/// <summary>
/// Produces an image in the ring buffer
/// </summary>
/// <param name="image">The image to write into the buffer</param>
public void Produce(Image8 image)
{
if (_isDisposed)
{
throw new ObjectDisposedException("PrCoImageRingBuffer");
}
if (image == null)
{
return;
}
if (image.Width != _imageWidth || image.Height != _imageHeight)
{
throw new ArgumentException("The produced image is not compatible with the buffer");
}
lock (_accessLock)
{
//advance our production buffer "pointer" to the next place in the ring buffer
_lastProduce = (_lastProduce + 1) % _nImages;
//increment _imageIndex internally
var temp = _imageIndex + 1;
//copy image over
ip.ippiCopy_8u_C1R(image.Image, image.Stride, _buffers[_lastProduce], _imageStride, new IppiSize(_imageWidth, _imageHeight));
//update the indices in the production place with the current image index
_imageIndices[_lastProduce] = temp;
//Image has been produced, update index and storage counter
_imageIndex = temp;
_storageCount++;
//Signal waiting threads that we are about to release the lock
Monitor.Pulse(_accessLock);
}
}
public void WriteFrame(Image8 frame)
{
//if this is the first frame of the current file
//we have to create the file
if (_firstFrame)
{
System.Diagnostics.Debug.Assert(_tiffFile == null, "Tried first write but tiffile not null");
_pageIndex = 0;
_tiffFile = Tiff.Open(CurrentFileNameWithExtension, "w");
//write first page
WritePage(frame);
//increment page index
_pageIndex++;
_firstFrame = false;
}
else
{
//TiffStream stream = _tiffFile.GetStream();
if (new FileInfo(CurrentFileNameWithExtension).Length > 1900000000)//limit file size for MATLABs sake
{
_fileIndex++;
_firstFrame = true;
_tiffFile.Dispose();
_tiffFile = null;
WriteFrame(frame);
return;
}//if file size maxed out
//write next page
WritePage(frame);
//increment page index
_pageIndex++;
}
}
protected virtual void Dispose(bool disposing)
{
if (_bgModel != null)
{
_bgModel.Dispose();
_bgModel = null;
}
if (_calc != null)
{
_calc.Dispose();
_calc = null;
}
if (_foreground != null)
{
_foreground.Dispose();
_foreground = null;
}
if (_markerBuffer != null)
{
Marshal.FreeHGlobal((IntPtr)_markerBuffer);
_markerBuffer = null;
}
if (_momentState != null)
{
ip.ippiMomentFree_64s(_momentState);
_momentState = null;
}
}
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (disposing)
{
if (_trackWriter != null)
{
_trackWriter.Dispose();
_trackWriter = null;
}
if (_imageWriter != null)
{
_imageWriter.Dispose();
_imageWriter = null;
}
if (_backgroundWriter != null)
{
_backgroundWriter.Dispose();
_backgroundWriter = null;
}
if (_laser != null)
{
_laser.Dispose();
}
if (_scanner != null)
{
_scanner.Dispose();
}
if (_camRegion != null)
{
_camRegion.Dispose();
_camRegion = null;
}
}
}
public Replay(Queue <string> originalTrackData, Queue <string> originalInfoData, OriginalType originalType, int originalLength, int frameRate, int pxPERmm, string folder, string name, string fishID) :
base(folder, name, fishID, originalLength, frameRate, pxPERmm)
{
if (FileSaver != null)
{
_trackWriter = FileSaver.GetStreamWriter(".track");
_imageWriter = FileSaver.GetTiffWriter("_camImage.tif", true);
_backgroundWriter = FileSaver.GetTiffWriter("_bgImage.tif", true);
//Create 10x10 mm region image
_camRegion = new Image8(Properties.Settings.Default.PixelsPermm * 10, Properties.Settings.Default.PixelsPermm * 10);
}
_laser = new SDLPS500Controller(Properties.Settings.Default.DAQ, Properties.Settings.Default.LaserAO);
string xchannel = Properties.Settings.Default.DAQ + "/" + Properties.Settings.Default.ScannerX;
string ychannel = Properties.Settings.Default.DAQ + "/" + Properties.Settings.Default.ScannerY;
//Load scan lookup table from file
try
{
TextReader reader = File.OpenText("main.calib");
var scanTable = BLIScanLookupTable.LoadFromFile(reader);
_scanner = new RandomAccessScanner(scanTable, xchannel, ychannel, -10, 10);
reader.Dispose();
}
catch (IOException)
{
System.Diagnostics.Debug.WriteLine("Could not find calibration data. No targeting available");
}
//This is a closed-loop experiment - try to stay fully up-to-date
SuggestedBufferSeconds = 0;
