public static double[] ReadFrequencies(string file)
{
Fits f = new Fits(file);
ImageHDU h = (ImageHDU)f.ReadHDU();
return((double[])h.Kernel);
}
public static Image <Gray, UInt16> ReadFITSFile(String ImagePath)
{
try
{
Fits f = new Fits(ImagePath);
ImageHDU h = (ImageHDU)f.ReadHDU();
System.Array[] img = (System.Array[])h.Kernel;
f.Close();
int Width = img.Count();
int Height = img.GetLength(0);
UInt16[][] ImgConverted = new UInt16[Width][];
Image <Gray, UInt16> LastestImageCV = new Image <Gray, UInt16>(Width, Height);
Int16 MaxNumber = Int16.MaxValue;
for (int i = 0; i < Width; i++)
{
ImgConverted[i] = new UInt16[Height];
for (int j = 0; j < Height; j++)
{
int Data = MaxNumber + (Int16)img[i].GetValue(j) + 1;
ImgConverted[i][j] = (UInt16)Data;
LastestImageCV.Data[i, j, 0] = (UInt16)Data;
}
}
return(LastestImageCV);
}
catch
{
return(null);
}
}
public static double[,,] ReadUVW(string file, int fromBl, int toBl)
{
var f = new Fits(file);
var h = (ImageHDU)f.ReadHDU();
// Double Cube Dimensions: baseline, time, uvw
var uvw_raw = (Array[])h.Kernel;
var time_samples = uvw_raw[0].Length;
var length = toBl - fromBl;
var uvw = new double[length, time_samples, 3];
for (long i = fromBl; i < toBl; i++)
{
Array[] bl = (Array[])uvw_raw[i];
for (int j = 0; j < time_samples; j++)
{
double[] values = (double[])bl[j];
uvw[i - fromBl, j, 0] = values[0]; //u
uvw[i - fromBl, j, 1] = -values[1]; //v
uvw[i - fromBl, j, 2] = values[2]; //w
}
}
return(uvw);
}
public static Complex[,,] ReadVisibilities(string file, int fromBl, int toBl, int timessamplesCount, int channelsCount, double norm)
{
var f = new Fits(file);
var h = (ImageHDU)f.ReadHDU();
//Double cube Dimensions: baseline, time, channel, pol, complex_component
var vis_raw = (Array[])h.Kernel;
var length = toBl - fromBl;
var visibilities = new Complex[length, timessamplesCount, channelsCount];
for (int i = fromBl; i < toBl; i++)
{
Array[] bl = (Array[])vis_raw[i];
for (int j = 0; j < timessamplesCount; j++)
{
Array[] times = (Array[])bl[j];
for (int k = 0; k < channelsCount; k++)
{
Array[] channel = (Array[])times[k];
double[] pol_XX = (double[])channel[0];
double[] pol_YY = (double[])channel[3];
//add polarizations XX and YY together to form Intensity Visibilities only
visibilities[i - fromBl, j, k] = new Complex(
(pol_XX[0] + pol_YY[0]) / norm,
(pol_XX[1] + pol_YY[1]) / norm);
}
}
}
return(visibilities);
}
private static void readImage(string fileName, out Int16[][] img, out Header hdr)
{
Fits f = new Fits(fileName);
ImageHDU h = (ImageHDU)f.ReadHDU();
hdr = h.Header;
Int32 height = h.Axes[0];
Int32 width = h.Axes[1];
Int16 [][] inImg = new Int16[height][];
int x, y;
img = new Int16[height][];
object[] rows = (System.Array[])h.Kernel;
for (y = 0; y < height / 2; y++)
{
inImg[y] = new Int16[2 * width];
for (x = 0; x < width; x++)
{
inImg[y][x] = (Int16)((Int16[])rows[2 * y])[x];
inImg[y][x + width] = (Int16)((Int16[])rows[2 * y + 1])[x];
}
}
for (y = 0; y < height; y++)
{
img[y] = new Int16[width];
for (x = 0; x < width; x++)
{
img[y][x] = (Int16)((Int16[])rows[y])[x];
}
}
#if false
for (y = 0; y < height; y += 2)
{
int inX = 0;
int inY = y / 2;
img[y] = new Int16[width];
img[y + 1] = new Int16[width];
