- iplab_src.zip
- iplab_src
- icons
- about.gif
- clone.gif
- convolution.gif
- copy.gif
- cut.gif
- disk.gif
- fit_to_size.gif
- folder_out.gif
- fourier.gif
- grayscale.gif
- histogram_window.gif
- levels.gif
- morphology.gif
- paste.gif
- pie-chart.gif
- resize.gif
- rotate.gif
- threshold.gif
- view_1_1.gif
- zoom_in.gif
- zoom_out.gif
- iplab
- iplab_demo.zip
- iplab_demo
- AForge.dll
- AForge.Imaging.chm
- AForge.Imaging.dll
- AForge.Math.dll
- DockingToolbar.dll
- iplab.exe
- SourceGrid2.dll
- SourceLibrary.dll
- WeifenLuo.WinFormsUI.dll
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// Image Processing Lab
//
// Copyright � Andrew Kirillov, 2005
// andrew.kirillov@gmail.com
//
using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
namespace IPLab
{
// Events arguments
public class HistogramEventArgs : EventArgs
{
private int min, max;
// Constructor
public HistogramEventArgs( int pos )
{
this.min = pos;
}
public HistogramEventArgs( int min, int max )
{
this.min = min;
this.max = max;
}
// Min property
public int Min
{
get { return min; }
}
// Max property
public int Max
{
get { return max; }
}
// Position property
public int Position
{
get { return min; }
}
}
/// <summary>
/// Summary description for ColorHistogram.
/// </summary>
public class Histogram : System.Windows.Forms.Control
{
private Color color = Color.Black;
private int width = 256;
private int height = 150;
private bool log = false;
private int[] values;
private int max;
private double maxLog;
private bool allowSelection = false;
private Pen blackPen = new Pen( Color.Black, 1 );
private Pen whitePen = new Pen( Color.White, 1 );
private Pen drawPen = new Pen( Color.Black );
private bool tracking = false;
private bool over = false;
private int start, stop;
// Color property
[DefaultValue( typeof( Color ), "Black" )]
public Color Color
{
get { return color; }
set
{
color = value;
drawPen.Dispose( );
drawPen = new Pen( color );
Invalidate( );
}
}
// Width property
[DefaultValue( 256 )]
public int HistogramWidth
{
get { return width; }
set
{
width = value;
Invalidate( );
}
}
// Height property
[DefaultValue( 150 )]
public int HistogramHeight
{
get { return height; }
set
{
height = value;
Invalidate( );
}
}
// Allow selection property
[DefaultValue( false )]
public bool AllowSelection
{
get { return allowSelection; }
set { allowSelection = value; }
}
// LogView property
[DefaultValue( false )]
public bool LogView
{
get { return log; }
set
{
log = value;
Invalidate( );
}
}
// Values property
[Browsable( false )]
public int[] Values
{
set
{
values = value;
if ( values != null )
{
// get the max
max = 0;
foreach ( int v in values )
{
if ( v > max )
{
max = v;
maxLog = Math.Log10( max );
}
}
}
Invalidate( );
}
}
// events
public delegate void HistogramEventHandler( object sender, HistogramEventArgs e );
public event HistogramEventHandler PositionChanged;
public event HistogramEventHandler SelectionChanged;
// Constructor
public Histogram( )
{
InitializeComponent( );
SetStyle( ControlStyles.AllPaintingInWmPaint | ControlStyles.ResizeRedraw |
ControlStyles.DoubleBuffer | ControlStyles.UserPaint, true );
}
// Dispose
protected override void Dispose( bool disposing )
{
if ( disposing )
{
blackPen.Dispose( );
whitePen.Dispose( );
drawPen.Dispose( );
}
base.Dispose( disposing );
}
// Init component
private void InitializeComponent( )
{
//
// Histogram
//
this.MouseUp += new System.Windows.Forms.MouseEventHandler( this.Histogram_MouseUp );
this.MouseMove += new System.Windows.Forms.MouseEventHandler( this.Histogram_MouseMove );