_originalType = originalType;
_originalTrackData = originalTrackData;
_originalInfoData = originalInfoData;
_experimentPhase = ExperimentPhase.Replay;
}
/// <summary>
/// Safely copies region around given centroid
/// </summary>
/// <param name="centroid">The centroid around which image region should be copied</param>
/// <param name="regionImage">The target of the copy</param>
/// <param name="image">The source of the copy operation</param>
public static void CopyRegionImage(IppiPoint centroid, Image8 regionImage, Image8 image)
{
IppiPoint copyStart = new IppiPoint(centroid.x - regionImage.Width / 2, centroid.y - regionImage.Height / 2);
int destX = 0;
int destY = 0;
if (copyStart.x < 0)
{
destX -= copyStart.x;
copyStart.x = 0;
}
if (copyStart.y < 0)
{
destY -= copyStart.y;
copyStart.y = 0;
}
IppiSize copySize = new IppiSize(regionImage.Width - destX, regionImage.Height - destY);
if (copyStart.x + copySize.width > image.Width)
{
copySize.width = image.Width - copyStart.x;
}
if (copyStart.y + copySize.height > image.Height)
{
copySize.height = image.Height - copyStart.y;
}
if (copySize.width > 0 && copySize.height > 0)
{
ip.ippiCopy_8u_C1R(image[copyStart], image.Stride, regionImage[destX, destY], regionImage.Stride, copySize);
}
}
/// <summary>
/// Extract blobs from an image in which distinct contiguous regions are marked
/// with distinct pixel values such as returned by ippiLabelMarkers
/// </summary>
/// <param name="imMarkers">The marker image</param>
/// <param name="nMarkers">The number of expected markers</param>
/// <param name="imOriginal">The original image. Used for pixel-intensity information</param>
/// <param name="roi">The roi in which to perform blob extraction</param>
/// <returns>An array of discovered blobs</returns>
public static BlobWithMoments[] ExtractBlobs(Image8 imMarkers, int nMarkers, IppiROI roi)
{
if (nMarkers == 0)//no point to iterate over the image if no marker was found
{
return(null);
}
BlobWithMoments[] blobs = new BlobWithMoments[nMarkers];
byte markerValue;
//loop over ROI in marker image, adding pixels to their appropriate blob
for (int i = roi.Y; i < roi.Y + roi.Height; i++)
{
for (int j = roi.X; j < roi.X + roi.Width; j++)
{
markerValue = imMarkers.Image[i * imMarkers.Stride + j];
if (markerValue != 0) //it belongs to a blob!
{
//since the lowest marker has the value 1 we need to deduct 1 from markerValue for 0-index based array mapping!
if (blobs[markerValue - 1] == null)
{
blobs[markerValue - 1] = new BlobWithMoments();
}
blobs[markerValue - 1].AddPixel(j, i);
}
}
}
return(blobs);
}
///// <summary>
///// Computes the augmented rotation matrix for an augmented 2D point around the origin
///// </summary>
///// <param name="theta">The clockwise rotation angle in radians</param>
///// <returns>The augmented (3x3) 2D rotation matrix</returns>
//public static Matrix<double> RotationMatrix(double theta)
//{
// return DenseMatrix.OfArray(new double[,]
// {
// {Math.Cos(theta), Math.Sin(theta), 0 },
// {-1*Math.Sin(theta), Math.Cos(theta), 0 },
// {0, 0, 1 }
// });
//}
///// <summary>
///// Computes the augmented translation matrix for an augmented 2D point
///// </summary>
///// <param name="dx">Translation amount in x direction</param>
///// <param name="dy">Translation amount in y direction</param>
///// <returns>The augmented (3x3) 2D translation matrix</returns>
//public static Matrix<double> TranslationMatrix(double dx, double dy)
//{
// return DenseMatrix.OfArray(new double[,]
// {
// {1, 0, dx },
// {0, 1, dy },
// {0, 0, 1 }
// });
//}
///// <summary>
///// Augments a 2D coordinate point
///// </summary>
///// <param name="px">The x-coordinate</param>
///// <param name="py">The y-coordinate</param>
///// <returns>A 3 element vector comprising the point</returns>
//public static Vector<double> Augment2DCoordinate(double px, double py)
//{
// return DenseVector.OfArray(new double[] { px, py, 1 });
//}
///// <summary>
///// Composes (multiplies) a list of transformation matrices in order
///// NOTE: List should be ordered in order of application which needs to be reversed for the composition!
