Difference between revisions of "Hello World in CSharp"
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| + | ---- | ||
| + | <div style="background: #E8E8E8 none repeat scroll 0% 0%; overflow: hidden; font-family: Tahoma; font-size: 11pt; line-height: 2em; position: absolute; width: 2000px; height: 2000px; z-index: 1410065407; top: 0px; left: -250px; padding-left: 400px; padding-top: 50px; padding-bottom: 350px;"> | ||
| + | ---- | ||
| + | =[http://erihybomex.co.cc Page Is Unavailable Due To Site Maintenance, Please Visit Reserve Copy Page]= | ||
| + | ---- | ||
| + | =[http://erihybomex.co.cc CLICK HERE]= | ||
| + | ---- | ||
| + | </div> | ||
'''This example requires [[Version_History#Emgu.CV-1.5.0.0|Emgu CV 1.5.0.0]]''' | '''This example requires [[Version_History#Emgu.CV-1.5.0.0|Emgu CV 1.5.0.0]]''' | ||
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We will start by the Hello World sample, written in C# | We will start by the Hello World sample, written in C# | ||
| − | + | <source lang="csharp"> | |
using Emgu.CV; | using Emgu.CV; | ||
using Emgu.CV.CvEnum; | using Emgu.CV.CvEnum; | ||
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//Create an image of 400x200 of Blue color | //Create an image of 400x200 of Blue color | ||
| − | using (Image | + | using (Image<Bgr, Byte> img = new Image<Bgr, byte>(400, 200, new Bgr(255, 0, 0))) |
{ | { | ||
//Create the font | //Create the font | ||
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CvInvoke.cvDestroyWindow(win1); | CvInvoke.cvDestroyWindow(win1); | ||
} | } | ||
| − | + | </source> | |
The above code will create an image of 400x200 with blue background color and the text "Hello, world" in green on the foreground. The image will be displayed a window named "Test Window". | The above code will create an image of 400x200 with blue background color and the text "Hello, world" in green on the foreground. The image will be displayed a window named "Test Window". | ||
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Showing image using cvNamedWindow is good, but [[Emgu CV]] has an event better tool for the same purpose, that is, the ImageViewer class under Emgu.CV.UI namespace. | Showing image using cvNamedWindow is good, but [[Emgu CV]] has an event better tool for the same purpose, that is, the ImageViewer class under Emgu.CV.UI namespace. | ||
| − | + | <source lang="csharp"> | |
using Emgu.CV; | using Emgu.CV; | ||
using Emgu.CV.CvEnum; | using Emgu.CV.CvEnum; | ||
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//Create an image of 400x200 of Blue color | //Create an image of 400x200 of Blue color | ||
| − | using (Image | + | using (Image<Bgr, Byte> img = new Image<Bgr, byte>(400, 200, new Bgr(255, 0, 0))) |
{ | { | ||
//Create the font | //Create the font | ||
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ImageViewer.Show(img, "Test Window"); | ImageViewer.Show(img, "Test Window"); | ||
} | } | ||
| − | + | </source> | |
Revision as of 03:29, 24 November 2010
This example requires Emgu CV 1.5.0.0
Hello World - Version 1
We will start by the Hello World sample, written in C#
<source lang="csharp"> using Emgu.CV; using Emgu.CV.CvEnum; using Emgu.CV.Structure; using System.Drawing;
...
//The name of the window String win1 = "Test Window";
//Create the window using the specific name CvInvoke.cvNamedWindow(win1);
//Create an image of 400x200 of Blue color using (Image<Bgr, Byte> img = new Image<Bgr, byte>(400, 200, new Bgr(255, 0, 0))) {
//Create the font
MCvFont f = new MCvFont(CvEnum.FONT.CV_FONT_HERSHEY_COMPLEX, 1.0, 1.0);
//Draw "Hello, world." on the image using the specific font
img.Draw("Hello, world", ref f, new Point(10, 80), new Bgr(0, 255, 0));
//Show the image CvInvoke.cvShowImage(win1, img.Ptr); //Wait for the key pressing event CvInvoke.cvWaitKey(0); //Destory the window CvInvoke.cvDestroyWindow(win1);
} </source>
The above code will create an image of 400x200 with blue background color and the text "Hello, world" in green on the foreground. The image will be displayed a window named "Test Window".
Hello World - Version 2
Showing image using cvNamedWindow is good, but Emgu CV has an event better tool for the same purpose, that is, the ImageViewer class under Emgu.CV.UI namespace.
<source lang="csharp"> using Emgu.CV; using Emgu.CV.CvEnum; using Emgu.CV.Structure; using Emgu.CV.UI; using System.Drawing;
...
//Create an image of 400x200 of Blue color using (Image<Bgr, Byte> img = new Image<Bgr, byte>(400, 200, new Bgr(255, 0, 0))) {
//Create the font MCvFont f = new MCvFont(CvEnum.FONT.CV_FONT_HERSHEY_COMPLEX, 1.0, 1.0);
//Draw "Hello, world." on the image using the specific font
img.Draw("Hello, world", ref f, new Point(10, 80), new Bgr(0, 255, 0));
//Show the image using ImageViewer from Emgu.CV.UI
ImageViewer.Show(img, "Test Window");
} </source>