Best Blog for C Sharp and Dot Net Lovers . : Implement corner detection in C#

using System;
using System.Windows.Forms;
using Ozeki.Camera;
using Ozeki.Media;
using Ozeki.Vision;

namespace CornerDetection_WF
{
public partial class MainForm : Form
{
private OzekiCamera _camera;
private MediaConnector _connector;
private CameraURLBuilderWF _myCameraUrlBuilder;
private ImageProcesserHandler _imageProcesserHandler;
private ICornerDetector _cornerDetector;
private FrameCapture _frameCapture;
private DrawingImageProvider _originalImageProvider;
private DrawingImageProvider _processedImageProvider;

public MainForm()
{
InitializeComponent();
}

void MainForm_Load(object sender, EventArgs e)
{
Init();

SetVideoViewers();

InitDetectorFields();
}

void Init()
{
_frameCapture = new FrameCapture();
_frameCapture.SetInterval(5);
_myCameraUrlBuilder = new CameraURLBuilderWF();
_connector = new MediaConnector();
_originalImageProvider = new DrawingImageProvider();
_processedImageProvider = new DrawingImageProvider();

_cornerDetector = ImageProcesserFactory.CreateCornerDetector();

_imageProcesserHandler = new ImageProcesserHandler();
_imageProcesserHandler.AddProcesser(_cornerDetector);
}

void SetVideoViewers()
{
OriginalViewer.SetImageProvider(_originalImageProvider);
ProcessedViewer.SetImageProvider(_processedImageProvider);
}

void InitDetectorFields()
{
InvokeGuiThread(() =>
{
tb_blocksize.Text = _cornerDetector.BlockSize.ToString();
tb_mindistance.Text = _cornerDetector.MinDistance.ToString();
});
}

void ConnectCam()
{
_connector.Connect(_camera.VideoChannel, _originalImageProvider);

_connector.Connect(_camera.VideoChannel, _frameCapture);
_connector.Connect(_frameCapture, _imageProcesserHandler);
_connector.Connect(_imageProcesserHandler, _processedImageProvider);
}

void Start()
{
OriginalViewer.Start();
ProcessedViewer.Start();

_frameCapture.Start();
_camera.Start();
_imageProcesserHandler.Start();
}

void btn_HighlightSet_Click(object sender, EventArgs e)
{
InvokeGuiThread(() =>
{
_cornerDetector.BlockSize = int.Parse(tb_blocksize.Text);
_cornerDetector.MinDistance = int.Parse(tb_mindistance.Text);
});
}

void InvokeGuiThread(Action action)
{
BeginInvoke(action);
}

private void button_Compose_Click(object sender, EventArgs e)
{
var result = _myCameraUrlBuilder.ShowDialog();

if (result != DialogResult.OK) return;

tb_cameraUrl.Text = _myCameraUrlBuilder.CameraURL;

button_Connect.Enabled = true;
}

private void button_Connect_Click(object sender, EventArgs e)
{
if (_camera != null)
{
_camera.CameraStateChanged -= _camera_CameraStateChanged;
_camera.Disconnect();
_connector.Disconnect(_camera.VideoChannel, _processedImageProvider);
_connector.Disconnect(_camera.VideoChannel, _originalImageProvider);
_camera.Dispose();
_camera = null;
}
_camera = new OzekiCamera(_myCameraUrlBuilder.CameraURL);
_camera.CameraStateChanged += _camera_CameraStateChanged;
button_Connect.Enabled = false;
ConnectCam();
Start();
}

private void _camera_CameraStateChanged(object sender, CameraStateEventArgs e)
{
InvokeGuiThread(() =>
{
if (e.State == CameraState.Streaming)
button_Disconnect.Enabled = true;

if (e.State == CameraState.Disconnected)
{
button_Connect.Enabled = true;
button_Disconnect.Enabled = false;
}
});

InvokeGuiThread(() =>
{
stateLabel.Text = e.State.ToString();
});
}

private void button_Disconnect_Click(object sender, EventArgs e)
{
if (_camera == null) return;
_camera.Disconnect();
_connector.Disconnect(_camera.VideoChannel, _originalImageProvider);
_connector.Disconnect(_camera.VideoChannel, _processedImageProvider);
_camera = null;
}
}
}

namespace CornerDetection_WF
{
partial class MainForm
{
private System.ComponentModel.IContainer components = null;

protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}

#region Windows Form Designer generated code

private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.tb_blocksize = new System.Windows.Forms.TextBox();
this.tb_mindistance = new System.Windows.Forms.TextBox();
this.label5 = new System.Windows.Forms.Label();
this.label4 = new System.Windows.Forms.Label();
this.groupBox2 = new System.Windows.Forms.GroupBox();
this.btn_HighlightSet = new System.Windows.Forms.Button();
this.OriginalViewer = new Ozeki.Media.VideoViewerWF();
this.ProcessedViewer = new Ozeki.Media.VideoViewerWF();
this.groupBox5 = new System.Windows.Forms.GroupBox();
this.stateLabel = new System.Windows.Forms.Label();
this.label14 = new System.Windows.Forms.Label();
this.button_Connect = new System.Windows.Forms.Button();
this.button_Disconnect = new System.Windows.Forms.Button();
this.tb_cameraUrl = new System.Windows.Forms.TextBox();
this.label13 = new System.Windows.Forms.Label();
this.button_Compose = new System.Windows.Forms.Button();
this.groupBox2.SuspendLayout();
this.groupBox5.SuspendLayout();
this.SuspendLayout();

this.label1.AutoSize = true;
this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(238)));
this.label1.Location = new System.Drawing.Point(7, 357);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(87, 13);
this.label1.TabIndex = 0;
this.label1.Text = "Original image";

this.label2.AutoSize = true;
this.label2.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(238)));
this.label2.Location = new System.Drawing.Point(348, 357);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(103, 13);
this.label2.TabIndex = 1;
this.label2.Text = "Processed image";

this.tb_blocksize.Location = new System.Drawing.Point(155, 13);
this.tb_blocksize.Name = "tb_blocksize";
this.tb_blocksize.Size = new System.Drawing.Size(87, 20);
this.tb_blocksize.TabIndex = 4;

this.tb_mindistance.Location = new System.Drawing.Point(155, 41);
this.tb_mindistance.Name = "tb_mindistance";
this.tb_mindistance.Size = new System.Drawing.Size(87, 20);
this.tb_mindistance.TabIndex = 5;

this.label5.AutoSize = true;
this.label5.Location = new System.Drawing.Point(6, 44);
this.label5.Name = "label5";
this.label5.Size = new System.Drawing.Size(93, 13);
this.label5.TabIndex = 12;
this.label5.Text = "Minimum Distance";

this.label4.AutoSize = true;
this.label4.Location = new System.Drawing.Point(6, 19);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(60, 13);
this.label4.TabIndex = 11;
this.label4.Text = "Block Size:";

this.groupBox2.Controls.Add(this.label5);
this.groupBox2.Controls.Add(this.tb_mindistance);
this.groupBox2.Controls.Add(this.btn_HighlightSet);
this.groupBox2.Controls.Add(this.label4);
this.groupBox2.Controls.Add(this.tb_blocksize);
this.groupBox2.Location = new System.Drawing.Point(351, 12);
this.groupBox2.Name = "groupBox2";
this.groupBox2.Size = new System.Drawing.Size(322, 89);
this.groupBox2.TabIndex = 13;
this.groupBox2.TabStop = false;
this.groupBox2.Text = "Settings";

this.btn_HighlightSet.Location = new System.Drawing.Point(258, 60);
this.btn_HighlightSet.Name = "btn_HighlightSet";
this.btn_HighlightSet.Size = new System.Drawing.Size(58, 23);
this.btn_HighlightSet.TabIndex = 19;
this.btn_HighlightSet.Text = "Set";
this.btn_HighlightSet.UseVisualStyleBackColor = true;
this.btn_HighlightSet.Click += new System.EventHandler(this.btn_HighlightSet_Click);

this.OriginalViewer.BackColor = System.Drawing.Color.Black;
this.OriginalViewer.FlipMode = Ozeki.Media.FlipMode.None;
this.OriginalViewer.FrameStretch = Ozeki.Media.FrameStretch.Uniform;
this.OriginalViewer.FullScreenEnabled = true;
this.OriginalViewer.Location = new System.Drawing.Point(10, 110);
this.OriginalViewer.Name = "OriginalViewer";
this.OriginalViewer.RotateAngle = 0;
this.OriginalViewer.Size = new System.Drawing.Size(330, 240);
this.OriginalViewer.TabIndex = 17;
this.OriginalViewer.Text = "videoViewerWF1";

this.ProcessedViewer.BackColor = System.Drawing.Color.Black;
this.ProcessedViewer.FlipMode = Ozeki.Media.FlipMode.None;
this.ProcessedViewer.FrameStretch = Ozeki.Media.FrameStretch.Uniform;
this.ProcessedViewer.FullScreenEnabled = true;
this.ProcessedViewer.Location = new System.Drawing.Point(351, 110);
this.ProcessedViewer.Name = "ProcessedViewer";
this.ProcessedViewer.RotateAngle = 0;
this.ProcessedViewer.Size = new System.Drawing.Size(320, 240);
this.ProcessedViewer.TabIndex = 18;
this.ProcessedViewer.Text = "videoViewerWF1";