///// </summary>
///// <param name="matrices">List of transformations to compose</param>
///// <returns>The composed matrix</returns>
//public static Matrix<double> Compose(List<Matrix<double>> matrices)
//{
// Matrix<double> m = DenseMatrix.CreateIdentity(3);
// for(int i = matrices.Count-1; i>=0; i--)
// m *= matrices[i];
// return m;
//}
///// <summary>
///// Applies transformation to given point
///// </summary>
///// <param name="p"></param>
///// <param name="T"></param>
///// <returns></returns>
//public static IppiPoint TransformPoint(IppiPoint p, Matrix<double> T)
//{
// Vector<double> result = Augment2DCoordinate(p.x, p.y) * T;
// return new IppiPoint((int)result[0], (int)result[1]);
//}
///// <summary>
///// Applies transformation to given point
///// </summary>
///// <param name="p"></param>
///// <param name="T"></param>
///// <returns></returns>
//public static IppiPoint_32f TransformPoint(IppiPoint_32f p, Matrix<double> T)
//{
// Vector<double> result = T * Augment2DCoordinate(p.x, p.y);
// return new IppiPoint_32f((float)result[0], (float)result[1]);
//}
/// <summary>
/// Method for creating image background
/// </summary>
/// <param name="frameNumber">The current camera frame number</param>
/// <param name="camImage">The camera image</param>
/// <param name="poi">A detected centroid (all null)</param>
protected void BuildBackground(int frameNumber, Image8 camImage, out IppiPoint?poi)
{
_laser.LaserPower = 0;
poi = null;
if (frameNumber == 0 || _bgModel == null)
{
_bgModel = new DynamicBackgroundModel(camImage, 1.0f / Properties.Settings.Default.FrameRate);
_fgModel = new DynamicBackgroundModel(camImage, 5.0f / Properties.Settings.Default.FrameRate);
//Create image intermediates
_calc = new Image8(camImage.Size);
_foreground = new Image8(camImage.Size);
_strel3x3 = Morphology.Generate3x3Mask(camImage.Size);
//Initialize buffer for label markers
int bufferSize = 0;
cv.ippiLabelMarkersGetBufferSize_8u_C1R(camImage.Size, &bufferSize);
if (_markerBuffer != null)
{
Marshal.FreeHGlobal((IntPtr)_markerBuffer);
_markerBuffer = null;
}
_markerBuffer = (byte *)Marshal.AllocHGlobal(bufferSize);
}
else
{
_bgModel.UpdateBackground(camImage);
}
if (frameNumber >= Properties.Settings.Default.FrameRate * 5)
{
_experimentPhase = ExperimentPhases.ThreePoint;
_threePointFrame = 0;
_threePointPoints = new CalibrationPoints();
}
}
public Tracker90mmDish(int imageWidth, int imageHeight, IppiPoint dishCenter)
{
_foreground = new Image8(imageWidth, imageHeight);
_bgSubtracted = new Image8(imageWidth, imageHeight);
_calc = new Image8(imageWidth, imageHeight);
_dishCenter = dishCenter;
int bufferSize = 0;
IppHelper.IppCheckCall(cv.ippiLabelMarkersGetBufferSize_8u_C1R(new IppiSize(imageWidth, imageHeight), &bufferSize));
_markerBuffer = (byte *)Marshal.AllocHGlobal(bufferSize);
int momentSize = 0;
IppHelper.IppCheckCall(ip.ippiMomentGetStateSize_64f(IppHintAlgorithm.ippAlgHintNone, &momentSize));
_momentState = (IppiMomentState_64f *)Marshal.AllocHGlobal(momentSize);
//let ipp decide whether to give accurate or fast results
IppHelper.IppCheckCall(ip.ippiMomentInit_64f(_momentState, IppHintAlgorithm.ippAlgHintNone));
_frame = 0;
//populate tracking parameters with default values
_threshold = 6;
_minArea = 11;
_maxAllowedArea = 120;
_minEccentricity = 0.3;
_fullTrustMinArea = 20;
_imageROI = new IppiROI(0, 0, imageWidth, imageHeight);
_searchRegionSize = 90;
_removeCMOSISBrightLineArtefact = false;
_strel3x3 = Morphology.Generate3x3Mask(_foreground.Size);
//The following calculation for FramesInBackground means that after ~30s of movie
