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MotionDetector3.cs ( File view )

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			// Motion Detector
//
// Copyright  Andrew Kirillov, 2005-2006
// andrew.kirillov@gmail.com
//
namespace motion
{

	using System;
	using System.Drawing;
	using System.Drawing.Imaging;

	using AForge.Imaging;
	using AForge.Imaging.Filters;

	/// 
	/// MotionDetector3
	/// 
	public class MotionDetector3 : IMotionDetector
	{

		private IFilter	grayscaleFilter = new GrayscaleBT709( );
		private IFilter	pixellateFilter = new Pixellate( );
		private Difference differenceFilter = new Difference( );
		private Threshold thresholdFilter = new Threshold( 15 );
		private Dilatation dilatationFilter = new Dilatation( );
		private IFilter edgesFilter = new Edges( );
		private Merge mergeFilter = new Merge( );

		private IFilter extrachChannel = new ExtractChannel( RGB.R );
		private ReplaceChannel replaceChannel = new ReplaceChannel( RGB.R, null );
		private MoveTowards moveTowardsFilter = new MoveTowards( );

		private FiltersSequence	processingFilter1 = new FiltersSequence( );
		private FiltersSequence	processingFilter2 = new FiltersSequence( );

		private Bitmap	backgroundFrame;
        private BitmapData bitmapData;
        private int counter = 0;

		private bool	calculateMotionLevel = false;
		private int		width;	// image width
		private int		height;	// image height
		private int		pixelsChanged;

		// Motion level calculation - calculate or not motion level
		public bool MotionLevelCalculation
		{

			get {
 return calculateMotionLevel; 
}
			set {
 calculateMotionLevel = value; 
}
		
}

        public void SlideName(string slidename)
        {

            
        
}

		// Motion level - amount of changes in percents
		public double MotionLevel
		{

			get {
 return (double) pixelsChanged / ( width * height ); 
}
		
}

		// Constructor
		public MotionDetector3( )
		{

			processingFilter1.Add( grayscaleFilter );
			processingFilter1.Add( pixellateFilter );

			processingFilter2.Add( differenceFilter );
			processingFilter2.Add( thresholdFilter );
			processingFilter2.Add( dilatationFilter );
		
}

		// Reset detector to initial state
		public void Reset( )
		{

			if ( backgroundFrame != null )
			{

				backgroundFrame.Dispose( );
				backgroundFrame = null;
			
}
			counter = 0;
		
}

		// Process new frame
		public void ProcessFrame( ref Bitmap image )
		{

			if ( backgroundFrame == null )
			{

				// create initial backgroung image
				backgroundFrame = processingFilter1.Apply( image );

				// get image dimension
				width	= image.Width;
				height	= image.Height;

				// just return for the first time
				return;
			
}

			Bitmap tmpImage;

			// apply the the first filters sequence
			tmpImage = processingFilter1.Apply( image );

			if ( ++counter == 2 )
			{

				counter = 0;

				// move background towards current frame
				moveTowardsFilter.OverlayImage = tmpImage;
				moveTowardsFilter.ApplyInPlace( backgroundFrame );
			
}

			// set backgroud frame as an overlay for difference filter
			differenceFilter.OverlayImage = backgroundFrame;

            // lock temporary image to apply several filters
            bitmapData = tmpImage.LockBits( new Rectangle( 0, 0, width, height ),
                ImageLockMode.ReadWrite, PixelFormat.Format8bppIndexed );

            // apply difference filter
            differenceFilter.ApplyInPlace( bitmapData );
            // apply threshold filter
            thresholdFilter.ApplyInPlace( bitmapData );
            // apply dilatation filter
            Bitmap tmpImage2 = dilatationFilter.Apply( bitmapData );

            // unlock temporary image
            tmpImage.UnlockBits( bitmapData );
			tmpImage.Dispose( );