for (x = 0; x < width; x += 2)
{
img[y][x] = inImg[inY][inX++];
img[y + 1][x] = inImg[inY][inX++];
img[y + 1][x + 1] = inImg[inY][inX++];
img[y][x + 1] = inImg[inY][inX++];
}
}
#endif
}
public static int CountBaselines(string file)
{
var f = new Fits(file);
var h = (ImageHDU)f.ReadHDU();
// Double Cube Dimensions: baseline, time, uvw
var uvw_raw = (Array[])h.Kernel;
var baselines = uvw_raw.Length;
return(baselines);
}
private static void xreadImage(string fileName, out Int16[][] img, out Header hdr)
{
Fits f = new Fits(fileName);
ImageHDU h = (ImageHDU)f.ReadHDU();
hdr = h.Header;
Int32 height = h.Axes[0];
Int32 width = h.Axes[1];
object[] rows = (System.Array[])h.Kernel;
Int16[] inImg = new Int16[height * width];
int x, y;
int idx = 0;
for (y = 0; y < height; y++)
{
Int16[] row = (Int16[])rows[y];
for (x = 0; x < width; x++)
{
inImg[idx++] = row[x];
}
}
Int16 [] outImg = new Int16[height * width];
int srcIdx, destIdx;
for (srcIdx = 0, destIdx = 0, y = 0; y < height / 2; y++)
{
for (x = 0; x < width / 2; x++)
{
outImg[destIdx] = inImg[srcIdx++];
outImg[width + destIdx++] = inImg[srcIdx++];
outImg[width + destIdx] = inImg[srcIdx++];
outImg[destIdx++] = inImg[srcIdx++];
}
destIdx += width;
}
img = new Int16[height][];
for (srcIdx = 0, y = 0; y < height; y++)
{
img[y] = new Int16[width];
for (x = 0; x < width; x++)
{
img[y][x] = outImg[srcIdx++];
}
}
}
public static double[,] ReadImageDouble(string file)
{
Fits f = new Fits(file);
ImageHDU h = (ImageHDU)f.ReadHDU();
var imgRaw = (Array[])h.Kernel;
var output = new double[imgRaw.Length, imgRaw[0].Length];
for (int i = 0; i < imgRaw.Length; i++)
{
var row = (double[])imgRaw[i];
for (int j = 0; j < row.Length; j++)
{
output[i, j] = row[j];
}
}
return(output);
}
public static double[,] ReadBeam(string file)
{
var f = new Fits(file);
var h = (ImageHDU)f.ReadHDU();
var raw = (Array[])h.Kernel;
var img = new double[raw.Length, raw.Length];
for (int i = 0; i < raw.Length; i++)
{
var col = (double[])raw[i];
for (int j = 0; j < col.Length; j++)
{
img[i, j] = col[j];
}
}
return(img);
}
private BasicHDU ReadFIT(string fileName)
{
Fits f = new Fits(fileName);
try
{
BasicHDU hdus = f.ReadHDU();
if (hdus != null)
{
hdus.Info();
// TEST: NUM SHARP TEST
ImageHDU imgHdu = (ImageHDU)f.GetHDU(0);
numSharp.InitImage(imgHdu, fileName);
}
return(hdus);
}
catch (Exception e)
{
throw e;
}
}
public static bool[,,] ReadFlags(string file, int fromBl, int toBl, int timessamplesCount, int channelsCount)
{
var length = toBl - fromBl;
var output = new bool[length, timessamplesCount, channelsCount];
var f = new Fits(file);
var h = (ImageHDU)f.ReadHDU();
var flags_raw = (Array[])h.Kernel;
for (int i = fromBl; i < toBl; i++)
{
Array[] bl = (Array[])flags_raw[i];
for (int j = 0; j < timessamplesCount; j++)
{
Array[] times = (Array[])bl[j];
for (int k = 0; k < channelsCount; k++)
{
double[] pols = (double[])times[k];
var sum = 0.0;
for (int l = 0; l < pols.Length; l++)
{
sum += pols[l];
}
//visibilitiy has been flagged
if (sum == 0)
{
output[i - fromBl, j, k] = false;
}
else
{
output[i - fromBl, j, k] = true;
}
}
}
}
return(output);
}
/// <summary>
/// Corrige el nombre un archivo "fits".
/// Dejando intacta la ruta (carpeta) original.