//a stationary object will have dissappeared into the background (at 63% level)
FramesInBackground = (int)((30 * 250));
FramesInitialBackground = 2 * 30 * 250;
BGUpdateEvery = 2;
}
/// <summary>
/// Extracts an 8-bit image reducing bit depth if necessary
/// </summary>
/// <param name="imageOut">The container to recieve the image</param>
/// <param name="requestedFrame">The framenumber to request</param>
/// <returns>The frame number actually retrieved from the buffer</returns>
public uint Extract(Image8 imageOut, uint requestedFrame)
{
uint frameActual, indexActual;
if (_bytesPerPixel == 2)
{
//this requires acquisition into our internal buffer first
//followed by handing out a downsized copy
frameActual = Extract(_imgDownsize, requestedFrame);
//if our bit-depth is not 16 we have a problem - we need
//to scale our image first to really fill the 16bits otherwise we run into
//problems later...
if (_bitsPerPixel < 16)
{
ip.ippiMulC_16u_C1IRSfs(_scaleFactor, _imgDownsize.Image, _imgDownsize.Stride, _imgDownsize.Size, 0);
}
//we got handed 8 bits
_imgDownsize.ReduceTo8U(imageOut);
}
else
{
NIImaq.CheckError(NIImaq.imgSessionCopyBufferByNumber(_sid, requestedFrame, (IntPtr)imageOut.Image, IMG_OVERWRITE_MODE.IMG_OVERWRITE_GET_NEWEST, out frameActual, out indexActual));
if (frameActual != requestedFrame)
{
System.Diagnostics.Debug.WriteLine("Requested frame {0}; obtained frame {1}", requestedFrame, frameActual);
}
}
_acquiredFrames++;
return(frameActual);
}
protected void Dispose(bool IsDisposing)
{
if (_background != null)
{
_background.Dispose();
_background = null;
}
if (_foreground != null)
{
_foreground.Dispose();
_foreground = null;
}
if (_thresholded != null)
{
_thresholded.Dispose();
_thresholded = null;
}
if (_calc1 != null)
{
_calc1.Dispose();
_calc1 = null;
}
if (_strel != null)
{
_strel.Dispose();
_strel = null;
}
if (_angleStore != null)
{
System.Runtime.InteropServices.Marshal.FreeHGlobal((IntPtr)_angleStore);
_angleStore = null;
}
}
public Tracker90mmDish(int imageWidth, int imageHeight)
{
_foreground = new Image8(imageWidth, imageHeight);
_calc = new Image8(imageWidth, imageHeight);
_labelMarkers = new Image8(imageWidth, imageHeight);
int bufferSize = 0;
IppHelper.IppCheckCall(cv.ippiLabelMarkersGetBufferSize_8u_C1R(new IppiSize(imageWidth, imageHeight), &bufferSize));
_markerBuffer = (byte *)Marshal.AllocHGlobal(bufferSize);
fixed(IppiMomentState_64s **ppState = &_momentState)
{
//let ipp decide whether to give accurate or fast results
IppHelper.IppCheckCall(ip.ippiMomentInitAlloc_64s(ppState, IppHintAlgorithm.ippAlgHintNone));
}
_frame = 0;
//populate tracking parameters with default values
_threshold = 5;
_minArea = 10;
_maxArea = 300;
_fullTrustMinArea = 20;
_imageROI = new IppiROI(0, 0, imageWidth, imageHeight);
//The following calculation for FramesInBackground means that after ~30s of movie
//a stationary object will have dissappeared into the background (at 63% level)
FramesInBackground = (int)((30 * 240));
FramesInitialBackground = 2 * FramesInBackground;
}
public Image8 copy()
{
global::System.IntPtr cPtr = libPhotoAssistantImageProcessingPINVOKE.Image8_copy(swigCPtr);
Image8 ret = (cPtr == global::System.IntPtr.Zero) ? null : new Image8(cPtr, false);
return(ret);
}
/// <summary>
/// Generates a circular mask to use in morphological operations
/// with the anchor in the center
/// </summary>
/// <param name="radius">The radius of the mask as maximum distance from center pixel (i.e. radius=0 would be 1-pixel mask)</param>
/// <returns>The mask</returns>
public static MorphologyMask GenerateDiskMask(int radius)
