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wtmk
说明： 通过生成秘钥得到一串具有一定长度的扩频码，将原始消息序列以扩频码的长度过采样产生过采样消息序列，并将扩频码以原始消息序列的长度多次重复成伪随机序列，再令过采样消息序列与伪随机序列异或就可以生成扩频消息序列。在频率域下，将扩频消息序列以一定的嵌入强度自适应地嵌入原始图像，得到的图像具有较强的鲁棒性，比起直接嵌入，扩频水印在受到攻击后恢复出的水印信息误码率要低得多。并且扩频码长度越长，容错率就越高，鲁棒性就越好。(A sequence of spread spectrum codes with a certain length is obtained by generating a secret key. The oversampling message sequence is generated by oversampling the original message sequence with the length of the spread spectrum code, and the spread spectrum code is repeated into a pseudo-random sequence with the length of the original message sequence for many times, and then the spread spectrum message sequence can be generated by making the difference between the oversampling message sequence and the pseudo-random sequence. In the frequency domain, the spread spectrum message sequence is adaptively embedded into the original image with a certain embedding strength, and the resulting image has strong robustness. Compared with direct embedding, the error rate of the watermark information recovered from the attack of spread spectrum watermark is much lower. And the longer the spreading code length, the higher the fault tolerance rate and the better the robustness.)
- 2020-09-03 17:58:08下载
- 积分：1
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220KVmainelectricalwiringdiagram
说明： 一个十分典型的220KV电气主接线图，让初学者能很好理解电气接线图的特点(A very typical 220KV main electrical wiring diagram, so that beginners can well understand the characteristics of electrical wiring diagram)
- 2021-04-13 18:48:56下载
- 积分：1
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TV_Denosing
该程序利用全变分算法来去除图像噪声，提高图像的视觉效果。(The program to use the entire variational algorithm to remove the image noise, enhance the visual image.)
- 2008-03-12 15:38:50下载
- 积分：1
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5476544333
易语言仿彗星真彩PNG按钮源码，易语言写的图形图象编程，很好的参考。(Easy language imitation comet true color PNG button, easy graphics programming language to write, a good reference.)
- 2013-09-20 00:30:12下载
- 积分：1
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ch7_2_3
说明： 在图像分割中，利用Hough变换进行直线提取的matlab源程序。提取方法不同于一般的边缘检测算法。(In image segmentation using Hough transform for straight line extraction matlab source. Extraction method is different from the general edge detection algorithm.)
- 2008-09-30 21:03:47下载
- 积分：1
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SAR_KPCA
基于核函数的SAR图像目标识别,利用KPCA对SAR图像进行特征提取(SAR image target recognition based on kernel function，Use KPCA SAR image feature extraction)
- 2021-01-01 21:48:58下载
- 积分：1
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CT256
该上传的256张CT图片是高质量的DICOME格式人类头骨的连续序列切片图，可直接用于医学三维重建或体绘制。(The upload of 256 CT images are of high quality DICOME form a continuous sequence of the human skull slice diagram can be directly used in medical 3D reconstruction or volume rendering.)
- 2010-03-06 18:50:45下载
- 积分：1
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UCM
论文《Enhancing The Low Quality Images Using Unsupervised Colour Correction Method》提出的算法代码(algorithm code of pape《Enhancing The Low Quality Images Using Unsupervised Colour Correction Method》)
- 2015-12-24 10:55:18下载
- 积分：1
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3
说明： 采用考虑湍流内外尺度影响的退化模型来恢复大气湍流降质图像，运用包含了湍流内外尺度影响的波结构函数、折射率谱以及薄透镜成像的退化函数导出了新的退化模型。(A new degradation model includling the influence of outer-and inner-scale of turbulence is
presented to restore atmospheric turbulence degradation images. )
- 2014-01-22 16:49:22下载
- 积分：1
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汉化包
说明： 这是HALCON自带的例程，名称全部汉化。将其中文件对应index_examples_en_US.xml替换，另外operators文件夹也替换掉。(This is the routine that comes with Halcon. All names are Chinese. Index the file_ examples_ En_ US.xml Replace. In addition, the operators folder is also replaced)
- 2021-04-27 16:28:44下载
- 积分：1
