static void Main(string[] args)
{
var img = new Bgr<byte>[480, 640];
//***********************************************************************************************************************************************************************
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("********* TColor[,] <=> Image<> conversions (built-in) ****************"); Console.ResetColor();
//to Image<>
Image<Bgr<byte>> lockedImg = img.Lock();
//from Image<>
var arr = lockedImg.Clone();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("********* Image<,> <=> OpenCV conversions (built-in) ****************"); Console.ResetColor();
//to IplImage
IplImage iplImage;
using (var uImg = img.Lock())
{
iplImage = uImg.AsOpenCvImage(); //data is shared
}
//from IplImage
var imgFromIpl = iplImage.AsImage();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("*********** Image<,> <=> Bitmap conversions (BitmapInterop) ****************"); Console.ResetColor();
//to Bitmap
var bmp = img.ToBitmap();
//from Bitmap
var imgFromBmp = bmp.ToArray();
}
static void Main(string[] args)
{
var img = new Bgr <byte> [480, 640];
//***********************************************************************************************************************************************************************
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("********* TColor[,] <=> Image<> conversions (built-in) ****************"); Console.ResetColor();
//to Image<>
Image <Bgr <byte> > lockedImg = img.Lock();
//from Image<>
var arr = lockedImg.Clone();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("********* Image<,> <=> OpenCV conversions (built-in) ****************"); Console.ResetColor();
//to IplImage
IplImage iplImage;
using (var uImg = img.Lock())
{
iplImage = uImg.AsCvIplImage(); //data is shared
}
//from IplImage
var imgFromIpl = iplImage.AsImage();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("*********** Image<,> <=> Bitmap conversions (BitmapInterop) ****************"); Console.ResetColor();
//to Bitmap
var bmp = img.ToBitmap();
//from Bitmap
var imgFromBmp = bmp.ToArray();
}
static void Main(string[] args)
{
Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);
Environment.SetEnvironmentVariable("PATH", Environment.GetEnvironmentVariable("PATH") + ";runtimes/win10-x64/"); //only needed if projects are directly referenced
var img = new Bgr <byte> [480, 640];
//***********************************************************************************************************************************************************************
Console.ForegroundColor = ConsoleColor.Green; Console.WriteLine("********* TColor[,] <=> Image<> conversions (built-in) ****************"); Console.ResetColor();
//to Image<>
Image <Bgr <byte> > lockedImg = img.Lock();
//from Image<>
var arr = lockedImg.Clone();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Green; Console.WriteLine("********* Image<,> <=> OpenCV conversions (built-in) ****************"); Console.ResetColor();
//to IplImage
IplImage iplImage;
using (var uImg = img.Lock())
{
iplImage = uImg.AsCvIplImage(); //data is shared
}
//from IplImage
var imgFromIpl = iplImage.AsImage();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Green; Console.WriteLine("*********** Image<,> <=> Bitmap conversions (BitmapInterop) ****************"); Console.ResetColor();
//to Bitmap
var bmp = img.ToBitmap();
//from Bitmap
var imgFromBmp = bmp.ToImage <Bgr <byte> >();
}
static void Main()
{
//var reader = new CameraCapture(0); //capture from camera
var reader = new FileCapture(Path.Combine(getResourceDir(), "Welcome.mp4"));
reader.Open();
var writer = new VideoWriter(@"output.avi", reader.FrameSize, /*reader.FrameRate does not work Cameras*/ 30); //TODO: bug: FPS does not work for cameras
writer.Open();
Bgr <byte>[,] frame = null;
do
{
reader.ReadTo(ref frame);
if (frame == null)
{
break;
}
using (var uFrame = frame.Lock())
{ writer.Write(uFrame); }
frame.Show(scaleForm: true);
}while (!(Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape));
reader.Dispose();
writer.Dispose();
UI.CloseAll();
}
/// <summary>
/// Save a stream of image frames as an AVI video file.