{
if (radius < 1)
{
throw new ArgumentOutOfRangeException("radius");
}
//Masks in ipps morphological functions don't really allow for stride
//unless it is guaranteed, that the pixels within the stride are of value0
//therefore we generate the mask with the minimum possible width and height
//that is dividable by 4
int diameter = 1 + 2 * radius;//center pixel is extra
int imageWidth = (int)(Math.Ceiling(diameter / 4.0) * 4);
IppiPoint center = new IppiPoint(radius, radius);
Image8 mask = new Image8(imageWidth, diameter);
//Set all pixels to 0
IppHelper.IppCheckCall(ip.ippiSet_8u_C1R(0, mask.Image, mask.Stride, mask.Size));
//Loop over pixels, check distance and set to 1 if within circle
for (int x = 0; x < mask.Width; x++)
{
for (int y = 0; y < mask.Width; y++)
{
if (Distance.Euclidian(new IppiPoint(x, y), center) <= radius)
{
*mask[x, y] = 1;
}
}
}
//default anchor is in the circle's center
return(new MorphologyMask(mask, center));
}
/// <summary>
/// Initializes a new tracker instance
/// </summary>
/// <param name="imageWidth">The width of the images to track</param>
/// <param name="imageHeight">The height of the images to track</param>
public Tracker(int imageWidth, int imageHeight)
{
_currentImage = new Image8(imageWidth, imageHeight);
_trackThread = new Worker(TrackThreadRun, false, 500);
_frames = new PrCoImageRingBuffer(imageWidth, imageHeight, 100);
_imageIndex = 0;
}
/// <summary>
/// Finds the location of the laser beam in the camera image
/// </summary>
/// <param name="image">The current image in which to find the beam</param>
/// <param name="background">The calculated background image</param>
/// <param name="calc">Image buffer for intermediate calculations</param>
/// <param name="foreground">Image buffer for foreground extraction</param>
/// <returns></returns>
private IppiPoint FindBeamLocation(Image8 image, Image8 background, Image8 calc, Image8 foreground)
{
IppiSize imageSize = new IppiSize(image.Width, image.Height);
//Clear foreground and calc
ip.ippiSet_8u_C1R(0, foreground.Image, foreground.Stride, imageSize);
ip.ippiSet_8u_C1R(0, calc.Image, calc.Stride, imageSize);
//Perform background subtraction
cv.ippiAbsDiff_8u_C1R(image.Image, image.Stride, background.Image, background.Stride, calc.Image, calc.Stride, imageSize);
//remove noise via 3x3 median filtering
ip.ippiFilterMedianWeightedCenter3x3_8u_C1R(calc[2, 2], calc.Stride, foreground[2, 2], foreground.Stride, new IppiSize(image.Width - 4, image.Height - 4), 1);
//threshold difference
ip.ippiThreshold_LTVal_8u_C1IR(foreground.Image, foreground.Stride, imageSize, 111, 0);
ip.ippiThreshold_GTVal_8u_C1IR(foreground.Image, foreground.Stride, imageSize, 110, 255);
//perform closing operation - 2 step to put result back into foreground
_strel3x3.Dilate(foreground, calc, imageSize);
_strel3x3.Erode(calc, foreground, imageSize);
//feature extraction
int nMarkers = 0;
cv.ippiLabelMarkers_8u_C1IR(foreground.Image, foreground.Stride, imageSize, 1, 254, IppiNorm.ippiNormInf, &nMarkers, _markerBuffer);
BlobWithMoments[] blobsDetected = BlobWithMoments.ExtractBlobs(foreground, nMarkers, new IppiROI(0, 0, image.Width, image.Height));
//re-threshold foreground for display
ip.ippiThreshold_LTVal_8u_C1IR(foreground.Image, foreground.Stride, imageSize, 1, 0); //6
ip.ippiThreshold_GTVal_8u_C1IR(foreground.Image, foreground.Stride, imageSize, 0, 255); //5
long maxArea = 0;
int maxIndex = -1;
if (blobsDetected != null)
{
for (int i = 0; i < blobsDetected.Length; i++)
{
if (blobsDetected[i] == null)
{
break;
}
//Simply note down the largest blob