this.MouseLeave += new System.EventHandler( this.Histogram_MouseLeave );
this.MouseDown += new System.Windows.Forms.MouseEventHandler( this.Histogram_MouseDown );
}
// Paint control
protected override void OnPaint( PaintEventArgs pe )
{
Graphics g = pe.Graphics;
int x = ( ClientRectangle.Right - width ) / 2;
int y = 5;
int l;
// draw rectangle around the image
g.DrawRectangle( blackPen, x - 1, y - 1, width + 1, height + 1 );
if ( values != null )
{
int count = Math.Min( values.Length, width );
int start = Math.Min( this.start, this.stop );
int stop = Math.Max( this.start, this.stop );
if ( tracking )
{
// fill region of selection
Brush brush = new SolidBrush( Color.FromArgb( 92, 92, 92 ) );
g.FillRectangle( brush, x + start, y, Math.Abs( start - stop ), height );
brush.Dispose( );
}
// draw histogram
for ( int i = 0; i < count; i++ )
{
if ( log )
{
l = ( values[i] == 0 ) ? 0 : (int) ( Math.Log10( values[i] ) * height / maxLog );
}
else
{
l = (int) ( values[i] * height / max );
}
if ( l != 0 )
{
g.DrawLine( ( ( tracking ) && ( i >= start ) && ( i <= stop ) ) ? whitePen : drawPen,
new Point( x + i, y + height - 1 ),
new Point( x + i, y + height - l )
);
}
}
}
// Calling the base class OnPaint
base.OnPaint( pe );
}
// On mouse down
private void Histogram_MouseDown( object sender, System.Windows.Forms.MouseEventArgs e )
{
if ( ( allowSelection ) && ( values != null ) )
{
int x = ( ClientRectangle.Right - width ) / 2;
int y = 5;
if ( ( e.X >= x ) && ( e.Y >= y ) && ( e.X < x + width ) && ( e.Y < y + height ) )
{
// start selection
tracking = true;
start = e.X - x;
this.Capture = true;
}
}
}
// On mouse up
private void Histogram_MouseUp( object sender, System.Windows.Forms.MouseEventArgs e )
{
if ( tracking )
{
// stop selection
tracking = false;
this.Capture = false;
Invalidate( );
}
}
// On mouse move
private void Histogram_MouseMove( object sender, System.Windows.Forms.MouseEventArgs e )
{
if ( ( allowSelection ) && ( values != null ) )
{
int x = ( ClientRectangle.Right - width ) / 2;
int y = 5;
if ( !tracking )
{
if ( ( e.X >= x ) && ( e.Y >= y ) && ( e.X < x + width ) && ( e.Y < y + height ) )
{
over = true;
// moving over
this.Cursor = Cursors.Cross;
// notify parent
if ( PositionChanged != null )
PositionChanged( this, new HistogramEventArgs( e.X - x ) );
}
else
{
this.Cursor = Cursors.Default;
if ( over )
{
over = false;
// notify parent
if ( PositionChanged != null )
PositionChanged( this, new HistogramEventArgs( -1 ) );
}
}
}
else
{
// selecting region
stop = e.X - x;
stop = Math.Min( stop, 255 );
stop = Math.Max( stop, 0 );
Invalidate( );
// notify parent
if ( SelectionChanged != null )
SelectionChanged( this, new HistogramEventArgs( Math.Min( start, stop ), Math.Max( start, stop ) ) );
}
}
}
// On mouse leave
private void Histogram_MouseLeave( object sender, System.EventArgs e )
{
if ( ( allowSelection ) && ( values != null ) && ( !tracking ) )
{
// notify parent
if ( PositionChanged != null )
PositionChanged( this, new HistogramEventArgs( -1 ) );
}
}
}
}
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Started software development at about 15 years old and it seems like now it lasts most part of my life. Fortunately did not spend too much time with Z80 and BK0010 and switched to 8086 and further. Similar with programming languages – luckily managed to get away from BASIC and Pascal to things like Assembler, C, C++ and then C#. Apart from daily programming for food, do it also for hobby, where mostly enjoy areas like Computer Vision, Robotics and AI. This led to some open source stuff like
AForge.NET,
Computer Vision Sandbox,
cam2web,
ANNT, etc.