动目标检测代码
matlab运动目标检测代码，应用了高斯混合滤波。(something useful for matlab)
- 2018-05-02 19:20:30下载
- 积分：1
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问题
说明： He met her at a party. She was outstanding; many guys were after her, but nobody paid any attention to him. After the party, he invited her for coffee. She was surprised. So as not to appear rude, she went along.
- 2020-06-23 18:00:02下载
- 积分：1
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business-card
自动匹配下拉列表框中的内容,根据所选下拉列表框的不同去加载不同的名片(Automatic matching of the drop-down list box in the content, according to the selected drop-down list box is different to load a different card
)
- 2014-07-21 11:51:22下载
- 积分：1
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icpdianyunchengxu
一个基础的ICP三维点云处理程序，可用来基础学习。(A basic ICP 3D point cloud processing program can be used for basic learning.)
- 2018-05-09 10:42:19下载
- 积分：1
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试验夹
说明： 可以通过光流法来检测运动的目标，具有很好的效果，适合新手了解(It can detect moving target by optical flow method, and can detect moving target by optical flow method, which has good effect and is suitable for novice to understand)
- 2020-07-24 15:33:46下载
- 积分：1
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NCSR_for-SR
这是文章Nonlocally Centralized Sparse Representation for SR的代码(this is the code of Nonlocally Centralized Sparse Representation for SR)
- 2020-11-24 11:19:32下载
- 积分：1
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yaogantuxiangchuli1
图像处理PDF格式的讲义，个人感觉不错，希望对大家有所帮助！(image processing PDF format overhead, personal feeling good, and I hope to help you!)
- 2007-01-12 10:57:11下载
- 积分：1
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pingjia
图像处理效果评价,评价指标包括峰值信噪比，熵，以及均方误差，具体公式请参考相关文献(photo)
- 2009-05-13 17:06:28下载
- 积分：1
