form1.cs

c#写的程序

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace 基于伪彩的图像显示
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        /// <summary>
        /// //////////////////////////////////////////////////////////////////////////////变量定义
        /// </summary>
        public int[,] irontable = new int[256, 4]{
                                                                //热金属编码表
 {   0,  0,  0,0 }, {   0,  0, 30,0 }, {   0,  0, 34,0 }, {   0,  0, 38,0 }, //4
 {   0,  0, 43,0 }, {   0,  0, 47,0 }, {   0,  0, 51,0 }, {   0,  0, 55,0 }, //8
 {   0,  0, 60,0 }, {   0,  0, 64,0 }, {   0,  0, 68,0 }, {   0,  0, 72,0 }, //12
 {   0,  0, 77,0 }, {   0,  0, 81,0 }, {   0,  0, 85,0 }, {   0,  0, 89,0 }, //16
 {   0,  0, 94,0 }, {   3,  0, 98,0 }, {   6,  0,102,0 }, {   9,  0,106,0 }, //20
 {  12,  0,111,0 }, {  15,  0,115,0 }, {  18,  0,119,0 }, {  21,  0,123,0 }, //24
 {  24,  0,128,0 }, {  27,  0,132,0 }, {  30,  0,136,0 }, {  33,  0,140,0 }, //28
 {  36,  0,145,0 }, {  39,  0,149,0 }, {  42,  0,153,0 }, {  45,  0,157,0 }, //32
 {  48,  0,162,0 }, {  51,  0,166,0 }, {  54,  0,169,0 }, {  57,  0,173,0 }, //36
 {  60,  0,177,0 }, {  63,  0,180,0 }, {  66,  0,184,0 }, {  69,  0,187,0 }, //40
 {  72,  0,190,0 }, {  75,  0,194,0 }, {  78,  0,197,0 }, {  81,  0,200,0 }, //44
 {  84,  0,204,0 }, {  87,  0,207,0 }, {  90,  0,210,0 }, {  93,  0,214,0 }, //48
 {  96,  0,217,0 }, {  99,  0,220,0 }, { 102,  0,223,0 }, { 105,  0,227,0 }, //52
 { 108,  0,230,0 }, { 111,  0,229,0 }, { 114,  0,228,0 }, { 117,  0,228,0 }, //56
 { 120,  0,227,0 }, { 123,  0,226,0 }, { 126,  0,226,0 }, { 129,  0,225,0 }, //60
 { 132,  0,224,0 }, { 135,  0,223,0 }, { 138,  0,219,0 }, { 141,  0,216,0 }, //64
 { 144,  0,212,0 }, { 147,  0,208,0 }, { 150,  0,205,0 }, { 153,  0,201,0 }, //68
 { 156,  0,197,0 }, { 157,  0,194,0 }, { 159,  0,190,0 }, { 160,  0,186,0 }, //72
 { 162,  0,183,0 }, { 163,  0,179,0 }, { 165,  0,175,0 }, { 166,  0,172,0 }, //76
 { 167,  0,168,0 }, { 168,  0,164,0 }, { 170,  0,161,0 }, { 171,  0,157,0 }, //80
 { 173,  0,153,0 }, { 174,  0,150,0 }, { 176,  0,146,0 }, { 177,  0,142,0 }, //84
 { 178,  0,139,0 }, { 179,  0,135,0 }, { 181,  0,131,0 }, { 182,  0,127,0 }, //88
 { 184,  0,124,0 }, { 185,  0,120,0 }, { 187,  0,116,0 }, { 188,  0,113,0 }, //92
 { 189,  0,109,0 }, { 190,  0,105,0 }, { 192,  0,102,0 }, { 193,  0, 98,0 }, //96
 { 195,  0, 94,0 }, { 196,  0, 91,0 }, { 198,  0, 87,0 }, { 199,  0, 83,0 }, //100
 { 200,  0, 80,0 }, { 201,  0, 77,0 }, { 203,  3, 73,0 }, { 204,  6, 69,0 }, //104
 { 206,  8, 66,0 }, { 207, 11, 62,0 }, { 209, 14, 58,0 }, { 210, 17, 55,0 }, //108
 { 211, 19, 51,0 }, { 212, 22, 47,0 }, { 214, 25, 44,0 }, { 215, 28, 40,0 }, //112
 { 217, 30, 37,0 }, { 218, 33, 34,0 }, { 220, 36, 30,0 }, { 221, 39, 26,0 }, //116
 { 222, 41, 22,0 }, { 223, 44, 18,0 }, { 225, 47, 15,0 }, { 226, 50, 11,0 }, //120
