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直接序列扩频水印的嵌入与提取
说明: 实现直接序列扩频水印的嵌入与提取。基于待嵌入消息生成二进制水印序列,生成扩频码,用消息序列调制生成水印序列。依次处理灰度图像的每一个载体图像像素,根据相应位置 水印序列完成嵌入修改。(Realize the embedding and extraction of direct sequence spread spectrum watermark. The binary watermark sequence is generated based on the message to be embedded, the spread spectrum code is generated, and the watermark sequence is generated by message sequence modulation. Each carrier image pixel of gray image is processed in turn, and the embedding modification is completed according to the corresponding position watermark sequence.)
- 2020-12-06 20:19:23下载
- 积分:1
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mechine-learning
本书第一部分主要介绍机器学习基础,以及如何利用算法进行分类,并逐步介绍了多种经典的监督学习算法,如k近邻算法、朴素贝叶斯算法、Logistic回归算法、支持向量机、AdaBoost集成方法、基于树的回归算法和分类回归树(CART)算法等。第三部分则重点介绍无监督学习及其一些主要算法:k均值聚类算法、Apriori算法、FP-Growth算法。第四部分介绍了机器学习算法的一些附属工具。
全书通过精心编排的实例,切入日常工作任务,摒弃学术化语言,利用高效的可复用Python代码来阐释如何处理统计数据,进行数据分析及可视化。通过各种实例,...( U672C u4E66 u7B2C u4E00 u90E8 u5206 u5206 u4E3B u8991 u4ECB u7ECD u673A u5668 u5B66 u4E60 u57FA u7840 uFF0C u4EE5 u53CA u5982 u4F55 u5229 u7528 u7B97 u6CD5 U8FDB u883C u5206 u7C7B uFF0C u5E76 u9010 u6B65 u4ECB u7ECD u4E86 u591A U90BB u6CD2 u3001 u6734 u7D2 u8D1D u53F6 u65AF u7B97 u6CD5 u3001Logistic u56DE u5F52 u7B97 u6CD5 u3001 u652F u6301 u5411 u91CF u673A u3001AdaBoost u96C6 u6210 U65B9 u6CD5 u3001 u57FA u4E8E u6811 u7R4 u5F52 u7B97 u6CD2 u5286 u5206 u7C7B u56DE u5F52 u6811 uFF08CART uFF09 u7B97 u6CD5 u7B49 u3002 u7B2C u4E09 U90E8 u5209 u5109 u91A u0312 u4E9B u8E1B u8981 u7B97 u6CD5 uFF1Ak u5747 u503C u805A u7B7B U7B97 u6CD3 u30011 by default for uppercase and uupstr U4E9B u9644 u5C5E u5DE5 u5177 u3002 u5168 u4E66 u901A u8FC7 u7CBE U5FC3 u7396 u7392 u7B09 u5B09 u5B09 u5B09 u5B03 U7528 u9184 u5R4 u5904 u7403 u7R03 u7 U5206 u6790 u53CA u53EF u89)
- 2017-05-24 16:06:49下载
- 积分:1
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FFT
快速傅里叶变换的C实现,采用新的倒序算法,程序代码只有一百多行,就要以实现千个采样点的计算(Fast Fourier Transform of C realized, the introduction of a new reverse algorithm, program code, only more than 100 lines, it is necessary to achieve the 1000 sampling points calculation)
- 2007-08-14 09:24:04下载
- 积分:1
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otsu1
对最大类间方差法进行改良,引入最小类内方差,进一步提高分割效果(For improved Otsu method, introducing the minimum interclass variance, further improve the segmentation effect)
- 2014-12-14 13:56:03下载
- 积分:1
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array2
能够提取一幅图片的不变矩特征值,方便大家学习图像识别方面的开发技术(Able to extract a picture of the moment invariant features of value, to facilitate learning in the development of image recognition technology)
- 2011-07-16 11:03:02下载
- 积分:1
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灰度处理多种实现程序
利用matlab控制摄像头,对图像实时进行二值灰度处理(Using MATLAB to control the camera, the image is processed with two value gray in real time)
- 2017-11-09 13:52:18下载
- 积分:1
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hog
方向梯度直方图(Histogram of Oriented Gradient, HOG)特征,计算机视觉和图像处理中用来进行物体检测的特征描述子的实现(Histogram of oriented gradients (Histogram of Oriented Gradient, HOG) characteristics, computer vision and image processing used for object detection feature descriptor realization)
- 2015-09-07 20:12:43下载
- 积分:1
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matlab_video_cature
视频图像处理,可以实时处理视频数据,包括canny算子,边缘检测等(video image processing, real-time processing video data, including the canny operator, edge detection, etc.)
- 2007-04-08 21:39:55下载
- 积分:1
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lenabmp
该图像包含了各种细节、平滑区域、阴影和纹理,这些对测试各种图像处理算法很有用。(The image contains a variety of detail, smooth areas, shadows, and textures, which are useful for testing various image processing algorithms.)
- 2017-07-31 10:48:43下载
- 积分:1
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shangchuan
说明: 几种常用的SAR图像滤波程序:初值滤波、中值滤波、维纳滤波、Lee滤波、kuan滤波等(some common filter program of SAR image,such as Lee filter,kuan filter.)
- 2010-04-27 19:19:15下载
- 积分:1