www.pudn.com > PS.rar > HistogramWindow.cs
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//#####################################################################################
// Image Processing Lab
//
// Copyright ?Andrew Kirillov, 2005
// andrew.kirillov@gmail.com
//
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using WeifenLuo.WinFormsUI;
using AForge.Math;
using AForge.Imaging;
namespace IPLab
{
///
/// Summary description for HistogramWindow.
///
public class HistogramWindow : Content
{
private static Color[] colors = new Color[] {
Color.FromArgb(192, 0, 0),
Color.FromArgb(0, 192, 0),
Color.FromArgb(0, 0, 192),
Color.FromArgb(128, 128, 128),
};
private int currentImageHash = 0;
private ImageStatistics stat;
private IPLab.Histogram histogram;
private AForge.Math.Histogram activeHistogram = null;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.ComboBox channelCombo;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label meanLabel;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.Label stdDevLabel;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.Label medianLabel;
private System.Windows.Forms.Label label5;
private System.Windows.Forms.Label label6;
private System.Windows.Forms.Label label7;
private System.Windows.Forms.Label levelLabel;
private System.Windows.Forms.Label countLabel;
private System.Windows.Forms.Label percentileLabel;
private System.Windows.Forms.Label label8;
private System.Windows.Forms.Label label9;
private System.Windows.Forms.Label minLabel;
private System.Windows.Forms.Label maxLabel;
private System.Windows.Forms.CheckBox logCheck;
///
/// Required designer variable.
///
private System.ComponentModel.Container components = null;
public HistogramWindow( )
{
//
// Required for Windows Form Designer support
//
InitializeComponent( );
//
// TODO: Add any constructor code after InitializeComponent call
//
}
///
/// Clean up any resources being used.
///
protected override void Dispose( bool disposing )
{
if ( disposing )
{
if ( components != null )
{
components.Dispose( );
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent( )
{
System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(HistogramWindow));
this.label1 = new System.Windows.Forms.Label();
this.channelCombo = new System.Windows.Forms.ComboBox();
this.label2 = new System.Windows.Forms.Label();
this.meanLabel = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.stdDevLabel = new System.Windows.Forms.Label();
this.label4 = new System.Windows.Forms.Label();
this.medianLabel = new System.Windows.Forms.Label();
this.label5 = new System.Windows.Forms.Label();
this.label6 = new System.Windows.Forms.Label();
this.label7 = new System.Windows.Forms.Label();
this.levelLabel = new System.Windows.Forms.Label();
this.countLabel = new System.Windows.Forms.Label();
this.percentileLabel = new System.Windows.Forms.Label();
this.label8 = new System.Windows.Forms.Label();
this.label9 = new System.Windows.Forms.Label();
this.minLabel = new System.Windows.Forms.Label();
this.maxLabel = new System.Windows.Forms.Label();
this.logCheck = new System.Windows.Forms.CheckBox();
this.histogram = new IPLab.Histogram();
this.SuspendLayout();
//
// label1
//
this.label1.Location = new System.Drawing.Point(12, 8);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(36, 19);
this.label1.TabIndex = 1;
this.label1.Text = "通道:";
//
// channelCombo
//
this.channelCombo.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.channelCombo.Location = new System.Drawing.Point(54, 5);
this.channelCombo.Name = "channelCombo";
this.channelCombo.Size = new System.Drawing.Size(131, 20);
this.channelCombo.TabIndex = 3;
this.channelCombo.SelectedIndexChanged += new System.EventHandler(this.channelCombo_SelectedIndexChanged);
//
// label2
//
this.label2.Location = new System.Drawing.Point(6, 210);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(44, 13);
this.label2.TabIndex = 4;
this.label2.Text = "Mean:";
//
// meanLabel
//
this.meanLabel.Location = new System.Drawing.Point(60, 210);
this.meanLabel.Name = "meanLabel";
this.meanLabel.Size = new System.Drawing.Size(48, 15);
this.meanLabel.TabIndex = 5;
this.meanLabel.TextAlign = System.Drawing.ContentAlignment.TopRight;
//
// label3
//
