public async Task downloadLatestPhoto(int frameId)
{
var paths = await GoProControl.GetMediaList();
string path = paths[paths.Count - 1];
string url = dcimUrl + path;
String fileName = String.Format("{0}/{1:000}.png", snapshotsDir, frameId);
Image image = await GoProControl.GetImage(url);
var img = new Emgu.CV.Image <Emgu.CV.Structure.Bgr, byte>(new Bitmap(image));
double angle = checkBoxRotateCamera.Checked ? -90 : 0;
var rimg = img.Rotate(angle, new Emgu.CV.Structure.Bgr(0, 0, 0), false);
rimg.ROI = new Rectangle((rimg.Width - rimg.Height * targetWidth / targetHeight) / 2, 0, rimg.Height * targetWidth / targetHeight, rimg.Height);
var cropped = rimg.Copy();
var resized = cropped.Resize(targetWidth, targetHeight, Emgu.CV.CvEnum.Inter.Linear);
resized.Save(fileName);
rimg.Dispose();
img.Dispose();
cropped.Dispose();
resized.Dispose();
}
private void Worker_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e)
{
Image image = (Image)e.Argument;
var minSize = new Size(3840, 2160);
Size newSize;
if (image.Width < minSize.Width || image.Height < minSize.Height)
{
var ratio = Math.Max((double)minSize.Width / image.Width, (double)minSize.Height / image.Height);
newSize = new Size((int)(ratio * image.Width), (int)(ratio * image.Height));
}
else
{
newSize = image.Size;
}
var newRect = new Rectangle(Point.Empty, newSize);
Emgu.CV.Image <Emgu.CV.Structure.Bgr, byte> cvImage;
using (var bitmap = new Bitmap(newSize.Width, newSize.Height, PixelFormat.Format24bppRgb)) {
using (var graphics = Graphics.FromImage(bitmap)) {
graphics.CompositingQuality = CompositingQuality.HighQuality;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
using (var wrapMode = new ImageAttributes()) {
wrapMode.SetWrapMode(WrapMode.TileFlipXY);
graphics.DrawImage(image, newRect, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, wrapMode);
}
}
Invoke(new Action(() => {
if (screenshotViewer == null)
{
screenshotViewer = new ScreenshotViewer(this)
{
Top = Top, Left = Right
}
}
;
screenshotViewer.SetImage(new Bitmap(bitmap));
screenshotViewer.Show();
}));
var data = bitmap.LockBits(newRect, ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
var nBytes = data.Stride * data.Height;
cvImage = new Emgu.CV.Image <Emgu.CV.Structure.Bgr, byte>(newSize);
unsafe {
Buffer.MemoryCopy(data.Scan0.ToPointer(), cvImage.Mat.DataPointer.ToPointer(), nBytes, nBytes);
}
bitmap.UnlockBits(data);
}
if (sift == null)
{
sift = new Emgu.CV.Features2D.SIFT(edgeThreshold: 25, sigma: 1.2);
}
if (matcher == null)
{
var use_bf = true;
if (use_bf)
{
matcher = new Emgu.CV.Features2D.BFMatcher(Emgu.CV.Features2D.DistanceType.L2);
}
else
{
matcher = new Emgu.CV.Features2D.FlannBasedMatcher(new Emgu.CV.Flann.KdTreeIndexParams(5), new Emgu.CV.Flann.SearchParams());
}
}
if (heroDescriptors == null)
{
Invoke(new Action(() => {
screenshotViewer.SetProgress(Stage.LoadingData);
}));
heroDescriptors = loadDescriptors("portraits.zip");
bgnameDescriptors = loadDescriptors("bgnames.zip");
}
int nTotal = heroDescriptors.Count + bgnameDescriptors.Count;
int nCurrent = 0;
using (var kp = new Emgu.CV.Util.VectorOfKeyPoint())
using (var des = new Emgu.CV.Mat()) {
Invoke(new Action(() => {
screenshotViewer.SetProgress(Stage.ProcessingImage);