 { 228, 52,  7,0 }, { 229, 55,  4,0 }, { 231, 58,  0,0 }, { 232, 61,  0,0 }, //124
 { 233, 63,  0,0 }, { 234, 66,  0,0 }, { 236, 69,  0,0 }, { 237, 72,  0,0 }, //128
 { 239, 74,  0,0 }, { 240, 77,  0,0 }, { 242, 80,  0,0 }, { 243, 83,  0,0 }, //132
 { 244, 85,  0,0 }, { 245, 88,  0,0 }, { 247, 91,  0,0 }, { 248, 94,  0,0 }, //136
 { 250, 96,  0,0 }, { 252, 99,  0,0 }, { 253,102,  0,0 }, { 254,105,  0,0 }, //140
 { 255,107,  0,0 }, { 255,109,  0,0 }, { 255,111,  0,0 }, { 255,112,  0,0 }, //144
 { 255,114,  0,0 }, { 255,116,  0,0 }, { 255,118,  0,0 }, { 255,119,  0,0 }, //148
 { 255,121,  0,0 }, { 255,123,  0,0 }, { 255,125,  0,0 }, { 255,126,  0,0 }, //152
 { 255,128,  0,0 }, { 255,130,  0,0 }, { 255,132,  0,0 }, { 255,133,  0,0 }, //156
 { 255,135,  0,0 }, { 255,137,  0,0 }, { 255,139,  0,0 }, { 255,140,  0,0 }, //160
 { 255,142,  0,0 }, { 255,144,  0,0 }, { 255,146,  0,0 }, { 255,147,  0,0 }, //164
 { 255,149,  0,0 }, { 255,151,  0,0 }, { 255,153,  0,0 }, { 255,154,  0,0 }, //168
 { 255,156,  0,0 }, { 255,158,  0,0 }, { 255,160,  0,0 }, { 255,161,  0,0 }, //172
 { 255,163,  0,0 }, { 255,165,  0,0 }, { 255,167,  0,0 }, { 255,168,  0,0 }, //176
 { 255,170,  0,0 }, { 255,172,  0,0 }, { 255,174,  0,0 }, { 255,175,  0,0 }, //180
 { 255,177,  0,0 }, { 255,179,  0,0 }, { 255,181,  0,0 }, { 255,182,  0,0 }, //184
 { 255,184,  0,0 }, { 255,186,  0,0 }, { 255,188,  0,0 }, { 255,189,  0,0 }, //188
 { 255,191,  0,0 }, { 255,193,  0,0 }, { 255,195,  0,0 }, { 255,196,  0,0 }, //192
 { 255,198,  0,0 }, { 255,200,  0,0 }, { 255,202,  0,0 }, { 255,203,  0,0 }, //196
 { 255,205,  0,0 }, { 255,207,  0,0 }, { 255,209,  0,0 }, { 255,210,  0,0 }, //200
 { 255,212,  0,0 }, { 255,214,  0,0 }, { 255,216,  0,0 }, { 255,217,  0,0 }, //204
 { 255,219,  0,0 }, { 255,221,  0,0 }, { 255,223,  0,0 }, { 255,224,  0,0 }, //208
 { 255,226,  0,0 }, { 255,228,  0,0 }, { 255,230,  0,0 }, { 255,231,  0,0 }, //212
 { 255,233,  0,0 }, { 255,235,  0,0 }, { 255,237,  0,0 }, { 255,238,  6,0 }, //216
 { 255,240, 13,0 }, { 255,242, 19,0 }, { 255,244, 26,0 }, { 255,245, 32,0 }, //220
 { 255,247, 39,0 }, { 255,249, 45,0 }, { 255,251, 52,0 }, { 255,253, 58,0 }, //224
 { 255,255, 65,0 }, { 255,255, 71,0 }, { 255,255, 78,0 }, { 255,255, 84,0 }, //228
 { 255,255, 90,0 }, { 255,255, 96,0 }, { 255,255,102,0 }, { 255,255,108,0 }, //232
 { 255,255,114,0 }, { 255,255,120,0 }, { 255,255,126,0 }, { 255,255,132,0 }, //236
 { 255,255,138,0 }, { 255,255,144,0 }, { 255,255,150,0 }, { 255,255,156,0 }, //240
 { 255,255,162,0 }, { 255,255,168,0 }, { 255,255,174,0 }, { 255,255,182,0 }, //244
 { 255,255,188,0 }, { 255,255,194,0 }, { 255,255,201,0 }, { 255,255,207,0 }, //248
 { 255,255,213,0 }, { 255,255,219,0 }, { 255,255,225,0 }, { 255,255,231,0 }, //252
 { 255,255,237,0 }, { 255,255,243,0 }, { 255,255,249,0 }, { 255,255,255,0 } //256
       