/// </summary>
/// <param name="frames">Ordered list of frames at 30 fps.</param>
/// <param name="width">Frame width.</param>
/// <param name="height">Frame height.</param>
/// <param name="file">Output filename.</param>
public static void SaveAsAvi(List <Color[]> frames, int width, int height, string file)
{
if (frames.Count == 0)
{
return;
}
using (VideoWriter writer = new VideoWriter(file, new Size(width, height),
30, true, VideoCodec.FromName("MJPG"))) {
writer.Open();
foreach (Color[] frame in frames)
{
Bgr <byte>[,] bitmap = new Bgr <byte> [height, width];
int h = 0;
for (int k = 0; k < height; k++)
{
for (int i = 0; i < width; i++)
{
bitmap[k, i] = new Bgr <byte>(frame[h].B, frame[h].G, frame[h].R);
h++;
}
}
writer.Write(bitmap.Lock());
}
writer.Close();
}
}
/// <summary>
/// Evaluates the function using the provided image.
/// </summary>
/// <param name="image">Color image.</param>
/// <returns>Entropy value. Smaller entropy is preferred.</returns>
public unsafe float Evaluate(Bgr <byte>[,] image)
{
var histogram = new int[HISTOGRAM_SIZE];
using (var uImg = image.Lock())
{
Bgr8 *imData = (Bgr8 *)uImg.ImageData;
for (int r = 0; r < uImg.Height; r++)
{
for (int c = 0; c < uImg.Width; c++)
{
Bgr8 bgr = imData[c];
float intensity = 0.2126f * bgr.R + 0.7152f * bgr.G + 0.0722f * bgr.B;
float gain = getGainAt(this, c, r, uImg.Width, uImg.Height);
int correction = (int)(gain * intensity);
updateHistogram(histogram, correction);
}
imData = (Bgr8 *)((byte *)imData + uImg.Stride);
}
}
float entropy = calculateEntropy(histogram);
return(entropy);
}
static void Main()
{
Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);
Environment.SetEnvironmentVariable("PATH", Environment.GetEnvironmentVariable("PATH") + ";runtimes/win10-x64/"); //only needed if projects are directly referenced
//var reader = new CameraCapture(0); //capture from camera
var reader = new FileCapture(Path.Combine(getResourceDir(), "Welcome.mp4"));
reader.Open();
var writer = new VideoWriter(@"output.avi", reader.FrameSize, /*reader.FrameRate does not work Cameras*/ 30); //TODO: bug: FPS does not work for cameras
writer.Open();
Bgr <byte>[,] frame = null;
do
{
reader.ReadTo(ref frame);
if (frame == null)
{
break;
}
using (var uFrame = frame.Lock())
{ writer.Write(uFrame); }
frame.Show(autoSize: true);
}while (!(Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape));
reader.Dispose();
writer.Dispose();
ImageUI.CloseAll();
}
/// <summary>
/// Sets the specified image.
/// </summary>
/// <param name="image">Image to display.</param>
public void SetImage(Bgr<byte>[,] image)
{
if (bmp == null || bmp.Width != image.Width() || bmp.Height != image.Height())
{
bmp = new Bitmap(image.Width(), image.Height(), PixelFormat.Format24bppRgb);
}
BitmapData bmpData = bmp.Lock();
if (bmpData.BytesPerPixel != image.ColorInfo().Size)
{
bmpData.Dispose();
bmpData = null;
bmp = new Bitmap(image.Width(), image.Height(), PixelFormat.Format24bppRgb);
}
bmpData = bmpData ?? bmp.Lock();
using (var uIm = image.Lock())
{
Copy.UnsafeCopy2D(uIm.ImageData, bmpData.Data, uIm.Stride, bmpData.ScanWidth, uIm.Height);
}
bmpData.Dispose();
imageView.Image = bmp;
if (ScaleForm)
ClientSize = new Size(image.Width(), image.Height());
}
static void Main(string[] args)
{
Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);
Environment.SetEnvironmentVariable("PATH", Environment.GetEnvironmentVariable("PATH") + ";runtimes/win10-x64/"); //only needed if projects are directly referenced
var img = new Bgr <byte> [480, 640];
//***********************************************************************************************************************************************************************
Console.ForegroundColor = ConsoleColor.Green; Console.WriteLine("********* TColor[,] <=> Image<> conversions (built-in) ****************"); Console.ResetColor();
//to Image<>
Image <Bgr <byte> > lockedImg = img.Lock();
//from Image<>
var arr = lockedImg.Clone();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Green; Console.WriteLine("********* Image<,> <=> OpenCV conversions (built-in) ****************"); Console.ResetColor();
//to IplImage
IplImage iplImage;
using (var uImg = img.Lock())
{
iplImage = uImg.AsCvIplImage(); //data is shared
}
//from IplImage
var imgFromIpl = iplImage.AsImage();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Green; Console.WriteLine("*********** Image<,> <=> Bitmap conversions (BitmapInterop) ****************"); Console.ResetColor();
//to Bitmap
var bmp = img.ToBitmap();
//from Bitmap
var imgFromBmp = bmp.ToImage <Bgr <byte> >();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Green; Console.WriteLine("*********** Image<,> <=> BitmapSource conversions (BitmapSourceInterop) ****************"); Console.ResetColor();
//to generic-image
var colorBitmap = new BitmapImage(new Uri("http://www.online-image-editor.com//styles/2014/images/example_image.png"));
Bgra <byte>[,] colorImg = colorBitmap.ToArray <Bgra <byte> >();
