Search - image boundary

[Graph program] Integer-pel EBMA

Description: A real working program needs to check whether a pixel in the candidate matching block falls outside the image boundary and such pixel should not count in MAD. This program is meant to illustrate the main operations involved. Not the actual working matlab script.
Platform: | Size: 498 | Author: mamamiaya | Hits:

[Special Effects] 2223222

Description: 我们给出一个模板和一幅图象。不难发现原图中左边暗，右边亮，中间存在着一条明显的边界。进行模板操作后的结果如下：。可以看出，第3、4列比其他列的灰度值高很多，人眼观察时，就能发现一条很明显的亮边，其它区域都很暗，这样就起到了边沿检测的作用。为什么会这样呢？仔细看看那个模板就明白了，它的意思是将右邻点的灰度值减左邻点的灰度值作为该点的灰度值。在灰度相近的区域内，这么做的结果使得该点的灰度值接近于0；而在边界附近，灰度值有明显的跳变，这么做的结果使得该点的灰度值很大，这样就出现了上面的结果。这种模板就是一种边沿检测器，它在数学上的涵义是一种基于梯度的滤波器，又称边沿算子，你没有必要知道梯度的确切涵义，只要有这个概念就可以了。梯度是有方向的，和边沿的方向总是正交(垂直)的，例如，对于上面那幅图象的转置图象，边是水平方向的，我们可以用梯度是垂直方向的模板检测它的边沿。例如，一个梯度为45度方向模板，可以检测出135度方向的边沿。-we give a template and an image. It is not difficult to find the maximum were left dark, right-liang, in the middle there is a clear boundary. After the template for the operation results are as follows :. Can be seen, three, four out other than the gray value is much higher, eye observation, we can obviously found a bright side. Other regions are dark, and this has played a role in the detection of 2500. Why is this the case? A closer look at the template on which to understand it. It means the right to the point o gray minus left point as a gray value of the point of gray values. In a similar gray area, do so as a result of the point of gray values close to 0; And near the border. gray values jump significantly changed, the results do make the point very gray value, and this appeared to
Platform: | Size: 9216 | Author: 李涯 | Hits:

[Special Effects] hough_lw

Description: 利用霍夫变换来实现图像的边界检测，本代码实现圆和直线的检测-use Hough transform to image the boundary detection, the moon and the code to achieve a linear detection
Platform: | Size: 30720 | Author: liuwei | Hits:

[Special Effects] BoundaryDetectionVc++Res

Description: 图像处理中的边缘检测以及曲线拟合的结合应用，实现边缘连接和线段拟合源码-image processing edge detection and curve fitting combination of applications, connectivity and edge line fitting FOSS
Platform: | Size: 13312 | Author: 牛牛 | Hits:

[2D Graphic] boundaries

Description: 利用边界追踪法对图像进行轮廓提取，此函数文件得到的是边界点对应位置索引矩阵-The use of boundary-tracing method of image contour extraction, this function is to document the location of boundary points corresponding to the index matrix
Platform: | Size: 2048 | Author: 蒲金霞 | Hits:

[Special Effects] bsubsamp

Description: 数字图像处理(冈萨雷斯)书中的边界链码实现,该程序通过取网格,简化了编码的数据量-Digital image processing (Gonzalez) the boundary chain code book, realize that the procedures through access grid, simplifying the coding of data
Platform: | Size: 2048 | Author: 陈娟 | Hits:

[Special Effects] detect_boundary

Description: 图像边缘识别，侦测图像的边界并且得到边界点坐标-Edge identification, boundary detection and image coordinates of boundary points to be
Platform: | Size: 73728 | Author: sient | Hits:

[Special Effects] traceprogrames

Description: track1.m是二值图像边界跟踪的主程序，boundary_trace.m是二值图像边界跟踪的调用程序，完成图像的边界跟踪。 track2.m是灰度图像边界跟踪的主程序，boundary_trace2.m是灰度图像边界跟踪的调用程序。-track1.m is a binary image of the main border track, boundary_trace.m is a binary image border call tracking procedure to track the completion of the border image. track2.m gray image is the border of the main track, boundary_trace2.m is a gray image boundary tracking procedure call.
Platform: | Size: 22528 | Author: 付晓薇 | Hits:

[matlab] bound2four_pfile

Description: Matlab pfile for converting a binary image boundary to a 4-connected boundary.
Platform: | Size: 3072 | Author: mklenge | Hits:

[Graph Recognize] Image-ReflectBndry

Description: texture-boundary detection by using wide odd-symmetric mechanisms.
Platform: | Size: 1024 | Author: yashar | Hits:

[Special Effects] Image-Segmentation

Description: 一个基于图形的高效图像分割算法，包括论文及相应的源代码。-This paper addresses the problem of segmenting an image into regions. We define a predicate for measuring the evidence for a boundary between two regions using a graph-based representation of the image. We then develop an efficient segmentation algorithm based on this predicate, and show that although this algorithm makes greedy decisions it produces segmentations that satisfy global properties. We apply the algorithm to image segmentation using two different kinds of local neighborhoods in constructing the graph, and illustrate the results with both real and synthetic images. The algorithm runs in time nearly linear in the number of graph edges and is also fast in practice. An important characteristic of the method is its ability to preserve detail in low-variability image regions while ignoring detail in high-variability regions
Platform: | Size: 455680 | Author: xudq | Hits:

[Other] A_New_Algorithm_for_A_Binary_Image_Edge_Detection.

Description: 文中提出了一种新的二值图象边界提取算法。通过分析边界象素的特征，归纳出一个边界象素提取算子，该算子最多只需要计算象素的4邻域象素，运算量小，速度快，运用他能直接提取出二值图象的边界象素，得到单象素宽的边界。实验结果表明．该算法要优于传统的二值图象边界提取算法，实用性强。-In this paper, a new binary image boundary extraction algorithm. By analyzing the characteristics of the boundary pixels to formulate a boundary pixel extraction operator, the operator need only calculate up to 4 pixels neighborhood pixels, is efficient, fast, he can direct the use of binary images are extracted as the boundary pixel, are single-pixel wide border. The results show that. The algorithm is superior to the traditional binary image edge detection algorithm, and practical.
Platform: | Size: 431104 | Author: ledan | Hits:

[Special Effects] image_processing

Description: 本程序是基于Matlab的米粒图像的分割、计数以及周长、面积、形状因子等参数的计算。图像分割是基于腐蚀膨胀算法，选用边界跟踪法计算周长，程序代码清晰明了，对于参数的计算速度较快，且参数计算精度较高。-This procedure is based on the Matlab image segmentation grain of rice, counting and perimeter, area, shape factor and other parameters of the calculation. Image segmentation is based on the corrosion expansion algorithm, the choice of boundary tracking method perimeter, code clarity, the parameter calculation is faster and higher precision parameters.
Platform: | Size: 1024 | Author: yingl | Hits:

[matlab] boundary-detection

Description: Image boundary detection program in matlab
Platform: | Size: 8192 | Author: Mushtaq | Hits:

[Special Effects] matlab-boundary-chain

Description: matlab提取边界链码，对做图像边界配准有一定作用-Matlab to extract the boundary chain code and registration have certain effect to do image boundary
Platform: | Size: 6144 | Author: 李亮 | Hits:

[Software Engineering] plane-boundary-extraction

Description: 利用matlab设计了一个对飞机边界进行提取，并叠加在原图上的GUI界面。GUI界面主要功能包括打开飞机图像文件、显示飞机图像文件、显示处理结果及文件保存等- A GUI interface extracting image boundary and superimposing on original image is designed by using MATLAB. The main functions of the GUI interface as follows: open the image, display the image, display the processing results and file storage.
Platform: | Size: 752640 | Author: 孔春伟 | Hits:

[Special Effects] image-boundary

Description: visual C++导入OpenCV库，实现一个简单的图像处理例子，求图像的边界，本代码含详细注释，适合学习。-visual C++ import OpenCV library that implements a simple image processing example, find the image of the border, the code contains detailed notes, suitable for learning.
Platform: | Size: 2048 | Author: 丁妍 | Hits:

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