canny algorithm

Http://blog.csdn.net/orbit/article/details/7343236 1.3 scanning line Seed Filling Algorithm The two seed filling algorithms described in sections 1.1 and 1.2 have the advantage of being very simple. The disadvantage is that recursive algorithms are used, which not only requires a large amount of stack space to store adjacent points, and the efficiency is not high. In order to reduce recursive calls in algorithms and reduce stack space usage, many impr

How genetic algorithms work 1. algorithm Overview The following outline summarizes the algorithm work process. 1. The algorithm generates an initial and random population. 2. Algorithms generate a series of new populations. In each step of the algorithm, the algorithm uses t

1. What is an algorithm?Algorithms are a series of clear instructions for solving problems, that is, they can obtain the required output within a limited period of time for certain standard input. Algorithms often contain repeated steps and comparison or logical judgment. If an algorithm has a defect or is not suitable for a problem, executing the algorithm will

Reprinted from http://blog.csdn.net/zolalad/article/details/11393915A summary of the five common algorithms design methods for algorithm designI. "Divide and Conquer law"In computer science, divide-and-conquer method is a very important algorithm. The literal explanation is "divide and conquer", which is to divide a complex problem into two or more identical or similar sub-problems, then divide the problem

1, the page replacement algorithm is why the basics of how virtual page storage Management works: before the process runs, instead of loading all the pages, instead of loading all the pages, load one or 0 pages, then dynamically mount the other pages according to the needs of the process, and when the memory space is full and the new pages need to be loaded, some sort of algorithm eliminates a page in orde

A simple and easy-to-learn machine learning algorithm--EM algorithmThe problem of parameter estimation in machine learningIn the previous blog post, such as the "easy-to-learn machine learning algorithm--logistic regression", the maximum likelihood function is used to estimate the parameters of the model, in a nutshell, the logistic regression problem belongs to the supervised learning problem in a series o

I. PrefaceSince the realization of the importance of the algorithm, LZ to the algorithm is love and hate, Love is because the algorithm is really interesting to learn,If you have ever had an affair with mathematics, you will naturally have an affection for the algorithm after contacting the

Maximum sub-sequence and algorithm analysis, sub-sequence algorithm analysis Problem Description: Given n integer sequence {a1,a2,..., an}, function f (i,j) =max{0,σak} (k: Continuous from I to j); The problem is the maximum value of the continuous sub-columns, if the maximum is negative, take 0, such as 8 number sequence { -1,2,-3,4,-2,5, -8,3}, the maximum subsequence and the 4+ (-2) +5=7. This problem h

Subject:Algorithm and algorithm design requirements Purpose:Understanding the definition and features of algorithms and the requirements of Algorithm Design Teaching focus:Algorithm features and design requirements Teaching difficulties:Algorithm Design Requirements Course content: I. Definition and features of Algorithms 1. Definition: Ispass (INT num [4] [4]) {Int I, J;For (I = 0; I For (j

Previous wordsThis article describes the complexity of the algorithm in detailLarge O notationLarge o notation is a description of the performance and complexity of the algorithm. The following types of functions are often encountered when parsing an algorithmsymbol nameO (1) constant O (log (n)) logarithm O ( (log (n)) c) logarithmic polynomial O (n) Linear O ( n2)

is large enough, you can use a strong reference directly as a cache, while controllability is higher. Thus, they are commonly used in the caching of desktop application systems. Here's a basic garbage collection algorithm. The garbage collection algorithm can be divided from different angles. according to the basic recycling strategy reference count (Reference counting): The older collection

Prim algorithm 1. Overview Prim algorithm(Prim algorithm), an algorithm in graph theory that can search for the minimum spanning tree in a weighted connected graph. That is, in the tree composed of edge subsets searched by this algorithm, not only all vertices in a connected

the subject of this lesson: algorithm and algorithm design requirements Teaching Purpose: to master the definition and characteristics of algorithm, the requirements of algorithm design Teaching emphases: the characteristic of algorithm, the design requirement of

. The vertex set of each connected component of a non-connected graph + elapsed edge = Several spanning trees (spanning forest) Minimum spanning treeGiven a non-direction network, in all spanning trees of the net, the spanning tree with the smallest sum of edge weights is called the smallest spanning tree of the network.Question: To establish a transport network between the N cities, how to consider the most cost savings under the previous question of ensuring n-point connectivity?How to fi

Turn from: http://xuchengji.blog.51cto.com/160472/324502 At present, there are three kinds of request forwarding methods and eight scheduling algorithms in LVs. Depending on the way of request forwarding, the network topology, installation method and performance of the cluster are different. LVS can be mainly structured into three types of clusters, respectively, Lvs/nat, Lvs/tun and Lvs/dr, can be selected according to the needs of one. In the case of selecting the forwarding mode, which sched