private void tbBlur_ValueChanged(object sender, EventArgs e)
{
Program.step = (2 * tbBlur.Value) + 1;
RegionBlur = (Bitmap)RegionImgOverEtalon.Clone();
for (int i = 1; i <= tbBlur.Value; i++)
{
RegionBlur = Calculate.Blur((Bitmap)RegionBlur);
}
pb3.Image = RegionBlur;
Recalculation();
}