//to BitmapSource
Gray <byte>[,] grayImg = img.ToGray();
BitmapSource grayBitmap = grayImg.ToBitmapSource();
}
static void Main(string[] args)
{
var img = new Bgr <byte> [480, 640];
//***********************************************************************************************************************************************************************
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("********* TColor[,] <=> Image<> conversions (built-in) ****************"); Console.ResetColor();
//to Image<>
Image <Bgr <byte> > lockedImg = img.Lock();
//from Image<>
var arr = lockedImg.Clone();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("********* Image<,> <=> OpenCV conversions (built-in) ****************"); Console.ResetColor();
//to IplImage
IplImage iplImage;
using (var uImg = img.Lock())
{
iplImage = uImg.AsOpenCvImage(); //data is shared
}
//from IplImage
var imgFromIpl = iplImage.AsImage();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("*********** Image<,> <=> Bitmap conversions (BitmapInterop) ****************"); Console.ResetColor();
//to Bitmap
var bmp = img.ToBitmap();
//from Bitmap
var imgFromBmp = bmp.ToArray();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("****** TColor[,] <=> AForge UnmanagedImage conversions (AForgeInterop) *******"); Console.ResetColor();
//to AForge image
using (var uImg = img.Lock())
{
UnmanagedImage uIm = uImg.AsAForgeImage(); //data is shared
}
//from AForge image
UnmanagedImage aforgeIm = UnmanagedImage.Create(640, 480, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
var imgFromAForge = aforgeIm.AsImage(); //TODO: extensions directly to array
}
static void Main(string[] args)
{
var img = new Bgr <byte> [480, 640];
//***********************************************************************************************************************************************************************
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("********* TColor[,] <=> Image<> conversions (built-in) ****************"); Console.ResetColor();
//to Image<>
Image <Bgr <byte> > lockedImg = img.Lock();
//from Image<>
var arr = lockedImg.Clone();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("********* Image<,> <=> OpenCV conversions (built-in) ****************"); Console.ResetColor();
//to IplImage
IplImage iplImage;
using (var uImg = img.Lock())
{
iplImage = uImg.AsCvIplImage(); //data is shared
}
//from IplImage
var imgFromIpl = iplImage.AsImage();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("*********** Image<,> <=> Bitmap conversions (BitmapInterop) ****************"); Console.ResetColor();
//to Bitmap
var bmp = img.ToBitmap();
//from Bitmap
var imgFromBmp = bmp.ToArray();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("*********** Image<,> <=> BitmapSource conversions (BitmapSourceInterop) ****************"); Console.ResetColor();
//to generic-image
var colorBitmap = new BitmapImage(new Uri("http://www.online-image-editor.com//styles/2014/images/example_image.png"));
Bgra <byte>[,] colorImg = colorBitmap.ToArray <Bgra <byte> >();
//to BitmapSource
Gray <byte>[,] grayImg = img.ToGray();
BitmapSource grayBitmap = grayImg.ToBitmapSource();
}
static void Main(string[] args)
{
var img = new Bgr<byte>[480, 640];
//***********************************************************************************************************************************************************************
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("********* TColor[,] <=> Image<> conversions (built-in) ****************"); Console.ResetColor();
//to Image<>
Image<Bgr<byte>> lockedImg = img.Lock();
//from Image<>
var arr = lockedImg.Clone();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("********* Image<,> <=> OpenCV conversions (built-in) ****************"); Console.ResetColor();
//to IplImage
IplImage iplImage;
using (var uImg = img.Lock())
{
iplImage = uImg.AsCvIplImage(); //data is shared
}
//from IplImage
var imgFromIpl = iplImage.AsImage();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("*********** Image<,> <=> Bitmap conversions (BitmapInterop) ****************"); Console.ResetColor();
//to Bitmap
var bmp = img.ToBitmap();
//from Bitmap
var imgFromBmp = bmp.ToArray();
//***********************************************************************************************************************************************************************
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("*********** Image<,> <=> BitmapSource conversions (BitmapSourceInterop) ****************"); Console.ResetColor();
//to generic-image
var colorBitmap = new BitmapImage(new Uri("http://www.online-image-editor.com//styles/2014/images/example_image.png"));
Bgra<byte>[,] colorImg = colorBitmap.ToArray<Bgra<byte>>();
//to BitmapSource
Gray<byte>[,] grayImg = img.ToGray();
BitmapSource grayBitmap = grayImg.ToBitmapSource();
}
/// <summary>
/// Sets the specified image.
