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重力正演模型
说明： 学习和掌握简单条件下规则形体重力异常的正演计算方法和形态特征，加深对课堂理论内容的理解。
根据指定形状地质体，选择不同产状和密度参数，计算出重力异常及其导数的正确结果。绘制相应的剖面异常图，观察曲线形态。(Learn and master the forward calculation method and morphological characteristics of gravity anomaly of regular body under simple conditions, and deepen the understanding of classroom theoretical content.
According to the specified shape geological body, different occurrence and density parameters are selected to calculate the correct results of gravity anomaly and its derivative. Draw the corresponding profile anomaly map and observe the curve shape.)
- 2020-11-25 21:11:56下载
- 积分：1
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kmeans
kmeans算法实现，对图像处理。亲自使用过，可用，供参考。(Kmeans algorithm for image processing.)
- 2013-10-17 10:57:41下载
- 积分：1
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ExThreshold
1、读取显示所给PET图像（SE2IM210）。
2、学习imhist函数，画出所给PET图像的直方图。
3、根据直方图为该PET图像选择合适的显示窗（imshow参数），使胸
部轮廓等解剖结构可见。
4、根据直方图选择合适阈值，分割肿瘤区域与正常区域，计算肿瘤区
域内图像灰度均值、方差、最大值及最小值。(1 give PET images displayed, read (SE2 IM210).
2, learning, imhist function, draw the give PET image histogram.
3, according to the histogram for the PET image to choose the appropriate display window (imshow parameters), make bosom
Outline of anatomical structures such as visible.
4, according to the histogram, choose appropriate threshold segmentation tumor area and normal area, calculating the tumor area
In the domain of image grayscale average and variance, the maximum and minimum values.)
- 2015-05-08 20:52:11下载
- 积分：1
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Morphology
利用数学形态学对云层背景下的目标进行检测识别，有两种方法。 (Using mathematical morphology of clouds in the context of target identification, there are two ways.)
- 2007-07-13 16:54:57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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hilbert
用hilbert曲线扫描图像后，进行图像检索的代码，里面有很多有用的代码(After scanning the image with the hilbert curve, the image retrieval code, there are a lot of useful code)
- 2011-06-16 20:25:56下载
- 积分：1
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log-gaborconvolve
说明： 使用log-Gabor滤波器对图像进行滤波程序。(The use of log-Gabor filter image filtering process.)
- 2021-03-18 19:59:20下载
- 积分：1
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Computergraphics
英文原本经典计算机图形学教程，PPT格式，很好的学习材料和上课资料(English was the classic computer graphics course, PPT format, good learning materials and school information)
- 2009-06-05 19:45:22下载
- 积分：1
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CTImageReconstruction
ct图像重建系统，本程序需要先安装和配置好vtk环境才能编译并以命令行方式运行。(ct image reconstruction system, the program you need to install and configure vtk environment to compile and run the command line.)
- 2015-12-15 17:21:08下载
- 积分：1
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Road-Extraction
说明： 遥感图像的道路提取。基于数学形态学处理的道路提取(Road Extraction from Remote Sensing Images)
- 2019-03-27 21:19:15下载
- 积分：1
