// EDGE DETECTIONS
//add or remove the edge detection Kirsh
private void ToggleKirsch(object sender, EventArgs e)
{
if (checkBoxEdgeKirsh.Checked)
{
imageController.AddEdgeDetection(EDGE_KIRSCH);
}
else
{
imageController.RemoveEdgeDetection(EDGE_KIRSCH);
}
UpdatePreviewImage();
}