			// calculate amount of changed pixels
			pixelsChanged = ( calculateMotionLevel ) ?
				CalculateWhitePixels( tmpImage2 ) : 0;

			// find edges
			Bitmap tmpImage2b = edgesFilter.Apply( tmpImage2 );
			tmpImage2.Dispose( );

			// extract red channel from the original image
			Bitmap redChannel = extrachChannel.Apply( image );

			//  merge red channel with moving object borders
			mergeFilter.OverlayImage = tmpImage2b;
			Bitmap tmpImage3 = mergeFilter.Apply( redChannel );
			redChannel.Dispose( );
			tmpImage2b.Dispose( );

			// replace red channel in the original image
			replaceChannel.ChannelImage = tmpImage3;
			Bitmap tmpImage4 = replaceChannel.Apply( image );
			tmpImage3.Dispose( );

			image.Dispose( );
			image = tmpImage4;
		
}

		// Calculate white pixels
		private int CalculateWhitePixels( Bitmap image )
		{

			int count = 0;

			// lock difference image
			BitmapData data = image.LockBits( new Rectangle( 0, 0, width, height ),
				ImageLockMode.ReadOnly, PixelFormat.Format8bppIndexed );

			int offset = data.Stride - width;

			unsafe
			{

				byte * ptr = (byte *) data.Scan0.ToPointer( );

				for ( int y = 0; y < height; y++ )
				{

					for ( int x = 0; x < width; x++, ptr++ )
					{

						count += ( (*ptr) >> 7 );
					
}
					ptr += offset;
				
}
			
}
			// unlock image
			image.UnlockBits( data );

			return count;
		
