opencv保存选择图像中的区域(二)

 /*
  * =====================================================================================
  *
  *       Filename:  resize.cpp
  *      Environment:
  *    Description:  图像list为参数输入程序，resize后的图像在picture_resize下
  *
  *
  *        Version:  1.0
  *        Created:  2013/10/15 12:23:51
  *         Author:  yuliyang
 I*
  *             Mail:  [e-mail]
  *             Blog:  http://www.cnblogs.com/yuliyang
  *
  * =====================================================================================
  */

 #include "opencv\cv.h"
 #include "opencv\highgui.h"
 #include <math.h>
 #include "windows.h"
 #include "fstream"
 #include <cstdlib>
 #include <string.h>
 using namespace std;
 static int n=;
 static char savename_resize[];
 int main(int argc, char* argv[])
 {

     /*-----------------------------------------------------------------------------
      *  创建目标目录，保存resize图像
      *  DOS命令
      *-----------------------------------------------------------------------------*/
     system("md .\\picture_resize");
     IplImage *src = ;            //源图像指针
     IplImage *dst = ;            //目标图像指针
     CvSize dst_cvsize;            //目标图像尺寸
     dst_cvsize.width=;
     dst_cvsize.height=;
     string buf;
     ifstream svm_data(argv[]);//训练样本图片的路径都写在这个txt文件中，使用bat批处理文件可以得到这个txt文件
     while (svm_data)
     {
         if (getline(svm_data,buf))
         {

              printf("processing %s...\n",buf.c_str());
              src = cvLoadImage(buf.c_str());
              dst = cvCreateImage( dst_cvsize, src->depth, src->nChannels);    //构造目标图象
              cvResize(src, dst, CV_INTER_LINEAR);    //缩放源图像到目标图像
              sprintf(savename_resize,".//picture_resize//resize%03dr.bmp",n);
              cvSaveImage(savename_resize,dst);
              n++;
              cvReleaseImage(&src);    //释放源图像占用的内存
              cvReleaseImage(&dst);    //释放目标图像占用的内存
         }
     }

     svm_data.close();

     /*-----------------------------------------------------------------------------
      *  bat批处理：
      *
      * 在num.txt文件中的偶数行插入数字0，分类器的label
      *
      setlocal enabledelayedexpansion
      for /f "delims=  " %%a in (num.txt) do (
      set /a line =0
      echo %%a >>0.txt
      echo !line! >>0.txt
      )

      将目录下的所以文件名写入num.txt文件里
      dir /b/s/p/w *.bmp > num.txt

      将所有0.txt - 9.txt内的内容全部写入到hb.txt
      @echo off
      set d=d:\nums
      pushd %d%
      del hb.tmp 2>nul
      for /f "tokens=*" %%i in ('dir/b/s *.txt') do type "%%i">>hb.txt
      ren hb.tmp hb.txt
      popd

      *
      *-----------------------------------------------------------------------------*/

     /* the first command line parameter must be image file name */
     // src = cvLoadImage(argv[1]);
     // dst_cvsize.width = src->width * scale;        //目标图像的宽为源图象宽的scale倍
     // dst_cvsize.height = src->height * scale;    //目标图像的高为源图象高的scale倍
     //

     return ;
 }

 /*
  * =====================================================================================
  *
  *       Filename:  select2save.cpp
  *    Description:  获取感兴趣的选区，自动创建目录和resize大小
  *    环境：opencv2.4.4和vs2010
  *
  *
  *        Version:  2
  *        Created:  2013/10/14 19:52:09
  *         Author:  yuliyang
  *            Weibo:    @礼杨_HDU
  *             Mail:  [e-mail]
  *             Blog:  http://www.cnblogs.com/yuliyang
  *
  * =====================================================================================
  */
 #include "opencv\cv.h"
 /*-----------------------------------------------------------------------------
  *  很奇怪的的是cvresize()在这个头文件里，加了它才有定义，否则编译会说函数未定义
  *-----------------------------------------------------------------------------*/
 #include "opencv\highgui.h"
 #include "opencv2/core/core.hpp"
 #include "opencv2/highgui/highgui.hpp"
 #include "opencv2/imgproc/imgproc.hpp"
 #include <stdio.h>
 #include <math.h>
 using namespace cv;