///
/// Además si es un archivo fits, corrige el contenido del campo
/// object en la misma lógica que la corrección del nombre del archivo.
///
/// Primero se corrige el contenido del archivo y luego el nombre.
/// </summary>
/// <param name="archivo"></param>
private void correctFits(FileInfo archivo)
{
logger.Info("correctFits:archivo=" + archivo.Name);
String ruta;
String oldFileName;
String newFileName;
String extension;
String oldFullFilename;
String newFullFilename;
Boolean requiereRename; //True solo si se detecta que es pertinente un rename
requiereRename = false;
ruta = archivo.DirectoryName;
oldFileName = archivo.Name;
extension = archivo.Extension;
newFileName = archivo.Name;
oldFullFilename = archivo.FullName;
if (extension == ".fts")
{
requiereRename = true;
logger.Info(";.fts->.fits");
newFileName = newFileName.Replace(".fts", ".fits");
}
if (oldFileName.Contains("+"))
{
requiereRename = true;
logger.Info(";'+'->'p'");
newFileName = newFileName.Replace("+", "p");
///////////////
if ((extension == ".fts") || (extension == ".fits"))
{
Fits fitsFile;
String strObject; // El string que hay que corregir.
String strCorrectedObject;
fitsFile = new Fits(oldFullFilename);
BasicHDU hdu;
hdu = fitsFile.ReadHDU();
HeaderCard hcOBJECT;// Target object name <---- Asi esta comentado en MaximDL
hcOBJECT = hdu.Header.FindCard("OBJECT");
strObject = hcOBJECT.Value;
if (strObject.Contains("+"))
{
strCorrectedObject = strObject.Replace("+", "p");
hcOBJECT.Value = strCorrectedObject;
}
hdu.Header.Rewrite();
fitsFile.Close();
}
///////////////
}
if (requiereRename)
{
newFullFilename = ruta + Path.DirectorySeparatorChar + newFileName;
logger.Info(";" + oldFullFilename + "->" + newFullFilename);
try
{
archivo.MoveTo(newFullFilename);
}
catch (Exception e)
{
logger.Error(e.Message);
}
}
//Console.WriteLine("#");
}
/// <summary>
/// Revisa las coordenadas de un archivo "fits".
/// Dejando intacta la ruta (carpeta) original.
///
/// Avisa por pantalla:
/// - Si las coordenadas del filename no coinciden con las del fits.
///
/// </summary>
/// <param name="archivo"></param>
private void revisaRaDecFits(FileInfo archivo)
{
//logger.Info("correctFits:archivo=" + archivo.Name);
String ruta;
String shortFileName;
String extension;
String fullFilename;
ruta = archivo.DirectoryName;
shortFileName = archivo.Name;
extension = archivo.Extension;
fullFilename = archivo.FullName;
///////////////
if ((extension == ".fts") || (extension == ".fits"))
{
Fits fitsFile;
String strObject;
String strObjectRA;
String strObjectDEC;
fitsFile = new Fits(fullFilename);
BasicHDU hdu;
hdu = fitsFile.ReadHDU();
HeaderCard hcOBJECT; // Target object name <---- Asi esta comentado en MaximDL
HeaderCard hcOBJCTRA; // [hms J2000] Target right ascension <---- Asi esta comentado en MaximDL
HeaderCard hcOBJCTDEC; // [dms +N J2000] Target declination <---- Asi esta comentado en MaximDL
hcOBJECT = hdu.Header.FindCard("OBJECT"); //OBJECT = 'F1910178-615834'
hcOBJCTRA = hdu.Header.FindCard("OBJCTRA"); //OBJCTRA = '19 10 17.80'
hcOBJCTDEC = hdu.Header.FindCard("OBJCTDEC"); //OBJCTDEC = '-61 58 34.0'
strObject = hcOBJECT.Value;
strObjectRA = null;
strObjectDEC = null;
if (hcOBJCTRA != null)
{
strObjectRA = hcOBJCTRA.Value;
}