}));
sift.DetectAndCompute(cvImage, null, kp, des, false);
cvImage.Dispose();
var searchResults = new List <SearchResult>();
Invoke(new Action(() => {
screenshotViewer.SetProgress(0.0);
}));
foreach (var kvp in heroDescriptors)
{
using (var vMatches = new Emgu.CV.Util.VectorOfVectorOfDMatch()) {
matcher.KnnMatch(kvp.Value, des, vMatches, 2);
const float maxdist = 0.7f;
var matches = vMatches.ToArrayOfArray().Where(m => m[0].Distance < maxdist * m[1].Distance).ToList();
if (matches.Any())
{
searchResults.Add(new SearchResult(kvp.Key, matches, kp));
}
}
nCurrent++;
Invoke(new Action(() => {
screenshotViewer.SetProgress((double)nCurrent / nTotal);
}));
}
searchResults.Sort((a, b) => - a.Distance.CompareTo(b.Distance));
searchResults.RemoveAll(t => searchResults.Take(searchResults.IndexOf(t)).Select(u => u.Name).Contains(t.Name));
var bans_picks = searchResults.Take(16).OrderBy(t => t.Location.Y).ToList();
var bans = bans_picks.Take(6).OrderBy(t => t.Location.X).ToList();
var picks = bans_picks.Skip(6).OrderBy(t => t.Location.X).ToList();
var t1picks = picks.Take(5).OrderBy(t => t.Location.Y).ToList();
var t2picks = picks.Skip(5).OrderBy(t => t.Location.Y).ToList();
var bgSearchResults = new List <SearchResult>();
foreach (var kvp in bgnameDescriptors)
{
using (var vMatches = new Emgu.CV.Util.VectorOfVectorOfDMatch()) {
matcher.KnnMatch(kvp.Value, des, vMatches, 2);
const float maxdist = 0.7f;
var matches = vMatches.ToArrayOfArray().Where(m => m[0].Distance < maxdist * m[1].Distance).ToList();
if (matches.Any())
{
bgSearchResults.Add(new SearchResult(kvp.Key, matches, kp));
}
}
nCurrent++;
Invoke(new Action(() => {
screenshotViewer.SetProgress((double)nCurrent / nTotal);
}));
}
var bgSearchResult = bgSearchResults.OrderBy(t => - t.Distance).First();
Invoke(new Action(() => {
screenshotViewer.SetProgress(Stage.Complete);
screenshotViewer.SetSearchResults(bans_picks.ToArray(), bgSearchResult);
c_bg.Text = bgSearchResult.Name;
screenshotViewer.Show();
Focus();
}));
}
}
//główne operacje na obrazie
public void ocr()
{
//otworzenie pliku
FileStream srcstream = new FileStream(pic_file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
//stworzenie bitmapy
Bitmap source = new Bitmap(srcstream);
//zmiana ustawień webform
Panel1.Visible = false;
Image1.Dispose();
Label2.Text = "Processing...";
Panel3.Visible = true;
//Preperation code
Bitmap ext = source;
//AForge.Imaging.Filters.
//Przekształcenie obrazu na skalę odcieni szarości - testować dla obrazów o różnej kolorystyce(opracować system wyznaczania parametrów filtru na podstawie RGB zdjęcia)
AForge.Imaging.Filters.Grayscale grScl = new AForge.Imaging.Filters.Grayscale(0.2125, 0.0154, 0.0721 );
source = grScl.Apply(source);
//Zwiększenie kontrastu
AForge.Imaging.Filters.ContrastStretch conCor = new AForge.Imaging.Filters.ContrastStretch();
source = conCor.Apply(source);
//Wyostrzenie
AForge.Imaging.Filters.Sharpen shp = new AForge.Imaging.Filters.Sharpen();
source = shp.Apply(source);
//Segmentation code
bool procesed = false;
// Image2.Width = 350;
// Image2.Height = (int)((source.Height * 200) / source.Width);
try
{
Emgu.CV.Image<Bgr, Byte> to_rec = new Emgu.CV.Image<Bgr, byte>(source);
