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xsk_RMA
合成孔径雷达成像算法仿真程序(Synthetic aperture radar imaging algorithm simulation program)
- 2020-09-26 21:27:46下载
- 积分：1
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ransac_fitline_and_fitellipse
可以实现Ransac拟合直线和椭圆，很方便，可以直接用。(Can be achieved Ransac fitting a straight line and ellipse, very convenient, and can be directly used.)
- 2012-10-15 15:28:04下载
- 积分：1
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motioncompensation
在成像平台运动的情况下通过对因为平台运动的补偿实现目标运动信息获取(Imaging platform in the case of movement of movement as a platform to achieve the objectives of the compensation information acquisition campaign)
- 2009-07-08 09:06:15下载
- 积分：1
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tuxiangqiege
基于像素点的全局阈值法求图像的分割
实现方法有五种：
最小极值法，最优阈值法，最大方差方法，最大熵法，迭代法(Pixel-based global threshold method for image segmentation method there are five: the smallest extreme value method, the optimal threshold method, the largest variance method, the maximum entropy method, iterative method)
- 2008-12-27 16:55:29下载
- 积分：1
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c# 一个简单的GDI画图实例
入门级GDI画图实例
- 2013-04-23下载
- 积分：1
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docLisegmentationcode
精心收集博士生编写的图像分割源代码，可以在matlab环境下使用。(Carefully prepared collection of doctoral image segmentation source code, you can use in the matlab environment.)
- 2008-05-27 13:10:37下载
- 积分：1
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A-Watermarking-Algorithm(MATLAB)--
盲水印提取时不需要参考原始载体图像,在信息隐藏、版权保护等方面具有更广泛的应用前景。提出的盲水印算法在分块离散余弦变换(DCT)和离散小波变换(DWT)的基础上,利用关系双方DCT系数和DWT系数在受到攻击时具有相同变化趋势的特点,采用关系嵌入和量化嵌入的自适应选择嵌入策略,较大幅度地提高了盲水印提取的鲁棒性。同时在量化嵌入中采用抖动调制,实现了水印透明性和鲁棒性调节的便捷性。大量仿真实验结果表明该算法对噪声干扰、低通滤波、JPEG压缩、对比度增强等攻击有很好的鲁棒性和透明性。关键词 数字水印盲水印关系嵌入量化嵌入离散余弦变换离散小波变换
按这篇文章的算法，自己编的matlab,没有攻击时水印提取率为1，加水印后图像PSNR有45+，。有攻击后提取率也有0.9+。(Blind watermark extraction can be fulfilled without referring to the original host image. Therefore it hasmuch
prospective applications in the fields of information hiding and copyright protection. Based on blocking Discrete Cosine
Transform (DCT) and blocking DiscreteWaveletTransform (DWT), the proposed blind watermarking algorithm uses an
embedding strategy of adaptively selecting either relationship embedding or quantization embedding. The relationship em-
bedding comes from the observation thatboth themagnitudes of coefficients concerned in the relationship usually have thesame change trend when the image is attacked. This strategy remarkably improves the robustness ofwatermark extraction.In addition, dithermodulation is used in quantization embedding, bywhich the tradeoff between transparency and robus-tness ofwatermarking can be easily adjusted. Simulation results show that the algorithm is fairly robust against the attacks such as noise, filtering, compression, and contrast )
- 2013-04-14 16:15:47下载
- 积分：1
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bscb-for-image-inpainting
BSCB模型用于图像修复，模仿人工修复的过程，利用PDE的方式(BSCB model for image restoration, to imitate the artificial restoration process, the use of PDE way)
- 2012-06-25 10:28:07下载
- 积分：1
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jpeg_quality_score
基于JPEG压缩的无参考图像质量评价算法，输入一幅图像，输出图像的评价值，值在0-100之间，越接近0图像的质量越好(JPEG-based compression algorithm for no-reference image quality assessment, an input image, the output image uation value, a value between 0-100, closer to 0 the better the image quality)
- 2014-11-27 14:12:41下载
- 积分：1
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soble-edge
matlab实现的soble算法，自己输入阈值，然后得到边缘提取图像(matlab achieved soble algorithm, input their own threshold, and then get the image edge detection)
- 2009-05-30 22:57:31下载
- 积分：1
