搜索资源列表
gvf_model
- 图像分割中常用的主动轮廓模型的一个经典算法,GVF(梯度矢量流模型)-Segmentation commonly used active contour model of a classical algorithm, gradient vector flow (gradient vector model)
touyingfangfa
- 将图像序 列中的每一帧图像分别沿水平和垂直方向进行积分投影形成两个积分投影向量,并应用基于梯度 的一维平移估计技术处理,从而精确地获取二维空间上的平移量。-image sequence of images for each frame along the horizontal and vertical direction integral projection formed two integral projection Vector and applications based on
snakepaper
- Snake 动态轮廓模型,GVF Snake,经典文章两篇。Active contour model. Kass Snakes Active Contour Models, Xu , Snakes, Shapes, and Gradient Vector Flow
gradient-vector-flow-algrithm(VC)
- 利用梯度矢量流算法进行轮廓提取(图像分割),不错的方法,对原来的ACM模型进行改进(active contour model 活动轮廓模型)-using gradient vector flow algrithm to extract image contour,improvement from active contour model
SNAKEGVF
- Active contour models, deformable surface models, edge detection, gradient vector flow, image segmentation, shape representation and recovery, snakes.-Active contour models, deformable surface models, edge detection, gradient vector flow, image s
SVM_Finger
- 指纹图像的质量测量与评价,在指纹图像分割、增强及指纹匹配等环节都有重要应用. 同时,指纹图像的质量分类,对指纹识别算法的适用性研究也有重要意义. 本文提出一种基于支持向量机的指纹图像质量分类方法.该方法选择梯度、Gabor特征、方向对比度等指标,利用支持向量机有效实现指纹图像质量分类. 并采用少类样本合成过采样技术( SMOTE)降低指纹图像质量好坏的类别不平衡问题对分类的影响. 理论分析和实验结果都表明该方法能够较为有效地提高指纹图像质量分类的正确率.-Fingerprint Image Qu
m-file
- 《数字图像处理》源码 部分函数列表 bayesgauss - Bayes classifier for Gaussian patterns. bound2eight - Convert 4-connected boundary to 8-connected. bound2four - Convert 8-connected boundary to 4-connected. bound2im - Convert boundary to image. boundar
gvf_SSF
- 基于gvf(Gradient Vector Flow)的主动轮廓模型(snake)图像分割算法。 包括3个算法的实现,即基本SNAKE,ballon snake, 和GVF snake. 都采用了参数解法,很适合初学者使用-Based gvf (Gradient Vector Flow) of the active contour model (snake) segmentation algorithm. Including the three algorithm, namely, th
Grad-U-and-moving-rules
- 计算梯度向量Grad U和圆饼的移动规则:将所有的力都正因分解,分解成x轴方向和y轴方向的力,整个问题就简单化了,通过分别求出x轴方向和y轴方向的力之和,就可以知道该圆饼将要移动的轨迹,而x轴方向和y轴方向的合力方向应该就是该圆饼的梯度向量的方向。而所有圆饼的梯度向量就组成了Grad U-Because of all the forces are decomposed into the x-axis direction and the y-axis direction of the force,
GVF-Snake-model-
- :通过对梯度矢量流(GVF)力场迭代和轮廓收敛过程中时间开销大、不能逼近较复杂轮 廓等不足之处的分析,提出了一种新的初始轮廓线的设置方法。基于小波变换的多尺度轮廓检测算 法,能够较精确地定位出各类轮廓,在此基础上设置的初始轮廓线能够非常好地靠近图像中的各种真 实轮廓。实验结果表明,此方法有效地缩小了搜索的范围,减少了GVF迭代次数,提高了轮廓收敛的 速度,并保留了GVF Snake模型的所有优点。-: The gradient vector flow (GVF) field it
HOGTestDisp
- 自己实现的程序,用于显示HOG特征的梯度向量分布,方便查看HOG是否适用于描述当前物体,对于做研发的同学很有用-Their implementation procedures, used to display the gradient vector distribution HOG feature, for easy viewing HOG apply to describe the current object is useful for students doing research wit
gvf_dist_v4.2c
- 用matlab演示的梯度向量流。分为三种:原蛇、气球蛇、距离蛇-With a the matlab demo gradient vector flow. Divided into three types: the original snake, balloon snake from snake
seam-carving
- findEnergy.m 计算出图像的梯度图 findSeamImg.m 计算出所有可能的竖直缝 findSeam.m找出能量最小的一条竖直缝 removalMap.m将需要删除的N条竖直缝存储起来并按照索引逐条删除 SeamCut.m将选中的缝一条条的删除 SeamPlot.m在图中画出要删除的缝 Testseam.m调用以上函数的主程序-FINDENERGY creates an gradient img from a given RGB or grayscale i
U64
- 根据不同的方法对U型图进行分割,得出梯度矢量流的优点,它更方便于对图像分割-Depending on the method of U-shaped graph partitioning, the advantages derived gradient vector flow, it is more convenient for image segmentation
door
- 门型图和U型图还是有很大区别的,门型图是断开的,但梯度矢量流照样能完美分割出来-Door type and U-chart diagram is still a great difference, door type map is disconnected, but can still perfect gradient vector flow split
ruzonCompass
- 罗盘算子性能超过Canny算子,相比其他算子,它以像素颜色分布代替均值,利用EMD距离找到罗盘直径方向,该方向的直径能最大化圆形窗口中被直径分隔开的两半区域的差异,此方向即为边缘方向,两半圆区域之间的差异度即为边缘幅值,两者构成向量,类似于梯度,用于检测edges、corners和junctions。-Compass operator performance over the Canny operator, compared to other operators, it is replaced
lca
- 柏松选择性对比度调整,该算法自动调整对比度,使得图像清晰度增强。需要fftw3.-Selective Contrast adjustment, Given an image, the algorithm modifies the gradient vector field of the image and finally it recovers the new image by solving the poisson equation using the Fast Fourier Transf
snake
- GVF snake模型算法matlab源程序,GVF是根据光流场原理,利用变分方法,从图像中得到的一种向量场,该向量场被称为梯度矢量流(GVF)场。-GVF snake model algorithm matlab source, GVF is based on the principle of optical flow field, using the variational method, a vector field obtained from the image, the vector
Gradient-vector-diffusion-denoising
- 梯度矢量扩散控制实现边缘保持的彩色图像去噪-Gradient vector diffusion denoising realize control color image edge preserving
fhog
- 利用c语言编写的,在matlab环境下运行mex函数可以生成动态的dll库,可以用来计算图像区域的梯度向量直方图特征。-Use c language, in the matlab environment running mex function can generate dynamic dll library that can be used to calculate the gradient vector histogram image area.
