private void 直方图均衡化ToolStripMenuItem_Click(object sender, EventArgs e)
{
checkPictureBox1();
if (!valid)
{
return;
}
Bitmap original = new Bitmap(pictureBox1.Image);
pictureBox3.Image = GraphicClass.drawHistogram(original);
Bitmap result = GraphicClass.histogramEqualization(original);
pictureBox1.Image = GraphicClass.convertRGB2Gray(original);
pictureBox2.Image = result;
pictureBox4.Image = GraphicClass.drawHistogram(result);
}