/// </summary>
/// <param name="image">Image to display.</param>
public void SetImage(Bgr<byte>[,] image)
{
if (bmp == null || bmp.Width != image.Width() || bmp.Height != image.Height())
{
bmp = new Bitmap(image.Width(), image.Height(), PixelFormat.Format24bppRgb);
}
using (BitmapData bmpData = bmp.Lock())
using (var uIm = image.Lock())
{
Copy.UnsafeCopy2D(uIm.ImageData, bmpData.Data, uIm.Stride, bmpData.ScanWidth, uIm.Height);
}
PictureBox.Image = bmp;
if (ScaleForm)
ClientSize = new Size(image.Width(), image.Height());
}
/// <summary>
/// Computes gradient orientations from the color image. Orientation from the channel which has the maximum gradient magnitude is taken as the orientation for a location.
/// </summary>
/// <param name="frame">Image.</param>
/// <param name="magnitudeSqrImage">Squared magnitude image.</param>
/// <param name="minValidMagnitude">Minimal valid magnitude.</param>
/// <returns>Orientation image (angles are in degrees).</returns>
public unsafe static Gray <int>[,] Compute(Bgr <byte>[,] frame, out Gray <int>[,] magnitudeSqrImage, int minValidMagnitude)
{
var minSqrMagnitude = minValidMagnitude * minValidMagnitude;
var orientationImage = new Gray <int> [frame.Height(), frame.Width()];
var _magnitudeSqrImage = orientationImage.CopyBlank();
using (var uFrame = frame.Lock())
{
ParallelLauncher.Launch(thread =>
{
computeColor(thread, (byte *)uFrame.ImageData, uFrame.Stride, orientationImage, _magnitudeSqrImage, minSqrMagnitude);
},
frame.Width() - 2 * kernelRadius, frame.Height() - 2 * kernelRadius);
}
magnitudeSqrImage = _magnitudeSqrImage;
return(orientationImage);
}
void capture_NewFrame(object sender, EventArgs e)
{
reader.ReadTo(ref frame);
if (frame == null)
{
Application.Idle -= capture_NewFrame;
return;
}
this.pictureBox.Image = frame.ToBitmap();
bool isFrameWritten = writer.Write(frame.Lock()); //TODO: revise
if (!isFrameWritten)
{
MessageBox.Show("Frame is not written!", "Frame writing error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
GC.Collect();
}
/// <summary>
/// Applies the de-vignetting function to the specified color image.
/// </summary>
/// <param name="image">Image to correct.</param>
public unsafe void Apply(Bgr <byte>[,] image)
{
using (var uImg = image.Lock())
{
Bgr8 *imData = (Bgr8 *)uImg.ImageData;
for (int r = 0; r < uImg.Height; r++)
{
for (int c = 0; c < uImg.Width; c++)
{
float gain = getGainAt(this, c, r, uImg.Width, uImg.Height);
Bgr8 *bgr = &imData[c];
bgr->B = clampToByte((int)(bgr->B * gain));
bgr->G = clampToByte((int)(bgr->G * gain));
bgr->R = clampToByte((int)(bgr->R * gain));
}
imData = (Bgr8 *)((byte *)imData + uImg.Stride);
}
}
}