    };
        float max, min;                  //图像温度的最值
        TemTable temtable = new TemTable();             //用颜色饱和度临时模拟温度，此用于临时存放温度
       /// <summary>
       /// //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
       /// </summary>
       /// <param name="sender"></param>
       /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)   //打开一幅图像
        {
            openFileDialog1.ShowDialog();
            if (openFileDialog1.FileName == "")
                return;
            this.pictureBox1.Image = Bitmap.FromFile(openFileDialog1.FileName);
        }

        private void button2_Click(object sender, EventArgs e)   //保存显示的图像
        {
            this.saveFileDialog1.ShowDialog();
            if (this.saveFileDialog1.FileName.Trim() == "")
                return;
            this.pictureBox1.Image.Save(this.saveFileDialog1.FileName);

        }

       
        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            Bitmap Mybitmap = (Bitmap)this.pictureBox1.Image;                          //要处理的图像
            int bytes = Mybitmap.Width * Mybitmap.Height * 3;                         //数据数目
            byte[] rgbvalue = new byte[bytes];                                           //存放原始图像的颜色值320*240*3

            Rectangle rect = new Rectangle(pictureBox1.Location, pictureBox1.Size);
            BitmapData bmdata = Mybitmap.LockBits(rect, ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);   //图像颜色锁入内存
            IntPtr ptr = bmdata.Scan0;                  //图像首行地址
            Marshal.Copy(ptr, rgbvalue, 0, bytes);    //图像颜色值复制到处理数组
            ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

