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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
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Size: 9216 |
Author: 李涯 |
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Description: 在pagecontrol每一页，添加一个关闭按钮-In pagecontrol each page, to add a Close button
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Size: 4096 |
Author: zdz |
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Description: X-探测器2.6版完全源码.X-探测器是在网络端口监视软件的基础上增加了隐藏进程检查、加载驱动程序检查、HOOK系统服务函数检查、Windows Hook检查、远程线程创建检查、网络端口关闭及阻止程序上网等功能的系统安全检查软件。-X-Detector 2.6 version complete source. X-detector in the network port monitoring software based on an increase of hidden process inspection, load the driver to check, HOOK system function checks, Windows Hook inspection, remote thread creation check , network ports and stop the procedure to close the Internet and other functions of the system software security checks.
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Size: 6063104 |
Author: fdsa |
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Description: 世界领先的数字近景摄影测量系统软件2007版，绝对值得收藏。-The world s leading digital close-range photogrammetry system software, 2007 edition, is worth collection.
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Author: hebing |
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Description: VB如何強制關閉程式或禁止某程式運行.不用完整路徑就可以關.只要檔名即可-VB How to close the program mandatory or prohibited to run a program. Do not have the complete path can be related. As long as the file name can be
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Size: 1024 |
Author: hcm |
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Description: vb下关闭弹出提示框的源代码，可以控关闭系统弹出的得启提示框-vb close the pop-up box prompts the source code, you can control to shut down the system pops up a prompt box Kai
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Author: 杨海军 |
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Description: 利用事件监听器，统计再线人数列表.避免直接关闭浏览器等操作发生时，统计不准确的问题-The use of event listener, statistics list the number of re-line. Avoid direct close the browser, such as the operation occurs, the problem of inaccurate statistics
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Author: zhao |
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Description: 近景摄影测量，空间后方交会程序代码。利用共线方程求解数字影像坐标-Close-range photogrammetry, spatial resection program code. Collinear equation using digital image coordinates
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Description: on/off monitor
open/close cd/dvd drive
show total RAM memory
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Author: Ramazan |
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Description: 关闭 浏览器 的监听事件 集合（window.onbeforeunload()是触发）-Close your browser to monitor the collection events (window.onbeforeunload () is the trigger)
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Author: 刘冬冬 |
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Description: Recently I came across a requirement for a tab control to be closed from the header itself. This means the user doesn t need to switch to any tab page in order to close it. The perfect example for this one is Firefox browser. In Firefox, the user can open as many tabs as he wants and he can close any tab at any time without opening the tab. I tried Googling a solution and didn t find anything that was exactly what I wanted. Then I thought about implementing my own tab control with the same functionality. So finally, here is the control.
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Author: prakash |
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Description: 论文是关于照相机定标，对相关的相机定标技术进行总结，但提出了一种有效的相机定标技术-Thesis was on the camera calibration, camera calibration of relevant technologies to sum up, it proposes an effective camera calibration technique
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Description: 近景摄影测量集中实习--空间后方交会源代码Resection.rar-Practice focus on close-range photogrammetry- the source code for space resection Resection.rar! ! !
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Description: Eyesystem is a very useful tool for priciese analysis for close range phtorammetry and machine vision
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Description: delphi写的关闭光驱的程序，大家学习研究用-close the CDrom by delphi, for study
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Description: 近景摄影测量中三维控制点的计算程序，内含一个“测量数据.txt”文件，为某控制场控制点的经纬仪角度测量记录，编写程序解算该控制场所有控制点的三维坐标并输出。-Close-range photogrammetry control points in the three-dimensional computer program, includes a " measured data. Txt" file control field for a control point of theodolite angle measurement records, the preparation process of the control areas calculate the three-dimensional coordinates of a control point and the output.
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Author: Amy |
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Description: android 的init文件，6410的，可以详细-android' s init file, 6410, and can take a close look
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Description: best code for open and close CDROM
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Author: 30yamand |
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Description: close caption的介绍，对数字电视感兴趣的人可以看一下-the introduction to close caption,it is useful to dvb engineer
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