if (hcOBJCTDEC != null)
{
strObjectDEC = hcOBJCTDEC.Value;
}
fitsFile.Close();
if ((strObjectRA != null) && (strObject.StartsWith("F")))
{
StringBuilder radec;
//strObjectRA = EntreComillas(strObjectRA)[1];
radec = new StringBuilder();
radec.Append("F");
radec.Append(strObjectRA.Replace(" ", "").Replace(".", "").Substring(0, 7));
//if (!strObjectDEC.StartsWith("-"))
//{
// radec.Append("p");
//}
radec.Append(strObjectDEC.Replace(" ", "").Replace(".", "").Replace("+", "p").Substring(0, 7));
StringBuilder comparacion;
comparacion = new StringBuilder();
comparacion.Append(strObject);
comparacion.Append("==");
comparacion.Append(radec);
comparacion.Append(" --> ");
Boolean match;
match = strObject.Equals(radec.ToString());
comparacion.Append(match);
Console.WriteLine(comparacion.ToString());
if (!match)
{
StringBuilder mensaje;
mensaje = new StringBuilder();
mensaje.Append(comparacion.ToString());
mensaje.Append("\trm\t");
mensaje.Append(shortFileName);
mensaje.Append("\t");
mensaje.Append(fullFilename);
Console.WriteLine(mensaje.ToString());
}
}
}
///////////////
}
/// <summary>
/// Modifica el header de un archivo .fits, previo al envio
/// del archivo a otro servidor. /// </summary>
/// <param name="fitsFullPath"></param>
/// <returns>True si consigue modificar el header del archivo</returns>
public Boolean CompletaFitsHeader(String fitsFullPath)
{
this.refreshATC02XmlStatus();
if (!this.atc02Status.IsFresh())
{
logger.Info("ATC02 sin datos recientes, no se actualizara Archivo fits '" + fitsFullPath + "'");
return(false);
}
FileInfo archivoFitsNuevo;
int test;
int testLimit;
test = 1;
testLimit = 4;
archivoFitsNuevo = new FileInfo(fitsFullPath);
do
{
test++;
if (archivoFitsNuevo.Exists)
{
break;
}
else
{
logger.Warn(String.Format("Archivo '{0}'no existe, intento {1} de {2}, esperando 1 segundo.", fitsFullPath, test, testLimit));
System.Threading.Thread.Sleep(1000);
}
} while (test <= testLimit);
if (!archivoFitsNuevo.Exists)
{
logger.Error(String.Format("Archivo '{0}'no existe.", fitsFullPath));
return(false);
}
Boolean respuesta;
respuesta = true; // Solo si ocurre alguna excepcion esta variable sera False
DateTime Ahora;
Ahora = DateTime.Now;
Fits fitsFile;
System.Threading.Thread.Sleep(1000);
fitsFile = new Fits(fitsFullPath);
BasicHDU hdu;
hdu = fitsFile.ReadHDU();
HeaderCard hcDATE_OBS; // [ISO 8601] UTC date/time of exposure start
HeaderCard hcEXPOSURE; // [sec] Duration of exposure
hcDATE_OBS = hdu.Header.FindCard("DATE-OBS");
hcEXPOSURE = hdu.Header.FindCard("EXPOSURE");
DateTime dateObs;
dateObs = DateTime.Parse(hcDATE_OBS.Value); //// [ISO 8601] UTC date/time of exposure start
Double exposure; // [sec] Duration of exposure
exposure = Double.Parse(hcEXPOSURE.Value);
TimeSpan vejezFits; // Tiempo Transcurrido entre termino de exposición y el presente
vejezFits = Ahora.Subtract(dateObs);
double vejezSegundos;
vejezSegundos = ((vejezFits.TotalSeconds) - exposure);
logger.Info("Vejez archivo FITS=" + vejezSegundos + "[segundos].");
// Si la vejez del archiv Fits es menor a veinte segundos
// entonces se modifica el encabezado del fits
// con la información del ATC02
if (vejezSegundos < 20)
{
HeaderCard hcFocStep;
HeaderCard hcPriTemp;
HeaderCard hcSecTemp;
HeaderCard hcAmbTemp;