this.groupBox5.Controls.Add(this.stateLabel);
this.groupBox5.Controls.Add(this.label14);
this.groupBox5.Controls.Add(this.button_Connect);
this.groupBox5.Controls.Add(this.button_Disconnect);
this.groupBox5.Controls.Add(this.tb_cameraUrl);
this.groupBox5.Controls.Add(this.label13);
this.groupBox5.Controls.Add(this.button_Compose);
this.groupBox5.Location = new System.Drawing.Point(12, 12);
this.groupBox5.Name = "groupBox5";
this.groupBox5.Size = new System.Drawing.Size(328, 89);
this.groupBox5.TabIndex = 21;
this.groupBox5.TabStop = false;
this.groupBox5.Text = "Connect";

this.stateLabel.AutoSize = true;
this.stateLabel.Location = new System.Drawing.Point(80, 72);
this.stateLabel.Name = "stateLabel";
this.stateLabel.Size = new System.Drawing.Size(0, 13);
this.stateLabel.TabIndex = 24;

this.label14.AutoSize = true;
this.label14.Location = new System.Drawing.Point(39, 72);
this.label14.Name = "label14";
this.label14.Size = new System.Drawing.Size(35, 13);
this.label14.TabIndex = 23;
this.label14.Text = "State:";

this.button_Connect.Enabled = false;
this.button_Connect.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(238)));
this.button_Connect.ForeColor = System.Drawing.Color.Black;
this.button_Connect.Location = new System.Drawing.Point(83, 39);
this.button_Connect.Name = "button_Connect";
this.button_Connect.Size = new System.Drawing.Size(69, 23);
this.button_Connect.TabIndex = 18;
this.button_Connect.Text = "Connect";
this.button_Connect.UseVisualStyleBackColor = true;
this.button_Connect.Click += new System.EventHandler(this.button_Connect_Click);

this.button_Disconnect.Enabled = false;
this.button_Disconnect.Location = new System.Drawing.Point(180, 39);
this.button_Disconnect.Name = "button_Disconnect";
this.button_Disconnect.Size = new System.Drawing.Size(69, 23);
this.button_Disconnect.TabIndex = 22;
this.button_Disconnect.Text = "Disconnect";
this.button_Disconnect.UseVisualStyleBackColor = true;
this.button_Disconnect.Click += new System.EventHandler(this.button_Disconnect_Click);

this.tb_cameraUrl.Location = new System.Drawing.Point(83, 13);
this.tb_cameraUrl.Name = "tb_cameraUrl";
this.tb_cameraUrl.ReadOnly = true;
this.tb_cameraUrl.Size = new System.Drawing.Size(166, 20);
this.tb_cameraUrl.TabIndex = 21;

this.label13.AutoSize = true;
this.label13.Location = new System.Drawing.Point(6, 16);
this.label13.Name = "label13";
this.label13.Size = new System.Drawing.Size(71, 13);
this.label13.TabIndex = 20;
this.label13.Text = "Camera URL:";

this.button_Compose.Location = new System.Drawing.Point(253, 11);
this.button_Compose.Name = "button_Compose";
this.button_Compose.Size = new System.Drawing.Size(69, 23);
this.button_Compose.TabIndex = 19;
this.button_Compose.Text = "Compose";
this.button_Compose.UseVisualStyleBackColor = true;
this.button_Compose.Click += new System.EventHandler(this.button_Compose_Click);

this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(686, 386);
this.Controls.Add(this.groupBox5);
this.Controls.Add(this.ProcessedViewer);
this.Controls.Add(this.OriginalViewer);
this.Controls.Add(this.groupBox2);
this.Controls.Add(this.label2);
this.Controls.Add(this.label1);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
this.MaximizeBox = false;
this.Name = "MainForm";
this.Text = "Corner Detection";
this.Load += new System.EventHandler(this.MainForm_Load);
this.groupBox2.ResumeLayout(false);
this.groupBox2.PerformLayout();
this.groupBox5.ResumeLayout(false);
this.groupBox5.PerformLayout();
this.ResumeLayout(false);
this.PerformLayout();
}

#endregion

private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.TextBox tb_blocksize;
private System.Windows.Forms.TextBox tb_mindistance;
private System.Windows.Forms.Label label5;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.GroupBox groupBox2;
private System.Windows.Forms.Button btn_HighlightSet;
private Ozeki.Media.VideoViewerWF OriginalViewer;
private Ozeki.Media.VideoViewerWF ProcessedViewer;
private System.Windows.Forms.GroupBox groupBox5;
private System.Windows.Forms.Button button_Connect;
private System.Windows.Forms.Button button_Disconnect;
private System.Windows.Forms.TextBox tb_cameraUrl;
private System.Windows.Forms.Label label13;
private System.Windows.Forms.Button button_Compose;
private System.Windows.Forms.Label stateLabel;
private System.Windows.Forms.Label label14;
}
}

Best Blog for C Sharp and Dot Net Lovers .

Wednesday, 29 November 2017

Implement corner detection in C#

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