Do_ocr = new Tesseract("tessdata", "eng", Tesseract.OcrEngineMode.OEM_DEFAULT);
try
{
Do_ocr.Recognize<Bgr>(to_rec);
//recognizedText.Text = ocr.GetText();
PastOCRBox.Text = Do_ocr.GetText();
// StatusBox.Text = "Finished! Ready for next one...";
Do_ocr.Dispose();
to_rec.Dispose();
}
catch (Exception exp)
{
Label2.Text = "Recognition error! " + exp.Message;
Do_ocr.Dispose();
return;
}
}
catch (Exception exp)
{
Label2.Text = "OCR engine failed! " + exp.Message;
return;
}
//czyszczenie z plików tymczasowych
// source.Save("D:\\test.bmp");
// ext.Save("D:\\testcor.bmp");
source.Dispose();
srcstream.Close();
srcstream.Dispose();
//System.IO.File.Delete(pic_file);
System.IO.File.Delete(Server.MapPath("~/img/prev.bmp"));
System.IO.File.Delete(Server.MapPath("~/img/tmp.bmp"));
//przygotować wygląd strony po rozpoznawaniu
Panel3.Visible = false;
Label1.Visible = false;
Panel0.Visible = false;
Panel5.Visible = false;
Panel4.Visible = true;
}
private static void GrayValueTask()
{
while (true)
{
while (m_CheckList.Count > 0)
{
DataGridViewRow t_Checks = m_CheckList[0];
lock (m_Mutex)
{
string t_FolderPath = t_Checks.Cells["FolderPath"].Value.ToString();
string[] t_ImageFiles = System.IO.Directory.GetFiles(t_FolderPath);
foreach (string t_ImageFile in t_ImageFiles)
{
string[] t_ImageFileSplit = System.IO.Path.GetFileNameWithoutExtension(t_ImageFile).Split('_');
string t_StationNumber = t_ImageFileSplit[2];
if (t_ImageFileSplit[2].CompareTo("15") == 0)
{
t_StationNumber = t_ImageFileSplit[2] + "_" + t_ImageFileSplit[3];
}
string t_StationName = m_ImageNameMappings[t_StationNumber];
Point[] t_ROI = m_FixROILocations[t_StationName];
System.Drawing.Bitmap t_Bitmap = new Bitmap(t_ImageFile);
Emgu.CV.Mat t_Mat = Emgu.CV.CvInvoke.Imread(t_ImageFile, Emgu.CV.CvEnum.ImreadModes.AnyColor);
//Emgu.CV.CvInvoke.NamedWindow("A", Emgu.CV.CvEnum.NamedWindowType.FreeRatio);
double t_Average = 0.0;
if (t_Bitmap.PixelFormat == System.Drawing.Imaging.PixelFormat.Format8bppIndexed)
{
Emgu.CV.Image <Emgu.CV.Structure.Gray, byte> t_Image = new Emgu.CV.Image <Emgu.CV.Structure.Gray, byte>(t_Mat.Bitmap);
t_Image.ROI = new Rectangle(t_ROI[0].X, t_ROI[0].Y, t_ROI[1].X - t_ROI[0].X, t_ROI[1].Y - t_ROI[0].Y);
Emgu.CV.Structure.Gray t_AverageBGR = t_Image.GetAverage();
t_Average = t_AverageBGR.MCvScalar.V0;
t_Image.Dispose();
t_Image = null;
}
else
{
Emgu.CV.Image <Emgu.CV.Structure.Bgr, byte> t_Image = new Emgu.CV.Image <Emgu.CV.Structure.Bgr, byte>(t_Mat.Bitmap);
t_Image.ROI = new Rectangle(t_ROI[0].X, t_ROI[0].Y, t_ROI[1].X - t_ROI[0].X, t_ROI[1].Y - t_ROI[0].Y);
Emgu.CV.Structure.Bgr t_AverageBGR = t_Image.GetAverage();
t_Average = t_AverageBGR.MCvScalar.V2;
t_Image.Dispose();
t_Image = null;
}
t_Checks.Cells[t_StationName].Value = t_Average;
t_Mat.Dispose();
t_Mat = null;
t_Bitmap.Dispose();
t_Bitmap = null;
GC.Collect();
}
}
string t_ResultsString = string.Empty;
foreach (DataGridViewCell t_Check in t_Checks.Cells)
{
t_ResultsString += t_Check.Value + ",";
}
t_ResultsString = t_ResultsString.Remove(t_ResultsString.Length - 1, 1);
System.IO.File.AppendAllText("Results.csv", t_ResultsString);
System.IO.File.AppendAllText("Results.csv", System.Environment.NewLine);
m_CheckList.RemoveAt(0);
}
}
}