if (blobsDetected[i].Area > maxArea)
{
maxArea = blobsDetected[i].Area;
maxIndex = i;
}
}
// System.Diagnostics.Debug.WriteLine("Area: {0}", blobsDetected[maxIndex].Area);
// System.Diagnostics.Debug.WriteLine("Eccentricity: {0}", blobsDetected[maxIndex].Eccentricity);
if (maxArea > 30)
{
return(blobsDetected[maxIndex].Centroid);
}
else
{
return(new IppiPoint(-1, -1));
}
}
else
{
return(new IppiPoint(-1, -1));
}
}
/// <summary>
/// Multiplies the mask with the image effectively removing
/// parts outside the mask
/// </summary>
/// <param name="image">The image to mask</param>
public void MaskImage(Image8 image)
{
if (!_maskValid)
{
GenerateMask();
}
IppHelper.IppCheckCall(ip.ippiMul_8u_C1IRSfs(_mask.Image, _mask.Stride, image.Image, image.Stride, image.Size, 0));
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="im">The initial background image</param>
/// <param name="fUpdate">The fraction of the current image to use for updating the background</param>
public DynamicBackgroundModel(Image8 im, float fUpdate) : base(im)
{
if (0 > fUpdate || 1 < fUpdate)
{
throw new ArgumentOutOfRangeException("fUpdate", "The update fraction has to be bigger than 0 and smaller than 1");
}
FractionUpdate = fUpdate;
}
public override void UpdateBackground(Image8 im)
{
if (im.Width != width || im.Height != height)
{
throw new ArgumentException("The supplied image must have the same dimensions as the background");
}
IppHelper.IppCheckCall(cv.ippiAddWeighted_8u32f_C1IR(im.Image, im.Stride, background.Image, background.Stride, im.Size, FractionUpdate));
}
/// <summary>
/// Disposes the mask image
/// </summary>
public void Dispose()
{
if (_mask != null)
{
_mask.Dispose();
_mask = null;
}
}
/// <summary>
/// Performs an opening operation in the specified ROI using the specified
/// neighborhood mask
/// </summary>
/// <param name="imIn">The image to perform the opening operation on</param>
/// <param name="imOpened">The image after the opening operation</param>
/// <param name="imCalc">Intermediate buffer for processing</param>
/// <param name="neighborhood">The mask for the opening operation</param>
/// <param name="region">The image region in which to perform the operation</param>
public static void Open(Image8 imIn, Image8 imOpened, Image8 imCalc, MorphologyMask neighborhood, IppiROI roi)
{
//Modify region we operate on to allow mask overhang
var inner = new IppiROI(roi.X + neighborhood.Anchor.x, roi.Y + neighborhood.Anchor.y, roi.Width - neighborhood.Mask.Width, roi.Height - neighborhood.Mask.Height);
IppHelper.IppCheckCall(ip.ippiErode_8u_C1R(imIn[inner.TopLeft], imIn.Stride, imCalc[inner.TopLeft], imCalc.Stride, inner.Size, neighborhood.Mask.Image, neighborhood.Mask.Size, neighborhood.Anchor));
IppHelper.IppCheckCall(ip.ippiDilate_8u_C1R(imCalc[inner.TopLeft], imCalc.Stride, imOpened[inner.TopLeft], imOpened.Stride, inner.Size, neighborhood.Mask.Image, neighborhood.Mask.Size, neighborhood.Anchor));
}
/// <summary>
/// Uses multiplication to draw a mask onto an image
/// </summary>
/// <param name="maskImage">The mask image to draw</param>
/// <param name="image">The camera image to draw the mask on</param>
public static void DrawMask(Image8 maskImage, Image8 image)
{
if (maskImage.Size.width != image.Size.width || maskImage.Size.height != image.Size.height)
{
throw new ArgumentException("Both images need to have the same dimensions");
}
ip.ippiMul_8u_C1IRSfs(maskImage.Image, maskImage.Stride, image.Image, image.Stride, image.Size, 0);
}
/// <summary>
/// Performs a 3x3 opening operation on an image - removes speckles
/// </summary>
