private void GrayScale_Click(object sender, EventArgs e)
{
tmp = img.Clone();
tmp = ImageOperation.GrayScale(tmp);
pictureBox2.Image = tmp.bitmap;
generateHistogram(img, chart1);
generateHistogram(tmp, chart2);
}
private void GrayScale_Click(object sender, EventArgs e)
{
MDIForm f = ((MDIForm)ActiveMdiChild);
f.img = ImageOperation.GrayScale(f.img);
//f.UpdateTMP();
generateHistogram(f.img, chart1);
//generateHistogram(f.tmp, chart2);
}