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- 】本文首先简单回顾了基于抛物型偏微分方程的图像恢复模型。在此基础上,提出了一个通过 可变权重联合各向同性扩散和金变分模型的图像恢复模型,该权重参数依赖于图像曲面的几何特征。 最后,通过数值实验论证了算法的有效-Abstract:In this paper,we study the dynamic behavior of a class of predator prey system with stage-structure and Beddington-DeAngelis funct
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- 为对图像的缺损部分进行快速自动修复, 提出了一种基于曲率驱动修复模型的快速图像修复算法。曲率驱动修复模 型由于引入了曲率项, 使其偏微分方程为高阶, 修复时需要数值求解偏微分方程, 大量迭代运算导致修复速度非常缓慢。为 加快修复速度, 算法将模型的偏微分方程数值化, 进一步改造成加权平均形式, 利用邻近已知像素直接合成损坏像素, 加权 系数由曲率和梯度共同确定, 使修复按照图像等照度线方向进行, 在曲率大的地方将等照度线拉伸, 同时由待修复点邻域内 已知像素的梯度方差确定修复次序
DIFF
- 可用于打开/保存位图,并可实现对位图的图像微分:纵向微分、横向微分、双向一次微分、二次微分、三次微分-Can be used to open/save the bitmap, and can realize the differential bitmap image: a longitudinal differential, transverse differential, bidirectional time differential, quadratic differential, thre
PDE_in_image_processing
- 图像处理中的偏微分方程法,供研习者学习与参考。-Method of partial differential equations in image processing, for learning to learn and reference.
blurdegree
- 图像处理中运动模糊的角度估计,主要是空域中的微分-Motion blur in the image processing angle estimation, the main differential airspace
PDE1
- 图像处理中PDE(偏微分方程)的PPT学习资料,十分易懂,适合初学者学习-Image processing PDE of PPT learning materials, very easy to understand for beginners to learn
PDE2
- 图像处理中PDE(偏微分方程)的PPT学习资料2,十分易懂,适合初学者学习-Image processing PDE s PPT learning materials, very easy to understand for beginners to learn
Information-on-image-enhancement
- 关于图像增强的资料,利用变分偏微分的方法,易懂有效。-Information on image enhancement.Using the variational partial differential method, it is understandable and effective
sift-alghrithms
- SIFT算法大致有四个步骤: 1,尺度空间极值检测。在尺度空间通过高斯微分函数来检测潜在的对于尺度和旋转不变的兴趣点。 2,关键点定位。在兴趣点位置上,确定关键点的位置和尺度。3,方向确定。基于图像局部的梯度方向,给每个关键点分配方向。4,关键点描述。在每个关键点的领域内测量图像局部的梯度。最终用一个特征向量来表达。-SIFT algorithm roughly four steps: 1, the scale space extremum detection. In the sc
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- MATLAB源代码 MATLAB求解混沌系统微分方程组-The digital image scrambling technology based on affine transformation MATLAB source code
tv_original
- tv模型代码,用到的偏微分方程技巧和各项异性扩散-tv model code, techniques used in partial differential equations and anisotropic diffusion
demons
- 微分同胚demons算法,实现大位移的脑图像配准-Diffeomorphic demons: Efficient non-parametric image registration
ADI
- ADI交替方向隐格式算法,实现偏微分方程P-M方程的-ADI alternating direction implicit algorithm, the realization of partial differential equation of P- M equation
Color_dirct_Diff
- 一个基于方向扩散偏微分方程的图像滤波码源,包括改进的加入边缘停止响应函数的方法-An image filtering based on direction diffusion partial differential equation of source code, including improved edge stop response function method
ImageObject
- 图像锐化,包含高通滤波,微分法,锐化图形表示方法,反锐化掩模法-image sharpening
vtkMain
- 边缘检测,包含基于微分的边缘检测,基于模板匹配的边缘检测,基于hough变换的边缘检测-edge tracking
ian_mitchell-toolboxls
- 这个工具箱是对水平集方法的matlab程序的搜集。这些程序应用数值算法在任一维度来近似基于时间变化的汉密尔顿雅可比偏微分方程的解。汉密尔顿雅可比偏微分方程常用动画演示动态隐式曲面,计算流体动力学,并且它是独立在最优控制,微分博弈机器人,金融数学,连续的可达性等兴趣领域。-The Toolbox of Level Set Methods (ToolboxLS) is a collection of Matlab routines that implement numerical algorit
Image-registration
- 该程序能实现遥感图像配准,根据同名点实现图像的配准,且能实现单片微分纠正 。-The program can achieve remote sensing image registration。Achieving image registration using points of the same name.This program can achieve single-chip differential rectification.
cgdemoView
- 数值微分DDA画线法、中点画线法、Bresenham画线法、中点画圆法、中点画椭圆法、递归种子填充算法、简单种子填充算法、Liang_Barsky裁剪算法、Suther_Land多边形 、扫描线种子填充算法-DDA line drawing numerical differentiation method, the dotted line method, Bresenham line drawing method, midpoint Circle France, were dotted el
Laplacian
- Laplacan 算子是二阶微分算子, 它具有旋转不 变性, 即各向同性的性质.-Laplacan operator is a second order differential operator, which has not rotate Denaturation, i.e., isotropic properties.