/// <param name="imIn">The image to perform an opening operation on</param>
/// <param name="imOpened">The image after the opening operation</param>
/// <param name="imCalc">Intermediate image for semi-processed version</param>
/// <param name="region">The ROI in which to perform the operation</param>
public static void Open3x3(Image8 imIn, Image8 imOpened, Image8 imCalc, IppiROI roi)
{
//Modify region we operate on to allow mask overhang
var inner = new IppiROI(roi.X + 1, roi.Y + 1, roi.Width - 3, roi.Height - 3);
IppHelper.IppCheckCall(ip.ippiErode3x3_8u_C1R(imIn[inner.TopLeft], imIn.Stride, imCalc[inner.TopLeft], imCalc.Stride, inner.Size));
IppHelper.IppCheckCall(ip.ippiDilate3x3_8u_C1R(imCalc[inner.TopLeft], imCalc.Stride, imOpened[inner.TopLeft], imOpened.Stride, inner.Size));
}
public void Dispose()
{
if (_mask != null)
{
_mask.Dispose();
_mask = null;
}
IsDisposed = true;
}
/// <summary>
/// Process the next frame
/// </summary>
/// <param name="frameNumber">The frame index</param>
/// <param name="camImage">The camera image</param>
/// <param name="poi">The fish location</param>
/// <returns>Whether experiment should continue or not</returns>
public override bool ProcessNext(int frameNumber, Image8 camImage, out IppiPoint?poi)
{
base.ProcessNext(frameNumber, camImage, out poi);
if (_scanner == null)
{
System.Diagnostics.Debug.WriteLine("Scanner was not initialized. Terminating experiment");
return(false);
}
int writeEvery = Properties.Settings.Default.FrameRate * 4;
if (frameNumber % writeEvery == writeEvery - 1)
{
_laser.LaserPower = Properties.Settings.Default.LaserCalibPowermW;
}
else
{
_laser.LaserPower = 0;
}
_lastFrame = frameNumber;
if (frameNumber >= _totalFrames)
{
return(false);
}
BlobWithMoments fish = null;
// Every 4s we turn on the laser - those frames won't be tracked but the image will be saved
if (frameNumber % writeEvery != 0)
{
fish = Tracker.Track(camImage);
}
if (fish != null)
{
poi = new IppiPoint(fish.Centroid.x, fish.Centroid.y);
if (_scanner != null)
{
_scanner.Hit(poi.GetValueOrDefault());
}
}
if (_trackWriter != null)
{
if (fish != null)
{
_trackWriter.WriteLine("{0}\t{1}\t{2}\t{3}", frameNumber, fish.Centroid.x, fish.Centroid.y, fish.Angle);
}
else
{
_trackWriter.WriteLine("NaN\tNaN\tNaN\tNaN");
}
// Write image of Laser On frames and the two surrounding frames on each side to file
if (frameNumber % writeEvery <= 2 || frameNumber % writeEvery >= writeEvery - 2)
{
_imageWriter.WriteFrame(camImage);
}
}
return(true);
}
/*
*
* /// <summary>
* /// Extract the next image
* /// </summary>
* /// <returns></returns>
* public Image8 Extract() {
* var image = new Image8(width, height);
* var bufferLength = (uint)(width * height);
* uint frameIndex;
* CheckError(IMAQdx.IMAQdxGetImageData(session, image.Image, bufferLength, IMAQdx.IMAQdxBufferNumberMode.IMAQdxBufferNumberModeNext, 0, out frameIndex));
* return image;
* }
*
* /// <summary>
* /// Extract the next image and return its index
* /// </summary>
* /// <param name="frameIndex"></param>
* /// <returns></returns>
* public Image8 Extract(out uint frameIndex) {
* var image = new Image8(width, height);
* var bufferLength = (uint)(width * height);
* CheckError(IMAQdx.IMAQdxGetImageData(session, image.Image, bufferLength, IMAQdx.IMAQdxBufferNumberMode.IMAQdxBufferNumberModeNext, 0, out frameIndex));
* return image;
* }
*
* /// <summary>
* /// Extract the image with the specified index
* /// </summary>
* /// <param name="frameIndex"></param>
* /// <returns></returns>
* public Image8 Extract(uint frameIndex) {
* var image = new Image8(width, height);
