/// <summary>
/// 图像采集函数 ,线程
/// </summary>
private void ShowThread()
{
while (true)
{
if (frameList.Count == 0)
{
Thread.Sleep(10);
continue;
}
/* 图像队列取最新帧 */
mutex.WaitOne();
IGrabbedRawData frame = frameList.ElementAt(frameList.Count - 1);
frameList.Clear();
mutex.ReleaseMutex();
/* 主动调用回收垃圾 */
GC.Collect();
/* 控制显示最高帧率为25FPS */
if (false == IsTimeToDisplay())
{
continue;
}
try
{
/* 图像转码成bitmap图像 */
var bitmap = frame.ToBitmap(false);
HObject image = BitmapToHImage(bitmap);
OnImageAcqed(image);//触发事件
try
{
image.Dispose();
image = null;
}
catch { }
try
{
bitmap.Dispose();
bitmap = null;
}
catch { }
}
catch (Exception exception)
{
Catcher.Show(exception);
/* MessageBox.Show("Dahua:系统异常");
* Environment.Exit(0);*/
}
}
}
private void ShowThread() // 开启线程采集
{
try
{
while (m_bShowLoop)
{
if (m_frameList.Count == 0)
{
Thread.Sleep(10);
continue;
}
/* 图像队列取最新帧 */
m_mutex.WaitOne();
IGrabbedRawData frame = m_frameList.ElementAt(m_frameList.Count - 1);
m_frameList.Clear();
m_mutex.ReleaseMutex();
/* 主动调用回收垃圾 */
GC.Collect();
/* 控制显示最高帧率为25FPS */
if (false == isTimeToDisplay())
{
continue;
}
try
{
/* 图像转码成bitmap图像 */
var bitmap = frame.ToBitmap(false);
// Bitmap bit = bitmap.Clone();
m_bShowByGDI = true;
if (m_bShowByGDI)
{
HImage himage = BitmapToHImage(bitmap);
/// 添加事件通过绑定事件的方式进行图像传播
DoSomething(bitmap, himage);
}
}
catch (Exception exception)
{
Catcher.Show(exception);
}
}
}
catch (Exception)
{
throw;
}
}
/// <summary>
/// 码流捕获函数
/// </summary>
/// <param name="sender">事件投递方</param>
/// <param name="e">码流事件参数</param>
private void OnImageGrabbing(object sender, IGrabbedEventArg e)
{
// 停止采集
if (Interlocked.Read(ref _bCollection) == 0)
{
return;
}
// 更新样本数据，通知算法线程
if (Interlocked.CompareExchange(ref _bAlgorithmRunning, 1, 0) == 0)
{
_FrameData = null;
_FrameData = e.GrabResult;
_DetectBarCodeEvent.Set();
}
}
/* 转码显示线程 */
private void ShowThread()
{
while (m_bShowLoop)
{
if (m_frameList.Count == 0)
{
Thread.Sleep(10);
continue;
}
/* 图像队列取最新帧 */
m_mutex.WaitOne();
IGrabbedRawData frame = m_frameList.ElementAt(m_frameList.Count - 1);
m_frameList.Clear();
m_mutex.ReleaseMutex();
/* 主动调用回收垃圾 */
GC.Collect();
/* 控制显示最高帧率为25FPS */
if (false == isTimeToDisplay())
{
continue;
}
try
{
/* 图像转码成bitmap图像 */
bitmap = frame.ToBitmap(false);
m_bShowByGDI = true;
if (m_bShowByGDI)
{
/* 使用GDI绘图 */
if (_g == null)
{
_g = pbImage.CreateGraphics();
}
_g.DrawImage(bitmap, new Rectangle(0, 0, pbImage.Width, pbImage.Height),
new Rectangle(0, 0, bitmap.Width, bitmap.Height), GraphicsUnit.Pixel);
if (bitmap != null)
{
imgOri = bitmap;
}
// bitmap.Save(strSavePath + strFileName);
// bitmap.Dispose();
}
else
{
/* 使用控件绘图,会造成主界面卡顿 */
if (InvokeRequired)
{
BeginInvoke(new MethodInvoker(() =>
{
try
{
pbImage.Image = bitmap;
}
// save captured image
// bitmap.Save("C:\\Users\\rocki\\Desktop\\captured\\shot.jpg");
catch (Exception exception)
{
Catcher.Show(exception);
}
}));
}
}
}
catch (Exception exception)
{
Catcher.Show(exception);
}
}
}
private void LocalImageGrabbing()
{
List <Bitmap> bitmapList = new List <Bitmap>();
LocalFrameData bitmapData;
System.Drawing.Imaging.BitmapData bmpData;
try
{
if (MvBarCode.MvBarCodeGlobalVar.LocalImagePath == string.Empty)
{
Console.WriteLine("没有本地目录");
return;
}
string imgType = "*.bmp|*.png|*.jpg";
string[] ImgType = imgType.Split('|');
List <string> Dirs = new List <string>();
for (int i = 0; i < ImgType.Length; i++)
{
Dirs.AddRange(Directory.GetFiles(string.Format(MvBarCode.MvBarCodeGlobalVar.LocalImagePath), ImgType[i]));
}
//_FrameData
//string[] dirs = Directory.GetFiles();
foreach (var d in Dirs)
{
Bitmap img = new Bitmap(d);
bitmapList.Add(img);
}
foreach (var b in bitmapList)
{
Thread.Sleep(1000);
if (Interlocked.CompareExchange(ref _bAlgorithmRunning, 1, 0) == 0)
{
Rectangle rect = new Rectangle(0, 0, b.Width, b.Height);
bmpData = b.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, b.PixelFormat);
bitmapData = new LocalFrameData(b.Width, b.Height, b, bmpData.Scan0);
b.UnlockBits(bmpData);
_FrameData = bitmapData;
_DetectBarCodeEvent.Set();
}
}
Thread.Sleep(3000);
foreach (var b in bitmapList)
{
//b.Dispose();
}
}
catch (Exception e)
{
MvBarCode.MvBarCodeGlobalVar.Log.Error(e);
}
}
