public Bitmap PgmToBitmap(PgmImage pgmImage)
{
if (pgmImage != null && pgmImage.MagicNumber == "P2")
{
int width = pgmImage.Width;
int height = pgmImage.Height;
Bitmap result = new Bitmap(width, height);
Graphics gr = Graphics.FromImage(result);
int pixel = 0;
for (int i = 0; i < pgmImage.Height; ++i)
{
for (int j = 0; j < pgmImage.Width; ++j)
{
int pixelColor = pgmImage.Data[pixel++];
Color c = Color.FromArgb(pixelColor, pixelColor, pixelColor);
SolidBrush sb = new SolidBrush(c);
gr.FillRectangle(sb, j, i, 1, 1);
}
}
return(result);
}
return(null);
}
private void btnLoadSecondImage_Click(object sender, EventArgs e)
{
DialogResult dlgResult = openFileDialog1.ShowDialog();
if (dlgResult == DialogResult.OK)
{
try
{
pgmOriginalImageTwo = new PgmImage(openFileDialog1.FileName);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
pbSecondImage.Image = PgmToBitmap(pgmOriginalImageTwo);
if (pbSecondImage.Image != null)
{
inputFileNameTwo = openFileDialog1.FileName;
if (inputFileNameOne != null)
{
btnShowResult.Enabled = true;
}
else
{
btnShowResult.Enabled = false;
}
}
else
{
inputFileNameTwo = null;
}
}
}
private void btnShowResult_Click(object sender, EventArgs e)
{
Cursor.Current = Cursors.WaitCursor;
pgmResultImage = null;
int width = pgmOriginalImageOne.Width;
int height = pgmOriginalImageOne.Height;
if (width > pgmOriginalImageTwo.Width)
{
width = pgmOriginalImageTwo.Width;
}
if (height > pgmOriginalImageTwo.Height)
{
height = pgmOriginalImageTwo.Height;
}
pgmResultImage = new PgmImage(width, height, "P2", "", Int32.MinValue);
int rCounter = 0;
int fCounter = 0;
int sCounter = 0;
for (int i = 0; i < pgmResultImage.Height; i++)
{
for (int j = 0; j < pgmResultImage.Width; j++)
{
pgmResultImage.Data[rCounter] = (byte)((pgmOriginalImageOne.Data[fCounter] + pgmOriginalImageTwo.Data[sCounter]) / 2);
if (pgmResultImage.MaxVal < pgmResultImage.Data[rCounter])
{
pgmResultImage.MaxVal = pgmResultImage.Data[rCounter];
}
rCounter++;
fCounter++;
sCounter++;
}
fCounter += (pgmOriginalImageOne.Width - pgmResultImage.Width);
sCounter += (pgmOriginalImageTwo.Width - pgmResultImage.Width);
}
pbResultImage.Image = PgmToBitmap(pgmResultImage);
btnSave.Enabled = true;
Cursor.Current = Cursors.Default;
}