}
	
}

}
			
...
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01.96 kB
01.96 kB
AssemblyInfo.cs2.37 kB2006-04-11 11:57
01.96 kB
01.96 kB
dshow.dll32.00 kB2007-06-13 21:51
dshow.pdb25.50 kB2007-06-13 21:51
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dshow.dll32.00 kB2007-06-07 20:26
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1.txt45.00 B2006-04-11 11:57
IBaseFilter.cs2.14 kB2006-04-11 11:57
IBasicVideo.cs4.70 kB2006-04-11 11:57
ICreateDevEnum.cs592.00 B2006-04-11 11:57
IEnumPins.cs831.00 B2006-04-11 11:57
IFileSourceFilter.cs861.00 B2006-04-11 11:57
IFilterGraph.cs1.58 kB2006-04-11 11:57
IGraphBuilder.cs2.84 kB2006-04-11 11:57
IMediaControl.cs1.49 kB2006-04-11 11:57
IMediaEvent.cs3.06 kB2006-04-11 11:57
IMediaPosition.cs1.88 kB2006-04-11 11:57
IMediaSeeking.cs2.79 kB2006-04-11 11:57
IPin.cs2.36 kB2006-04-11 11:57
IPropertyBag.cs853.00 B2006-04-11 11:57
ISampleGrabber.cs2.21 kB2006-04-11 11:57
IVideoFrameStep.cs747.00 B2006-04-11 11:57
IVideoWindow.cs5.90 kB2006-04-11 11:57
Structures.cs4.37 kB2006-04-11 11:57
Uuids.cs4.87 kB2006-04-11 11:57
Win32.cs919.00 B2006-04-11 11:57
dshow.csproj5.38 kB2007-03-16 20:38
Filter.cs2.57 kB2006-04-11 11:57
FilterCollection.cs2.14 kB2006-04-11 11:57
01.96 kB
01.96 kB
dshow.dll32.00 kB2007-06-13 21:51
dshow.pdb25.50 kB2007-06-13 21:51
01.96 kB
dshow.csproj.FileList.txt216.00 B2007-06-15 15:17
01.96 kB
dshow.dll32.00 kB2007-06-07 20:26
01.96 kB
dshow.dll28.00 kB2007-06-07 18:09
01.96 kB
Tools.cs1.11 kB2006-04-11 11:57
motion.sln1.79 kB2007-03-16 20:38
motion.suo35.00 kB2007-06-15 15:08
01.96 kB
AboutForm.cs11.91 kB2007-06-15 15:17
AboutForm.resx9.77 kB2007-06-15 15:17
App.ico26.07 kB2006-04-11 11:57
AssemblyInfo.cs2.47 kB2007-03-20 08:40
01.96 kB
01.96 kB
AForge.dll20.00 kB2007-03-16 19:54
AForge.Imaging.dll108.00 kB2007-03-19 18:42
AForge.Math.dll28.00 kB2007-03-16 19:54
App.ico26.07 kB2006-04-11 11:57
dshow.dll32.00 kB2007-06-13 21:51
dshow.pdb25.50 kB2007-06-13 21:51
motion.exe132.00 kB2007-06-15 15:17
motion.exe.config147.00 B2007-03-19 09:20
motion.pdb181.50 kB2007-06-15 15:17
motion.vshost.exe5.50 kB2005-09-23 07:56
motion.vshost.exe.config147.00 B2007-03-19 09:20
Tiger.Video.VFW.dll24.00 kB2007-06-13 21:51
Tiger.Video.VFW.pdb27.50 kB2007-06-13 21:51
01.96 kB
AForge.dll20.00 kB2007-03-16 19:54
AForge.Imaging.dll108.00 kB2007-03-19 18:42
AForge.Math.dll28.00 kB2007-03-16 19:54
dshow.dll32.00 kB2007-06-07 20:26
motion.exe124.00 kB2007-06-07 20:40
motion.exe.config147.00 B2007-03-19 09:20
motion.vshost.exe5.50 kB2005-09-23 07:56
motion.vshost.exe.config147.00 B2007-03-19 09:20
Tiger.Video.VFW.dll24.00 kB2007-06-07 20:26
Camera.cs3.47 kB2006-04-11 11:57
CameraWindow.cs5.17 kB2006-04-11 11:57
CameraWindow.resx5.55 kB2006-04-11 11:57
CaptureDeviceForm.cs4.49 kB2007-06-15 15:17
CaptureDeviceForm.resx5.37 kB2006-04-11 11:57
ClassDiagram1.cd1.00 B2007-06-07 18:39
Copyright.txt913.00 B2007-06-15 15:17
IMotionDetector.cs785.00 B2007-06-07 20:36
MainForm.cs21.34 kB2007-06-13 21:54
MainForm.resx45.81 kB2007-06-13 21:51
motion.csproj7.33 kB2007-06-07 18:45
MotionDetector1.cs9.95 kB2007-06-07 20:37
MotionDetector2.cs4.44 kB2007-06-07 20:38
MotionDetector3.cs5.06 kB2007-06-07 20:38
MotionDetector3Optimized.cs6.57 kB2007-06-07 20:38
MotionDetector4.cs4.89 kB2007-06-07 20:38
01.96 kB
01.96 kB
