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Use Task To Make UI More Responsive In Event handler: PlateCamera_OnOneVideoFrameRequested.

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DucDangAnh 2020-06-18 02:29:03 +07:00
parent b731d24880
commit 5d09d95f90
1 changed files with 28 additions and 26 deletions
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54
AIParkingApplication/LaneIn.cs
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@ -3,6 +3,7 @@ using OpenCvSharp.Extensions;
using System; using System;
using System.Drawing; using System.Drawing;
using System.IO; using System.IO;
using System.Threading.Tasks;
using System.Windows.Forms; using System.Windows.Forms;
namespace AIParkingApplication namespace AIParkingApplication
@ -44,37 +45,38 @@ namespace AIParkingApplication
private void PlateCamera_OnOneVideoFrameRequested(Mat videoFrame) private void PlateCamera_OnOneVideoFrameRequested(Mat videoFrame)
{ {
Cv2.Resize(videoFrame, videoFrame, new OpenCvSharp.Size(1280, 720)); Task.Factory.StartNew(new Action(async () =>
Mat result = squarePlateDetector.DetectPlate(videoFrame);
Cv2.Resize(result, result, new OpenCvSharp.Size(272, 272));
var response = Util.SendEngineRequestAsync(result, PlateType.Square);
Bitmap resultPlateImage;
OcrResult ocrResult = response.Result;
if (!string.IsNullOrEmpty(ocrResult.Ocr) && !string.IsNullOrEmpty(ocrResult.Plate))
{ {
var imageData = Convert.FromBase64String(ocrResult.Plate); Cv2.Resize(videoFrame, videoFrame, new OpenCvSharp.Size(1280, 720));
using (var ms = new MemoryStream(imageData)) Mat result = squarePlateDetector.DetectPlate(videoFrame);
Cv2.Resize(result, result, new OpenCvSharp.Size(272, 272));
OcrResult ocrResult = await Util.SendEngineRequestAsync(result, PlateType.Square);
Bitmap resultPlateImage;
if (!string.IsNullOrEmpty(ocrResult.Ocr) && !string.IsNullOrEmpty(ocrResult.Plate))
{ {
resultPlateImage = new Bitmap(ms); var imageData = Convert.FromBase64String(ocrResult.Plate);
using (var ms = new MemoryStream(imageData))
{
resultPlateImage = new Bitmap(ms);
}
}
else
{
resultPlateImage = result.ToBitmap();
} }
}
else
{
resultPlateImage = result.ToBitmap();
}
lblPlateString.Invoke(new Action(() =>
{
lblPlateString.Text = ocrResult.Ocr;
}));
lblPlateString.Invoke(new Action(() => pictureBoxPlateImage.Invoke(new Action(() =>
{ {
lblPlateString.Text = ocrResult.Ocr; pictureBoxPlateImage.Image?.Dispose();
})); pictureBoxPlateImage.Image = resultPlateImage;
}));
pictureBoxPlateImage.Invoke(new Action(() =>
{
pictureBoxPlateImage.Image?.Dispose();
pictureBoxPlateImage.Image = resultPlateImage;
})); }));
} }