this.label3.Location = new System.Drawing.Point(6, 232);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(56, 12);
this.label3.TabIndex = 6;
this.label3.Text = "Std Dev:";
//
// stdDevLabel
//
this.stdDevLabel.Location = new System.Drawing.Point(60, 232);
this.stdDevLabel.Name = "stdDevLabel";
this.stdDevLabel.Size = new System.Drawing.Size(48, 15);
this.stdDevLabel.TabIndex = 7;
this.stdDevLabel.TextAlign = System.Drawing.ContentAlignment.TopRight;
//
// label4
//
this.label4.Location = new System.Drawing.Point(6, 253);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(56, 13);
this.label4.TabIndex = 8;
this.label4.Text = "Median:";
//
// medianLabel
//
this.medianLabel.Location = new System.Drawing.Point(60, 253);
this.medianLabel.Name = "medianLabel";
this.medianLabel.Size = new System.Drawing.Size(48, 15);
this.medianLabel.TabIndex = 9;
this.medianLabel.TextAlign = System.Drawing.ContentAlignment.TopRight;
//
// label5
//
this.label5.Location = new System.Drawing.Point(119, 209);
this.label5.Name = "label5";
this.label5.Size = new System.Drawing.Size(53, 14);
this.label5.TabIndex = 10;
this.label5.Text = "Level:";
//
// label6
//
this.label6.Location = new System.Drawing.Point(119, 231);
this.label6.Name = "label6";
this.label6.Size = new System.Drawing.Size(64, 16);
this.label6.TabIndex = 11;
this.label6.Text = "Count:";
//
// label7
//
this.label7.Location = new System.Drawing.Point(119, 252);
this.label7.Name = "label7";
this.label7.Size = new System.Drawing.Size(71, 17);
this.label7.TabIndex = 12;
this.label7.Text = "Percentile:";
//
// levelLabel
//
this.levelLabel.Location = new System.Drawing.Point(197, 209);
this.levelLabel.Name = "levelLabel";
this.levelLabel.Size = new System.Drawing.Size(72, 16);
this.levelLabel.TabIndex = 13;
//
// countLabel
//
this.countLabel.Location = new System.Drawing.Point(197, 231);
this.countLabel.Name = "countLabel";
this.countLabel.Size = new System.Drawing.Size(72, 16);
this.countLabel.TabIndex = 14;
//
// percentileLabel
//
this.percentileLabel.Location = new System.Drawing.Point(197, 252);
this.percentileLabel.Name = "percentileLabel";
this.percentileLabel.Size = new System.Drawing.Size(72, 16);
this.percentileLabel.TabIndex = 15;
//
// label8
//
this.label8.Location = new System.Drawing.Point(6, 275);
this.label8.Name = "label8";
this.label8.Size = new System.Drawing.Size(36, 15);
this.label8.TabIndex = 16;
this.label8.Text = "Min:";
//
// label9
//
this.label9.Location = new System.Drawing.Point(6, 296);
this.label9.Name = "label9";
this.label9.Size = new System.Drawing.Size(36, 15);
this.label9.TabIndex = 17;
this.label9.Text = "Max:";
//
// minLabel
//
this.minLabel.Location = new System.Drawing.Point(60, 275);
this.minLabel.Name = "minLabel";
this.minLabel.Size = new System.Drawing.Size(48, 15);
this.minLabel.TabIndex = 18;
this.minLabel.TextAlign = System.Drawing.ContentAlignment.TopRight;
//
// maxLabel
//
this.maxLabel.Location = new System.Drawing.Point(60, 296);
this.maxLabel.Name = "maxLabel";
this.maxLabel.Size = new System.Drawing.Size(48, 15);
this.maxLabel.TabIndex = 19;
this.maxLabel.TextAlign = System.Drawing.ContentAlignment.TopRight;
//
// logCheck
//
this.logCheck.Location = new System.Drawing.Point(191, 9);
this.logCheck.Name = "logCheck";
this.logCheck.Size = new System.Drawing.Size(60, 17);
this.logCheck.TabIndex = 20;
this.logCheck.Text = "Log";
this.logCheck.CheckedChanged += new System.EventHandler(this.logCheck_CheckedChanged);
//
// histogram
//
this.histogram.AllowSelection = true;
this.histogram.Location = new System.Drawing.Point(6, 32);
this.histogram.Name = "histogram";
this.histogram.Size = new System.Drawing.Size(263, 175);
this.histogram.TabIndex = 0;
this.histogram.SelectionChanged += new IPLab.Histogram.HistogramEventHandler(this.histogram_SelectionChanged);
this.histogram.PositionChanged += new IPLab.Histogram.HistogramEventHandler(this.histogram_PositionChanged);
//
// HistogramWindow
//
this.AllowedStates = ((WeifenLuo.WinFormsUI.ContentStates)(((WeifenLuo.WinFormsUI.ContentStates.Float | WeifenLuo.WinFormsUI.ContentStates.DockLeft)
| WeifenLuo.WinFormsUI.ContentStates.DockRight)));
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(325, 330);
this.Controls.Add(this.logCheck);
