/// <summary>
/// Finds the smallest and largest X and Y coordinates of the pixels whose alpha channel exceeds the specified threshold.
/// </summary>
public PixelRect PreciseSize(int alphaThreshold = 0)
{
using (UseRead())
{
int left = PreciseLeft(alphaThreshold);
int right = PreciseRight(alphaThreshold);
int top = PreciseTop(alphaThreshold, left, right + 1);
int bottom = PreciseBottom(alphaThreshold, left, right + 1);
return(PixelRect.FromBounds(left, top, right, bottom));
}
}