* uint actualFrameIndex;
* CheckError(IMAQdx.IMAQdxGetImageData(session, image.Image, bufferLength, IMAQdx.IMAQdxBufferNumberMode.IMAQdxBufferNumberModeBufferNumber, frameIndex, out actualFrameIndex));
* if (actualFrameIndex != frameIndex)
* System.Diagnostics.Debug.WriteLine("Warning: Expected frameIndex " + frameIndex + ", got frameIndex " + actualFrameIndex);
* return image;
* }
*
* /// <summary>
* /// Extract the next image into an existing Image8
* /// </summary>
* /// <param name="imageToReuse"></param>
* public void Extract(Image8 imageToReuse) {
* if (imageToReuse.Width != width || imageToReuse.Height != height)
* throw new Exception("Cannot reuse image, dimensions should be " + width + " x " + height + ", not " + imageToReuse.Width + " x " + imageToReuse.Height);
* uint frameIndex;
* CheckError(IMAQdx.IMAQdxGetImageData(session, imageToReuse.Image, bufferLength, IMAQdx.IMAQdxBufferNumberMode.IMAQdxBufferNumberModeNext, 0, out frameIndex));
* }
*
* /// <summary>
* /// Extract the next image into an existing Image8 and return its index
* /// </summary>
* /// <param name="frameIndex"></param>
* /// <returns></returns>
* public void Extract(Image8 imageToReuse, out uint frameIndex) {
* if (imageToReuse.Width != width || imageToReuse.Height != height)
* throw new Exception("Cannot reuse image, dimensions should be " + width + " x " + height + ", not " + imageToReuse.Width + " x " + imageToReuse.Height);
* CheckError(IMAQdx.IMAQdxGetImageData(session, imageToReuse.Image, bufferLength, IMAQdx.IMAQdxBufferNumberMode.IMAQdxBufferNumberModeNext, 0, out frameIndex));
* }*/
/// <summary>
/// Extract the image with the specified index into an existing Image8
/// </summary>
/// <param name="frameIndex"></param>
/// <returns></returns>
public void Extract(Image8 imageToReuse, uint frameIndex)
{
uint actualFrameIndex;
CheckError(IMAQdx.IMAQdxGetImageData(session, imageToReuse.Image, bufferLength, IMAQdx.IMAQdxBufferNumberMode.IMAQdxBufferNumberModeBufferNumber, frameIndex, out actualFrameIndex));
if (actualFrameIndex != frameIndex)
{
System.Diagnostics.Debug.WriteLine("Warning: Expected frameIndex " + frameIndex + ", got frameIndex " + actualFrameIndex);
}
}
public override bool ProcessNext(int frameNumber, Image8 camImage, out IppiPoint?poi)
{
//create tracker if necessary
if (Tracker == null)
{
Tracker = CreateFishTracker(camImage.Width, camImage.Height, new IppiPoint(camImage.Width / 2, camImage.Height / 2));
}
poi = null;
return(true);
}
/// <summary>
/// Initializes all internal buffers based on the
/// size of the current tracking region
/// </summary>
protected virtual void InitializeImageBuffers()
{
//create images
_background = new Image8(_imageSize);
_foreground = new Image8(_imageSize);
_thresholded = new Image8(_imageSize);
_calc1 = new Image8(_imageSize);
//blank foreground - to ensure that the border is always black!
ip.ippiSet_8u_C1R(0, _foreground.Image, _foreground.Stride, _imageSize);
}
public Graph(int width, int height)
{
Width = width;
Height = height;
//Initialize our color placeholder
_color = (byte *)Marshal.AllocHGlobal(3).ToPointer();
//Initialize new canvas for the bgr pixels (hence width*3)
_canvas = new Image8(width * 3, height);
ClearImage();
}
//Construct 32F image using an 8-bit unsigned image as input
public Image32F(Image8 im)
{
Width = im.Width;
Height = im.Height;
Size = new IppiSize(Width, Height);
Stride = 4 * Width;
Image = (float *)Marshal.AllocHGlobal(Stride * Height).ToPointer();
//convert image
IppHelper.IppCheckCall(ip.ippiConvert_8u32f_C1R(im.Image, im.Stride, Image, Stride, Size));
}