motion.AboutForm.resources3.00 kB2007-06-15 15:17
motion.CameraWindow.resources581.00 B2007-06-13 21:51
motion.CaptureDeviceForm.resources279.00 B2007-06-13 21:51
motion.csproj.GenerateResource.Cache1.00 kB2007-06-15 15:17
motion.exe132.00 kB2007-06-15 15:17
motion.MainForm.resources26.62 kB2007-06-13 21:51
motion.pdb181.50 kB2007-06-15 15:17
motion.Resources.1.gif828.00 B2006-04-11 11:57
motion.Resources.2.gif822.00 B2006-04-11 11:57
motion.Resources.3.gif830.00 B2006-04-11 11:57
motion.Resources.4.gif822.00 B2006-04-11 11:57
motion.Resources.5.gif822.00 B2006-04-11 11:57
motion.Resources.6.gif830.00 B2006-04-11 11:57
motion.Resources.7.gif821.00 B2006-04-11 11:57
motion.Resources.8.gif822.00 B2006-04-11 11:57
motion.Resources.9.gif822.00 B2006-04-11 11:57
motion.URLForm.resources269.00 B2007-06-13 21:51
ResolveAssemblyReference.cache13.42 kB2007-06-15 14:58
01.96 kB
motion.csproj.FileList.txt1.64 kB2007-06-15 15:17
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motion.AboutForm.resources3.00 kB2007-06-07 20:26
motion.CameraWindow.resources581.00 B2007-06-07 20:26
motion.CaptureDeviceForm.resources279.00 B2007-06-07 20:26
motion.csproj.GenerateResource.Cache1.00 kB2007-06-07 20:27
motion.exe124.00 kB2007-06-07 20:40
motion.MainForm.resources26.62 kB2007-06-07 20:27
motion.Resources.1.gif828.00 B2006-04-11 11:57
motion.Resources.2.gif822.00 B2006-04-11 11:57
motion.Resources.3.gif830.00 B2006-04-11 11:57
motion.Resources.4.gif822.00 B2006-04-11 11:57
motion.Resources.5.gif822.00 B2006-04-11 11:57
motion.Resources.6.gif830.00 B2006-04-11 11:57
motion.Resources.7.gif821.00 B2006-04-11 11:57
motion.Resources.8.gif822.00 B2006-04-11 11:57
motion.Resources.9.gif822.00 B2006-04-11 11:57
motion.URLForm.resources269.00 B2007-06-07 20:26
01.96 kB
ResolveAssemblyReference.cache10.44 kB2007-06-07 20:26
01.96 kB
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1.gif828.00 B2006-04-11 11:57
2.gif822.00 B2006-04-11 11:57
3.gif830.00 B2006-04-11 11:57
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8.gif822.00 B2006-04-11 11:57
9.gif822.00 B2006-04-11 11:57
UnsafeBitmap.cs2.76 kB2007-06-15 14:58
URLForm.cs3.98 kB2006-04-11 11:57
URLForm.resx5.36 kB2006-04-11 11:57
01.96 kB
ByteArrayUtils.cs1.25 kB2006-04-11 11:57
CameraEvents.cs626.00 B2006-04-11 11:57
CaptureDevice.cs8.15 kB2006-04-11 11:57
IVideoSource.cs1.57 kB2006-04-11 11:57
JPEGStream.cs6.89 kB2006-04-11 11:57
MJPEGStream.cs9.12 kB2006-04-11 11:57
VideoFileSource.cs3.45 kB2006-04-11 11:57
VideoStream.cs8.47 kB2006-04-11 11:57
01.96 kB
AForge.dll20.00 kB2007-03-16 19:54
AForge.Imaging.dll108.00 kB2007-03-19 18:42
AForge.Math.dll28.00 kB2007-03-16 19:54
01.96 kB
AssemblyInfo.cs2.37 kB2006-04-11 11:57
AVIReader.cs5.29 kB2006-04-11 11:57
AVIWriter.cs5.59 kB2006-04-11 11:57
01.96 kB
01.96 kB
Tiger.Video.VFW.dll24.00 kB2007-06-13 21:51
Tiger.Video.VFW.pdb27.50 kB2007-06-13 21:51
01.96 kB
Tiger.Video.VFW.dll24.00 kB2007-06-07 20:26
01.96 kB
01.96 kB
01.96 kB
Tiger.Video.VFW.dll24.00 kB2007-06-13 21:51
Tiger.Video.VFW.pdb27.50 kB2007-06-13 21:51
01.96 kB
01.96 kB
Tiger.Video.VFW.dll20.00 kB2007-06-07 18:09
01.96 kB
Tiger.Video.VFW.dll24.00 kB2007-06-07 20:26
vfw.csproj.FileList.txt276.00 B2007-06-15 15:17
vfw.csproj3.55 kB2007-03-16 20:38
Win32.cs9.81 kB2006-04-11 11:57
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