this.Controls.Add(this.maxLabel);
this.Controls.Add(this.minLabel);
this.Controls.Add(this.label9);
this.Controls.Add(this.label8);
this.Controls.Add(this.percentileLabel);
this.Controls.Add(this.countLabel);
this.Controls.Add(this.levelLabel);
this.Controls.Add(this.label7);
this.Controls.Add(this.label6);
this.Controls.Add(this.label5);
this.Controls.Add(this.medianLabel);
this.Controls.Add(this.label4);
this.Controls.Add(this.stdDevLabel);
this.Controls.Add(this.label3);
this.Controls.Add(this.meanLabel);
this.Controls.Add(this.label2);
this.Controls.Add(this.label1);
this.Controls.Add(this.channelCombo);
this.Controls.Add(this.histogram);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
this.HideOnClose = true;
this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
this.MaximizeBox = false;
this.MinimizeBox = false;
this.MinimumSize = new System.Drawing.Size(331, 302);
this.Name = "HistogramWindow";
this.ShowHint = WeifenLuo.WinFormsUI.DockState.DockRight;
this.ShowInTaskbar = false;
this.Text = "图像直方图";
this.ResumeLayout(false);
}
#endregion
// Gather image statistics
public void GatherStatistics( Bitmap image )
{
// avoid calculation in the case of the same image
if ( image != null )
{
if ( currentImageHash == image.GetHashCode( ) )
return;
currentImageHash = image.GetHashCode( );
}
if ( image != null )
System.Diagnostics.Debug.WriteLine( "=== Gathering histogram" );
// busy
Capture = true;
Cursor = Cursors.WaitCursor;
// get statistics
stat = ( image == null ) ? null : new ImageStatistics( image );
// free
Cursor = Cursors.Arrow;
Capture = false;
// clean combo
channelCombo.Items.Clear( );
channelCombo.Enabled = false;
if ( stat != null )
{
if ( !stat.IsGrayscale )
{
// RGB picture
channelCombo.Items.AddRange( new object[] { "Red", "Green", "Blue" } );
channelCombo.Enabled = true;
}
else
{
// grayscale picture
channelCombo.Items.Add( "Gray" );
}
channelCombo.SelectedIndex = 0;
}
else
{
histogram.Values = null;
meanLabel.Text = String.Empty;
stdDevLabel.Text = String.Empty;
medianLabel.Text = String.Empty;
minLabel.Text = String.Empty;
maxLabel.Text = String.Empty;
levelLabel.Text = String.Empty;
countLabel.Text = String.Empty;
percentileLabel.Text = String.Empty;
}
}
// selection changed in channels combo
private void channelCombo_SelectedIndexChanged( object sender, System.EventArgs e )
{
if ( stat != null )
{
SwitchChannel( ( stat.IsGrayscale ) ? 3 : channelCombo.SelectedIndex );
}
}
// Switch channel
public void SwitchChannel( int channel )
{
if ( ( channel >= 0 ) && ( channel <= 2 ) )
{
if ( !stat.IsGrayscale )
{
histogram.Color = colors[channel];
activeHistogram = ( channel == 0 ) ? stat.Red : ( channel == 1 ) ? stat.Green : stat.Blue;
}
}
else if ( channel == 3 )
{
if ( stat.IsGrayscale )
{
histogram.Color = colors[3];
activeHistogram = stat.Gray;
}
}
if ( activeHistogram != null )
{
histogram.Values = activeHistogram.Values;
meanLabel.Text = activeHistogram.Mean.ToString( "F2" );
stdDevLabel.Text = activeHistogram.StdDev.ToString( "F2" );
medianLabel.Text = activeHistogram.Median.ToString( );
minLabel.Text = activeHistogram.Min.ToString( );
maxLabel.Text = activeHistogram.Max.ToString( );
}
}
// Cursor position changed over the hostogram
private void histogram_PositionChanged( object sender, IPLab.HistogramEventArgs e )
{
int pos = e.Position;
if ( pos != -1 )
{
levelLabel.Text = pos.ToString( );
countLabel.Text = activeHistogram.Values[pos].ToString( );
percentileLabel.Text = ( (float) activeHistogram.Values[pos] * 100 / stat.PixelsCount ).ToString( "F2" );
}
else
{
levelLabel.Text = "";
countLabel.Text = "";
percentileLabel.Text = "";
}
}
// Selection changed in the hostogram
private void histogram_SelectionChanged( object sender, IPLab.HistogramEventArgs e )
{
int min = e.Min;
int max = e.Max;
int count = 0;
levelLabel.Text = min.ToString( ) + "..." + max.ToString( );
// count pixels
for ( int i = min; i <= max; i++ )
{
count += activeHistogram.Values[i];
}
countLabel.Text = count.ToString( );
percentileLabel.Text = ( (float) count * 100 / stat.PixelsCount ).ToString( "F2" );
}
// On "Log" check - switch mode
private void logCheck_CheckedChanged( object sender, System.EventArgs e )
{
histogram.LogView = logCheck.Checked;
}
}
}