/// <summary>
/// Retrieve a Gray image frame after Grab()
/// </summary>
/// <param name="image">The output image</param>
/// <param name="flag">retrieve flags</param>
/// <returns> A Gray image frame</returns>
public virtual bool Retrieve(IOutputArray image, int flag = 0)
{
if (FlipType == CvEnum.FlipType.None)
{
using (OutputArray oaImage = image.GetOutputArray())
return(CvInvoke.cveVideoCaptureRetrieve(Ptr, oaImage, flag));
}
else
{
using (Mat tmp = new Mat())
using (OutputArray oaTmp = tmp.GetOutputArray())
{
bool success = CvInvoke.cveVideoCaptureRetrieve(Ptr, oaTmp, flag);
if (success)
{
CvInvoke.Flip(tmp, image, FlipType);
}
return(success);
}
}
}
/// <summary>
/// Retrieve a Gray image frame after Grab()
/// </summary>
/// <param name="image">The output image</param>
/// <param name="channel">The channel to retrieve image</param>
/// <returns>True if the frame can be retrieved</returns>
public virtual bool Retrieve(IOutputArray image, int channel = 0)
{
if (FlipType == CvEnum.FlipType.None)
{
using (OutputArray oaImage = image.GetOutputArray())
return CvInvoke.cveVideoCaptureRetrieve(Ptr, oaImage, channel);
}
else
{
using (Mat tmp = new Mat())
using (OutputArray oaTmp = tmp.GetOutputArray())
{
bool success = CvInvoke.cveVideoCaptureRetrieve(Ptr, oaTmp, channel);
if (success)
CvInvoke.Flip(tmp, image, FlipType);
return success;
}
}
}