/// <summary>
/// 迈德威视相机采集到图像回调处理函数
/// </summary>
/// <param name="Grabber"></param>
/// <param name="pFrameBuffer"></param>
/// <param name="pFrameHead"></param>
/// <param name="Context"></param>
private void OnSDKImageGrabbed(IntPtr Grabber, IntPtr pFrameBuffer, ref tSdkFrameHead pFrameHead, IntPtr Context)
{
if (HoImage != null &&
HoImage.IsInitialized())
{
HoImage = null;
//System.Threading.Thread.Sleep(1);
//GC.Collect();
//GC.WaitForPendingFinalizers();
IsImageGrabbed = false;
}
#region 迈德威视相机SDK内部像素格式转换
// 由于黑白相机在相机打开后设置了ISP输出灰度图像
// 因此此处pFrameBuffer=8位灰度数据
// 否则会和彩色相机一样输出BGR24数据
// 彩色相机ISP默认会输出BGR24图像
// pFrameBuffer=BGR24数据
int w = pFrameHead.iWidth;
int h = pFrameHead.iHeight;
if (pFrameHead.uiMediaType == (uint)MVSDK.emImageFormat.CAMERA_MEDIA_TYPE_MONO8)
{
HalconDotNet.HOperatorSet.GenImage1(out HoImage, "byte", w, h, pFrameBuffer);
}
else if (pFrameHead.uiMediaType == (uint)MVSDK.emImageFormat.CAMERA_MEDIA_TYPE_BGR8)
{
HalconDotNet.HOperatorSet.GenImageInterleaved(out HoImage, pFrameBuffer, "bgr", w, h, -1, "byte", w, h, 0, 0, -1, 0);
}
MvApi.CameraClearBuffer(_deviceRef);
#endregion
if (HoImage != null &&
HoImage.IsInitialized())
{
System.Threading.Thread.Sleep(1);
IsImageGrabbed = true;
if (CameraImageGrabbedEvt != null)
{
CameraImageGrabbedEvt(Camera, HoImage);
}
}
}