            this.comboBox1.Text = "";             //清空上次显示的信息
            string pal = this.comboBox1.SelectedItem.ToString(); //将选定的调色板名称显示在下拉列表里
            this.comboBox1.Text = pal;
            this.comboBox1.Refresh();
            max = temtable.table[0];
            min = temtable.table[0];              //图像温度的最大值最小值
            for (int i = 1; i < temtable.table.Length; i++)                   //默认以图象温度最大值，最小值为限，显示图像
            {
                if (temtable.table[i] > max)                                
                    max = temtable.table[i];
                if (temtable.table[i] < min)                                 
                    min = temtable.table[i];
            }
            label2.Text = max.ToString();             //温度上下限的显示
            label3.Text = min.ToString();
            label4.Text = "温度上限：" + max.ToString();
            label5.Text = "温度下限：" + min.ToString();
            trackBar1.Value = 50;          //默认最值分别处于trackBar中间，这样可调的空间大些，便于调节
            trackBar2.Value = 50;           //即trackBar1中间值为图像最大值，trackBar2中间值为图像最小值
            switch (pal)
            {
                case "灰度":                 //基于灰度伪彩编码的显示
                   // GreyTable greytable = new GreyTable();
                    ///////////////////////////////////////////////////灰度调色板颜色的显示
                    Bitmap greypal = new Bitmap(pictureBox2.Width, pictureBox2.Height);    //pictureBox2.Height=256
                    for (int i = 0; i < 256; i++)
                    {
                        for (int j = 0; j < pictureBox2.Width; j++)
                        {
                            greypal.SetPixel(j, i, Color.FromArgb(255 - i, 255 - i, 255 - i));         //直接赋值而不开辟新空间会快些
                        }
                    }
                    pictureBox2.Image = greypal;
                    ///////////////////////////////////////////////////////数据的处理
                    for (int i = 0; i < temtable.table.Length; i = i + 1)
                    {
                        int t = (int)((temtable.table[i] - min) * 1.0 / (max - min)*256);
                        if (t >= 255)
                            t = 255;
                        else if (t < 0)
                            t = 0;
                       rgbvalue[3 * i] = (byte)t;           //直接赋值而不开辟新空间会快些
                       rgbvalue[3 * i + 1] = (byte)t;
                       rgbvalue[3 * i + 2] = (byte)t;
                      //  Mybitmap.SetPixel(i%640, i / 640, Color.FromArgb(greytable.table[t, 0], greytable.table[t, 1], greytable.table[t,2]));
                      //用这条语句速度太慢
                    }
                    break;
                case "逆灰度":                //基于逆灰度伪彩编码的显示

                    ///////////////////////////////////////////////////逆灰度调色板颜色的显示
                    Bitmap congreypal = new Bitmap(pictureBox2.Width, pictureBox2.Height);    //pictureBox2.Height=256
                    for (int i = 0; i < 256; i++)
                    {
                        for (int j = 0; j < pictureBox2.Width; j++)
                        {
                            congreypal.SetPixel(j, i, Color.FromArgb( i,i,i));         //直接赋值而不开辟新空间会快些
                        }
                    }
                    pictureBox2.Image = congreypal;
                    ///////////////////////////////////////////////////////数据的处理
                    for (int i = 0; i < temtable.table.Length; i = i + 1)
                    {
                        int t = (int)((temtable.table[i] - min) * 1.0 / (max - min) * 256);
                        if (t >= 255)
                            t = 255;
                        else if (t < 0)
                            t = 0;
                        rgbvalue[3 * i] = (byte)(255 - t);           //直接赋值而不开辟新空间会快些
                        rgbvalue[3 * i + 1] = (byte)(255 - t);
                        rgbvalue[3 * i + 2] = (byte)(255 - t);
                    }
                    break;
                case "黄色":                 //基于黄色伪彩编码的显示
                    ///////////////////////////////////////////////////黄色饱和度调色板颜色的显示
                    Bitmap yellowpal = new Bitmap(pictureBox2.Width, pictureBox2.Height);    //pictureBox2.Height=256
                    for (int i = 0; i < 256; i++)
                    {
                        for (int j = 0; j < pictureBox2.Width; j++)
                        {
                            yellowpal.SetPixel(j, i, Color.FromArgb(255-i,255-i, 0));         //直接赋值而不开辟新空间会快些
                        }
                    }
                    pictureBox2.Image = yellowpal;
                    ///////////////////////////////////////////////////////数据的处理
                      for (int i = 0; i < temtable.table.Length; i = i + 1)
                     {
                         int t = (int)((temtable.table[i] - min) * 1.0 / (max - min) * 256);
                         if (t >= 255)
                             t = 255;
                         else if (t < 0)
                             t = 0;
                         rgbvalue[3 * i] = 0;           //直接赋值而不开辟新空间会快些
                         rgbvalue[3 * i + 1] = (byte)t;
                         rgbvalue[3 * i + 2] = (byte)t;
                     }
                     break;
                 case "热金属":               //基于热金属伪彩编码的显示
                     ///////////////////////////////////////////////////热金属调色板颜色的显示