HeaderCard hcSetFan;
logger.Info("Actualizando archivo FITS:" + fitsFullPath);
hcFocStep = hdu.Header.FindCard("FOCSTEP");
hcPriTemp = hdu.Header.FindCard("PRITEMP");
hcSecTemp = hdu.Header.FindCard("SECTEMP");
hcAmbTemp = hdu.Header.FindCard("AMBTEMP");
hcSetFan = hdu.Header.FindCard("SETFAN");
if (hcFocStep == null)
{
hcFocStep = new HeaderCard("FOCSTEP");
hdu.Header.AddCard(hcFocStep);
}
if (hcPriTemp == null)
{
hcPriTemp = new HeaderCard("PRITEMP");
hdu.Header.AddCard(hcPriTemp);
}
if (hcSecTemp == null)
{
hcSecTemp = new HeaderCard("SECTEMP");
hdu.Header.AddCard(hcSecTemp);
}
if (hcAmbTemp == null)
{
hcAmbTemp = new HeaderCard("AMBTEMP");
hdu.Header.AddCard(hcAmbTemp);
}
if (hcSetFan == null)
{
hcSetFan = new HeaderCard("SETFAN");
hdu.Header.AddCard(hcSetFan);
}
hcFocStep.Value = ("" + Atc02Xml.BflToFocSetp(this.atc02Status.FocusPosition));
hcPriTemp.Value = ("" + this.atc02Status.PrimaryTemperature);
hcSecTemp.Value = ("" + this.atc02Status.SecondaryTemperature);
hcAmbTemp.Value = ("" + this.atc02Status.AmbientTemperature);
hcSetFan.Value = ("" + this.atc02Status.FanPower);
System.Threading.Thread.Sleep(4000);
try
{
hdu.Header.Rewrite();
}
catch (Exception)
{
respuesta = false;
logger.Error("Error en: hdu.Header.Rewrite();");
}
}
fitsFile.Close();
// Permitimos al sistema que guarde los cambios en el archivo fits.
System.Threading.Thread.Sleep(1000);
return(respuesta);
}
private FitsHeader ReadFits(string Filename)
{
/* double RA;
* double DEC;
* float[][] imageData;
* string LocalDate;
* double SiteLong;
* double SiteLat; */
FitsHeader fitsheader = new FitsHeader();
try
{
Fits f = new Fits(Filename);
ImageHDU h = (ImageHDU)f.ReadHDU();
//other things we might want:
// IMAGETYP= 'LIGHT'
// NAXIS1 = 7380 /
// NAXIS2 = 4908
// EXPTIME = 6.0 / [s] Exposure duration
// DATE-LOC= '2020-10-07T01:28:55.164' / Time of observation (local)
// GAIN = 1208 / Sensor gain
// XPIXSZ = 4.88 / [um] Pixel X axis size
// YPIXSZ = 4.88 / [um] Pixel Y axis size
// SITELAT = 47.6077777777778 / [deg] Observation site latitude
// SITELONG = -122.335 / [deg] Observation site longitude]
fitsheader.ImageType = h.Header.GetStringValue("IMAGETYP");
fitsheader.NAXIS1 = h.Header.GetIntValue("NAXIS1");
fitsheader.NAXIS2 = h.Header.GetIntValue("NAXIS2");
fitsheader.DecDeg = h.Header.GetDoubleValue("DEC");
fitsheader.RaDeg = h.Header.GetDoubleValue("RA") / 15;
fitsheader.Exposure = h.Header.GetFloatValue("EXPOSURE");
fitsheader.LocalDate = DateTime.ParseExact(h.Header.GetStringValue("DATE-LOC"), "yyyy-MM-ddTHH:mm:ss.fff", CultureInfo.InvariantCulture);
fitsheader.UTCDate = DateTime.ParseExact(h.Header.GetStringValue("DATE-OBS"), "yyyy-MM-ddTHH:mm:ss.fff", CultureInfo.InvariantCulture);
fitsheader.SiteLat = h.Header.GetDoubleValue("SITELAT");
fitsheader.SiteLong = h.Header.GetDoubleValue("SITELONG");
fitsheader.PixelPitch = h.Header.GetFloatValue("XPIXSZ");
fitsheader.Gain = h.Header.GetIntValue("GAIN");
fitsheader.SensorTempC = h.Header.GetFloatValue("CCD-TEMP");
fitsheader.FocalLength = h.Header.GetFloatValue("FOCALLEN");
fitsheader.Object = h.Header.GetStringValue("OBJECT");
/*RA = h.Header.GetDoubleValue("RA") / 15;
* DEC = h.Header.GetDoubleValue("DEC");
* LocalDate = h.Header.GetStringValue("DATE-LOC");
