Tutorial by Examples: w

It's not the best way of iterating through the pixels; however, it's better than cv::Mat::at<T>. Let's assume you have a color image in your folder and you want to iterate each pixels of this image and erase green and red channels(Note that this is an example, you can do this in more optimize...

var page = require('webpage').create(); page.open('http://www.google.com', function(status) { console.log("Status: " + status); var title = page.evaluate(function() { return document.title; }); console.log("Loaded page: " + title); phantom.exit(); });

Decision boundary when we classify using logistic regression- Decision boundary when we classify using SVM- As it can be observed, SVM tries to maintain a 'gap' on either side of the decision boundary. This proves helpful when we encounter new data. With new data- Logistic regression perform...

This example shows how to validate forms in Spring MVC using Bean Validation API using Java Annotations, without any xml. User will be proposed to input their registration data and validator will check it for validity. Add Dependencies First of all add the following dependencies in your project: ...

While launching an application firstly main thread is executed. This Main thread handles all the UI concept of application. If we want to run long the task in which we don't need the UI then we use thread for running that task in background. Here is the example of Thread which describes blow: new ...

Format: cd "<path>" Example: cd "C:\Program Files (x86)\Microsoft Office" cd is an abbreviation for chdir and the two commands behave in the exact same way. For the sake of consistency, cd will be used throughout this topic. To navigate to the directory one leve...

Usage to list all folders and files in the current directory: dir A target directory can also be specified: dir C:\TargetPath When specifying a path with spaces, it must be surrounded by quotes: dir "C:\Path With Spaces"

Install the NLog.Config package. (NuGet 3 users should install NLog and add the config manually.) Write to logger: using NLog; public class MyClass { private static Logger logger = LogManager.GetCurrentClassLogger(); public void MyMethod1() { logger.Trace("Sample trace mess...

[merge] tool = intellij [mergetool "intellij"] cmd = cmd \"/C D:\\workspace\\tools\\symlink\\idea\\bin\\idea.bat merge $(cd $(dirname "$LOCAL") && pwd)/$(basename "$LOCAL") $(cd $(dirname "$REMOTE") && pwd)/$(basename "$REM...

[diff] tool = intellij guitool = intellij [difftool "intellij"] path = D:/Program Files (x86)/JetBrains/IntelliJ IDEA 2016.2/bin/idea.bat cmd = cmd \"/C D:\\workspace\\tools\\symlink\\idea\\bin\\idea.bat diff $(cd $(dirname "$LOCAL") && pwd)/$(ba...

Turn on Debug from menu - view > debug it return some error during start debug, show pop out notification and open launch.json from this popup notification It is just because of launch.json not set for your workspace. copy and paste below code in to launch.json //new launch.json your old lau...

Add-Type -AssemblyName PresentationFramework [xml]$XAMLWindow = ' <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Height="Auto" SizeToContent="WidthAndHeig...

This is an actual useful strategy to differentiate member data from parameters... Lets take this example : // Dog Class Example #include <iostream> #include <string> using std::cout; using std::endl; /* * @class Dog * @member name * Dog's name * @function bark * ...

I common problem encounter when scrapping a web is how to enter a userid and password to log into a web site. In this example which I created to track my answers posted here to stack overflow. The overall flow is to login, go to a web page collect information, add it a dataframe and then move to t...

Attributes can be useful for denoting metadata on enums. Getting the value of this can be slow, so it is important to cache results. private static Dictionary<object, object> attributeCache = new Dictionary<object, object>(); public static T GetAttribute<T, V>(this V va...

Weighted Job Scheduling Algorithm can also be denoted as Weighted Activity Selection Algorithm. The problem is, given certain jobs with their start time and end time, and a profit you make when you finish the job, what is the maximum profit you can make given no two jobs can be executed in parallel...

Consider the dataframes left and right left = pd.DataFrame([['a', 1], ['b', 2]], list('XY'), list('AB')) left A B X a 1 Y b 2 right = pd.DataFrame([['a', 3], ['b', 4]], list('XY'), list('AC')) right A C X a 3 Y b 4 join Think of join as wanting to combine to dat...

The onTouchEvents() for nested view groups can be managed by the boolean onInterceptTouchEvent. The default value for the OnInterceptTouchEvent is false. The parent's onTouchEvent is received before the child's. If the OnInterceptTouchEvent returns false, it sends the motion event down the cha...

Add the Gtk dependecy to your Cargo.toml: [dependencies] gtk = { git = "https://github.com/gtk-rs/gtk.git" } Create a simple window with the following: extern crate gtk; use gtk::prelude::*; // Import all the basic things use gtk::{Window, WindowType, Label}; fn main() { ...