private void 中点滤波器ToolStripMenuItem_Click(object sender, EventArgs e)
{
checkPictureBox1();
if (!valid)
{
return;
}
Bitmap bit = new Bitmap(pictureBox1.Image);
pictureBox2.Image = GraphicClass.greatValueFiltering(bit, 2);
pictureBox3.Image = GraphicClass.drawHistogram(new Bitmap(pictureBox1.Image));
pictureBox4.Image = GraphicClass.drawHistogram(new Bitmap(pictureBox2.Image));
}