///////////////////////////////////////////////////////////////////////////////////////////
// Construct / Destruct
// ====================================================================
// Description: Constructor
// Return: void
public BinaryTree()
// ====================================================================
{
m_pLeft = null;
m_pRight = null;
Empty();
}
// ====================================================================
// Description:
// Return:
public void Empty()
// ====================================================================
{
if ( m_pLeft != null )
{
m_pLeft = null;
}
if ( m_pRight != null )
{
m_pRight = null;
}
m_lItem = 0;
m_lCount = 0;
}
///////////////////////////////////////////////////////////////////////////////////////////
// Private
// ====================================================================
// Description: built a histogram
// Return: void
private void BuiltHist ()
// ====================================================================
{
BinaryTree tree = new BinaryTree();
Bitmap bmp = (Bitmap)m_Orig.m_Img;
BitmapData data = bmp.LockBits( new Rectangle( 0 , 0 , bmp.Width , bmp.Height ) ,
ImageLockMode.ReadWrite , PixelFormat.Format24bppRgb );
ulong item = 0;
MessageBoxButtons buttons = MessageBoxButtons.YesNo;
string message = "Errored";
/* built binary tree */
unsafe
{
byte* ptr = ( byte* )( data.Scan0 );
for ( int y = 0; y < bmp.Height; y ++ )
{
for ( int x = 0; x < bmp.Width; x ++ )
{
byte b = *ptr; ptr ++;
byte g = *ptr; ptr ++;
byte r = *ptr; ptr ++;
item = ((ulong)r) << 24;
item += ((ulong)g) << 16;
item += ((ulong)b) << 8;
if ( tree.Insert(item) == false )
{
MessageBox.Show (this, message, null, buttons,
MessageBoxIcon.Error, MessageBoxDefaultButton.Button1,
MessageBoxOptions.RightAlign);
break;
}
}
ptr += data.Stride - data.Width * 3;
}
}
bmp.UnlockBits(data);
/* Find size of histogram */
m_lSize = tree.NumEntries();
m_RGBVol = new int[m_lSize * 4];
m_XYZCVol = new double[m_lSize * 4];
/* Get the histogram */
tree.Print ( m_RGBVol, 0 );
for ( ulong i = 0; i < m_lSize; i ++ )
{
for ( ulong j = 0; j < 3; j ++ )
{
m_XYZCVol[i*4+j] = m_RGBVol[i*4+j] - 128.0;
}
}
}
///////////////////////////////////////////////////////////////////////////////////////////
// Insert / Remove / Print
// ====================================================================
// Description:
// Return:
public bool Insert ( ulong item )
// ====================================================================
{
if ( m_lCount == 0 )
{
m_lItem = item;
m_lCount ++;
return true;
}
else if ( item == m_lItem )
{
m_lCount ++;
return true;
}
else if ( item < m_lItem )
{
if ( m_pLeft == null )
{
m_pLeft = new BinaryTree();
if ( m_pLeft == null )
return false;
}
return ( m_pLeft.Insert ( item ) );
}
else if ( m_lItem < item )
{
if ( m_pRight == null )
{
m_pRight = new BinaryTree ();
if ( m_pRight == null )
return false;
}
return ( m_pRight.Insert ( item ) );
}
return false;
}