public static bool MeanRemoval(Bitmap b, int nWeight /* default to 9*/)
{
ConvMatrix m = new ConvMatrix();
m.SetAll(-1);
m.Pixel = nWeight;
m.Factor = nWeight - 8;
return(BitmapFilter.Conv3x3(b, m));
}
public static bool Smooth(Bitmap b, int nWeight /* default to 1 */)
{
ConvMatrix m = new ConvMatrix();
m.SetAll(1);
m.Pixel = nWeight;
m.Factor = nWeight + 8;
return(BitmapFilter.Conv3x3(b, m));
}
public static bool EmbossLaplacian(Bitmap b)
{
ConvMatrix m = new ConvMatrix();
m.SetAll(-1);
m.TopMid = m.MidLeft = m.MidRight = m.BottomMid = 0;
m.Pixel = 4;
m.Offset = 127;
return(BitmapFilter.Conv3x3(b, m));
}
public static bool Sharpen(Bitmap b, int nWeight /* default to 11*/)
{
ConvMatrix m = new ConvMatrix();
m.SetAll(0);
m.Pixel = nWeight;
m.TopMid = m.MidLeft = m.MidRight = m.BottomMid = -2;
m.Factor = nWeight - 8;
return(BitmapFilter.Conv3x3(b, m));
}
public static bool GaussianBlur(Bitmap b, int nWeight /* default to 4*/)
{
ConvMatrix m = new ConvMatrix();
m.SetAll(1);
m.Pixel = nWeight;
m.TopMid = m.MidLeft = m.MidRight = m.BottomMid = 2;
m.Factor = nWeight + 12;
return(BitmapFilter.Conv3x3(b, m));
}
public static bool EdgeDetectQuick(Bitmap b)
{
ConvMatrix m = new ConvMatrix();
m.TopLeft = m.TopMid = m.TopRight = -1;
m.MidLeft = m.Pixel = m.MidRight = 0;
m.BottomLeft = m.BottomMid = m.BottomRight = 1;
m.Offset = 127;
return(BitmapFilter.Conv3x3(b, m));
}
private void OnFilterCustom(object sender, System.EventArgs e)
{
Convolution dlg = new Convolution();
if (DialogResult.OK == dlg.ShowDialog())
{
m_Undo = (Bitmap)m_Bitmap.Clone();
if (BitmapFilter.Conv3x3(m_Bitmap, dlg.Matrix))
{
this.Invalidate();
}
}
}
