public void cropSubImage(CvRect rect, CvImageWrapper croppedImage)
{
if (rect.x < 0 || rect.y < 0 ||
(rect.x + rect.width > this._size.Width) ||
(rect.y + rect.height > this._size.Height))
{
throw new Exception("invalid rect: " + rect);
}
cvSetImageROI(this._rawPtr, rect);
cvCopy(this._rawPtr, croppedImage._rawPtr, IntPtr.Zero);
cvResetImageROI(this._rawPtr);
}
public CvImageWrapper cropSubImage(CvRect rect)
{
Bitmap b = GetBitMap();
Bitmap b2 = new Bitmap(rect.width, rect.height, b.PixelFormat);
for (int x = 0; x < rect.width; x++)
{
for (int y = 0; y < rect.height; y++)
{
b2.SetPixel(x, y, b.GetPixel(x + rect.x, y + rect.y));
}
}
return(new CvImageWrapper(b2));
}
private static extern void cvSetImageROI(IntPtr img, CvRect rect);