* SiteLat = h.Header.GetDoubleValue("SITELAT");
* SiteLong = h.Header.GetDoubleValue("SITELAT");
*
*
* //imageData = (float[][])h.Kernel; */
f.Close();
}
catch { Console.WriteLine("Error opening fits.."); return(fitsheader); }
return(fitsheader);
}
public static Task <IImageData> Load(Uri filePath, bool isBayered)
{
return(Task.Run <IImageData>(() => {
Fits f = new Fits(filePath);
ImageHDU hdu = (ImageHDU)f.ReadHDU();
Array[] arr = (Array[])hdu.Data.DataArray;
var dimensions = hdu.Header.GetIntValue("NAXIS");
if (dimensions > 2)
{
//Debayered Images are not supported. Take the first dimension instead to get at least a monochrome image
arr = (Array[])arr[0];
}
var width = hdu.Header.GetIntValue("NAXIS1");
var height = hdu.Header.GetIntValue("NAXIS2");
var bitPix = hdu.Header.GetIntValue("BITPIX");
var converter = GetConverter(bitPix);
ushort[] pixels = converter.Convert(arr, width, height);
//Translate nom.tam.fits into N.I.N.A. FITSHeader
FITSHeader header = new FITSHeader(width, height);
var iterator = hdu.Header.GetCursor();
while (iterator.MoveNext())
{
HeaderCard card = (HeaderCard)((DictionaryEntry)iterator.Current).Value;
if (card.Value != null)
{
if (card.IsStringValue)
{
header.Add(card.Key, card.Value, card.Comment);
}
else
{
if (card.Value == "T")
{
header.Add(card.Key, true, card.Comment);
}
else if (card.Value.Contains("."))
{
if (double.TryParse(card.Value, NumberStyles.Number, CultureInfo.InvariantCulture, out var value))
{
header.Add(card.Key, value, card.Comment);
}
}
else
{
if (int.TryParse(card.Value, NumberStyles.Number, CultureInfo.InvariantCulture, out var value))
{
header.Add(card.Key, value, card.Comment);
}
}
}
}
}
var metaData = new ImageMetaData();
try {
metaData = header.ExtractMetaData();
} catch (Exception ex) {
Logger.Error(ex.Message);
}
return new Model.ImageData.ImageData(pixels, width, height, 16, isBayered, metaData);
}));
}
// Read a FITS file
public Bitmap ReadFile(string FileName)
{
Fits f2 = new Fits(FileName);
ImageHDU h2 = (ImageHDU)f2.ReadHDU();
Header hdr2 = h2.Header;
int BitPixLen = hdr2.GetIntValue("BITPIX");
int PixelWidth = hdr2.GetIntValue("NAXIS1");
int PixelHeight = hdr2.GetIntValue("NAXIS2");
object[] img = (object[])h2.Kernel;
uint[][] img1 = new uint[PixelHeight][];
byte[][] img2 = new byte[PixelHeight][];
//for (int i = 0; i < PixelHeight; i++)
// img2[i] = new byte[PixelWidth];
if (BitPixLen == 32)//int
{
//读出来又翻转，注意
uint MaxPixelValue = 0x00000000;
uint MinPixelValue = 0xFFFFFFFF;
for (int i = 0; i < PixelHeight; i++)
{
img1[i] = (uint[])img[i]; //img强制赋值给img1
img2[i] = new byte[PixelWidth];
for (int j = 0; j < PixelWidth; j++) //求最值
{
if (img1[i][j] > MaxPixelValue)
{
MaxPixelValue = img1[i][j];
}
else if ((img1[i][j] > 0) && (img1[i][j] < MinPixelValue))
{
MinPixelValue = img1[i][j];
}
}
}
//转换灰度图系数
double m = (MaxPixelValue - MinPixelValue) * 1.0 / 255;
for (int i = 0; i < PixelHeight; i++)
{
for (int j = 0; j < PixelWidth; j++)
{
if (img1[i][j] > 0)
{
double tf = (img1[i][j] - MinPixelValue) * 1.0 / m;
if (tf >= 255.0)
{
img2[i][j] = 255;
}
else
{
img2[i][j] = Convert.ToByte(tf);
}
}
}
}
}
//Bitmap bmp = ToGrayBitmap(img2, PixelWidth, PixelHeight);
//pictureBox1.Image = bmp;
return(ToGrayBitmap(img2, PixelWidth, PixelHeight));
}
