void DrawGist()
{
int[] Gist = new int[256];
int C;
for (int i = 0; i < Picture.Length; i += 3)
{
C = (Picture[i] + Picture[i + 1] + Picture[i + 2]) / 3;
Gist[C]++;
}
int[] GistM = new int[256];
Gist.CopyTo(GistM, 0);
int maxValue = GistM.Max <int>();
int height = 184;
double k = Convert.ToDouble(height) / maxValue;
var GistPic = new Bitmap(256, height);
/* using (Graphics g = Graphics.FromImage(GistPic))
* {
* Pen blackPen = new Pen(Color.Black, 1);
* var whiteBrush = Brushes.White;
* g.FillRectangle(whiteBrush, 0, 0, 256, height);
*
* for (int i=0; i<256;i++)
* {
* Point A = new Point(i, height-1);
* Point B = new Point(i, height - 1 - Convert.ToInt32(Gist[i]*k));
* g.DrawLine(blackPen, A, B);
* }
* GistPic.Save("1.jpg");
* }*/
BitImg.writeImageBytes(GistPic, Picture);
pictureBox2.Image = GistPic;
}
private void pictureBox1_Click(object sender, EventArgs e)
{
using (OpenFileDialog openFileDialog = new OpenFileDialog())
{
openFileDialog.InitialDirectory = "\\";
openFileDialog.Filter = "Image Files(*.BMP;*.JPG;*.GIF)|*.BMP;*.JPG;*.GIF|All files (*.*)|*.*";
openFileDialog.FilterIndex = 1;
openFileDialog.RestoreDirectory = true;
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
Img = Image.FromFile(openFileDialog.FileName);
pictureBox1.Image = Img;
pictureBox1.SizeMode = PictureBoxSizeMode.Zoom;
Bitmap bmp = new Bitmap(Img);
Picture = BitImg.getImgBytes(bmp);
label1.Visible = false;
DrawGist();
}
}
}
