private void openMenuItem_Click(object sender, EventArgs e)
{
this.originalImage = FileIo.OpenFile();
if (this.originalImage != null)
{
this.originalImageBox.Image = (Image)this.originalImage.Clone();
this.enableBlockMosaicControls();
this.enablePictureMosaicControls();
this.mosaicImageBox.Image = null;
}
}