遥感图像处理课程设计代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using OSGeo.GDAL;

namespace RS
{

    public partial class Classification : Form
    {
        public Classification（）
        {
            InitializeComponent（）;
        }

        public Bitmap GetRGBImage（OSGeo.GDAL.Dataset ds1 Rectangle showRect1 int[] bandlist1）
        {
            int imgWidth = ds1.RasterXSize;   //影像宽  
            int imgHeight = ds1.RasterYSize;  //影像高  

            float ImgRatio = imgWidth / （float）imgHeight;  //影像宽高比  

            //获取显示控件大小  
            int BoxWidth = showRect1.Width;
            int BoxHeight = showRect1.Height;

            float BoxRatio = imgWidth / （float）imgHeight;  //显示控件宽高比  

            //计算实际显示区域大小，防止影像畸变显示  
            int BufferWidth BufferHeight;
            if （BoxRatio >= ImgRatio）
            {
                BufferHeight = BoxHeight;
                BufferWidth = （int）（BoxHeight * ImgRatio）;
            }
            else
            {
                BufferWidth = BoxWidth;
                BufferHeight = （int）（BoxWidth / ImgRatio）;
            }

            //构建位图  
            Bitmap bitmap = new Bitmap（BufferWidth BufferHeight
                                     System.Drawing.Imaging.PixelFormat.Format24bppRgb）;

            if （bandlist1.Length == 3）     //RGB显示  
            {
                int[] r = new int[BufferWidth * BufferHeight];
                Band band1 = ds1.GetRasterBand（bandlist1[0]）;
                band1.ReadRaster（0 0 imgWidth imgHeight r BufferWidth BufferHeight 0 0）;  //读取图像到内存  

                //为了显示好看，进行最大最小值拉伸显示  
                double[] maxandmin1 = { 0 0 };
                band1.ComputeRasterMinMax（maxandmin1 0）;

                int[] g = new int[BufferWidth * BufferHeight];
                Band band2 = ds1.GetRasterBand（bandlist1[1]）;
                band2.ReadRaster（0 0 imgWidth imgHeight g BufferWidth BufferHeight 0 0）;

                double[] maxandmin2 = { 0 0 };
                band2.ComputeRasterMinMax（maxandmin2 0）;

                int[] b = new int[BufferWidth * BufferHeight];
                Band band3 = ds1.GetRasterBand（bandlist1[2]）;
                band3.ReadRaster（0 0 imgWidth imgHeight b BufferWidth BufferHeight 0 0）;

                double[] maxandmin3 = { 0 0 };
                band3.ComputeRasterMinMax（maxandmin3 0）;

                int i j;
                for （i = 0; i < BufferWidth; i++）
                {
                    for （j = 0; j < BufferHeight; j++）
                    {
                        int rVal = Convert.ToInt32（r[i + j * BufferWidth]）;
                        rVal = （int）（（rVal - maxandmin1[0]） / （maxandmin1[1] - maxandmin1[0]） * 255）;

                        int gVal = Convert.ToInt32（g[i + j

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件         929  2017-06-27 07:19  RS.sln
     文件       58368  2017-06-27 09:52  RS.v12.suo
     文件     1787904  2014-09-11 08:12  tif7.suo
     文件       55808  2017-06-27 07:20  tif7.v12.suo
     目录           0  2017-11-07 15:23  tif7
     目录           0  2017-11-07 15:23  tif7in
     目录           0  2017-11-07 15:23  tif7inDebug
     文件     1951744  2013-04-13 19:54  tif7inDebugcairo.dll
     文件     1152512  2010-10-25 14:52  tif7inDebugcfitsio.dll
     文件        8192  2014-05-08 11:34  tif7inDebugcreatedata.exe
     文件       65024  2012-01-01 13:31  tif7inDebugfreexl.dll
     文件      121856  2010-10-25 14:54  tif7inDebugfribidi.dll
     文件      544768  2010-10-25 15:09  tif7inDebugftgl.dll
     文件    13827584  2014-05-08 11:29  tif7inDebuggdal111.dll
     文件       80384  2014-05-08 11:34  tif7inDebuggdal_csharp.dll
     文件      140800  2014-05-08 11:34  tif7inDebuggdal_wrap.dll
     文件        8192  2014-05-08 11:34  tif7inDebugGDALAdjustContrast.exe
     文件        5632  2014-05-08 11:34  tif7inDebugGDALColorTable.exe
     文件       19456  2014-05-08 11:34  tif7inDebuggdalconst_csharp.dll
     文件       12800  2014-05-08 11:34  tif7inDebuggdalconst_wrap.dll
     文件        5120  2014-05-08 11:34  tif7inDebugGDALCreateCopy.exe
     文件        7168  2014-05-08 11:34  tif7inDebugGDALDatasetRasterIO.exe
     文件        5120  2014-05-08 11:34  tif7inDebugGDALDatasetWrite.exe
     文件        5632  2014-05-08 11:34  tif7inDebugGDALGetHistogram.exe
     文件        9216  2014-05-08 11:34  tif7inDebugGDALInfo.exe
     文件        5632  2014-05-08 11:34  tif7inDebugGDALMemDataset.exe
     文件        6656  2014-05-08 11:34  tif7inDebugGDALOverviews.exe
     文件        8704  2014-05-08 11:34  tif7inDebugGDALRead.exe
     文件        8704  2014-05-08 11:34  tif7inDebugGDALReadDirect.exe
     文件        5120  2014-05-08 11:34  tif7inDebugGDALWrite.exe
     文件     1243648  2013-11-18 09:18  tif7inDebuggeos.dll
............此处省略123个文件信息