 IplImage* org = ;
 IplImage* img = ;
 IplImage* tmp = ;
 IplImage* dst = ;
 IplImage* dst_resize = ;
 static int n=;
 static char savename[];
 static char savename_resize[];
 void on_mouse( int event, int x, int y, int flags, void* ustc)
 {
     static CvPoint pre_pt = {-,-};
     static CvPoint cur_pt = {-,-};
     CvFont font;
     cvInitFont(&font, CV_FONT_HERSHEY_SIMPLEX, 0.5, 0.5, , , CV_AA);
     char temp[];
     char lenth_and_height[];

     if( event == CV_EVENT_LBUTTONDOWN )
     {
         cvCopy(org,img);
         sprintf(temp,"(%d,%d)",x,y);
         pre_pt = cvPoint(x,y);
         cvPutText(img,temp, pre_pt, &font, cvScalar(,, , ));
         cvCircle( img, pre_pt, ,cvScalar(,,,) ,CV_FILLED, CV_AA,  );
         cvShowImage( "img", img );
         cvCopy(img,tmp);
     }
     else if( event == CV_EVENT_MOUSEMOVE && !(flags & CV_EVENT_FLAG_LBUTTON))
     {
         cvCopy(tmp,img);
         sprintf(temp,"(%d,%d)",x,y);
         cur_pt = cvPoint(x,y);
         cvPutText(img,temp, cur_pt, &font, cvScalar(,, , ));
         cvShowImage( "img", img );
     }
     else if( event == CV_EVENT_MOUSEMOVE && (flags & CV_EVENT_FLAG_LBUTTON))
     {
         cvCopy(tmp,img);
         sprintf(temp,"(%d,%d)",x,y);
         cur_pt = cvPoint(x,y);
         cvPutText(img,temp, cur_pt, &font, cvScalar(,, , ));
         cvRectangle(img, pre_pt, cur_pt, cvScalar(,,,), , ,  );
         sprintf(lenth_and_height,"(Width:%d,Height:%d)",abs(cur_pt.x-pre_pt.x),abs(cur_pt.y-pre_pt.y));
         /*-----------------------------------------------------------------------------
          *
          *
          *  为了方便随时查看自己选区的宽度和高度，特意加了一个点，该点计算为取矩形窗左上点和右下点的中点
          *
          *
          *-----------------------------------------------------------------------------*/
         CvPoint origin;
         origin.x=(pre_pt.x+cur_pt.x)/;
         origin.y=(pre_pt.y+cur_pt.y)/;
         cvPutText(img,lenth_and_height, origin, &font, cvScalar(,, , ));
         cvShowImage( "img", img );
     }
     else if( event == CV_EVENT_LBUTTONUP )
     {
         cvCopy(tmp,img);
         sprintf(temp,"(%d,%d)",x,y);
         cur_pt = cvPoint(x,y);
         cvPutText(img,temp, cur_pt, &font, cvScalar(,, , ));
         cvCircle( img, cur_pt, ,cvScalar(,,,) ,CV_FILLED, CV_AA,  );
         cvRectangle( img, pre_pt, cur_pt, cvScalar(,,,), , ,  );
         cvShowImage( "img", img );
         cvCopy(img,tmp);
         int width=abs(pre_pt.x-cur_pt.x);
         int height=abs(pre_pt.y-cur_pt.y);
         if(width== || height==)
         {
             cvDestroyWindow("dst");
             return;
         }
         dst=cvCreateImage(cvSize(width,height),org->depth,org->nChannels);
         CvRect rect;
         if(pre_pt.x<cur_pt.x && pre_pt.y<cur_pt.y)
         {
             rect=cvRect(pre_pt.x,pre_pt.y,width,height);
         }
         else if(pre_pt.x>cur_pt.x && pre_pt.y<cur_pt.y)
         {
             rect=cvRect(cur_pt.x,pre_pt.y,width,height);
         }
         else if(pre_pt.x>cur_pt.x && pre_pt.y>cur_pt.y)
         {
             rect=cvRect(cur_pt.x,cur_pt.y,width,height);
         }
         else if(pre_pt.x<cur_pt.x && pre_pt.y>cur_pt.y)
         {
             rect=cvRect(pre_pt.x,cur_pt.y,width,height);
         }
         cvSetImageROI(org,rect);
         cvCopy(org,dst);

         /*-----------------------------------------------------------------------------
          *  定义保存图像的大小
          *-----------------------------------------------------------------------------*/
         CvSize dst_cvsize;
         dst_cvsize.width=;
         dst_cvsize.height=;
         dst_resize = cvCreateImage( dst_cvsize, org->depth, org->nChannels);
         cvResize(org, dst_resize, CV_INTER_LINEAR);

         cvResetImageROI(org);
         cvDestroyWindow("dst");
         //cvNamedWindow("dst",1);
         //cvShowImage("dst",dst);

         /*-----------------------------------------------------------------------------
          *  保存未resize的图像
          *-----------------------------------------------------------------------------*/
         sprintf(savename,".\\picture\\save%03d.bmp",n);
         /*-----------------------------------------------------------------------------
          *  保存在resize文件夹下
          *-----------------------------------------------------------------------------*/
         sprintf(savename_resize,".\\picture_resize\\save%03dr.bmp",n);

         cvSaveImage(savename,dst);
         cvSaveImage(savename_resize,dst_resize);
         n++;
     }
 }
 int main(int argc, char *argv[])
 {

     /*-----------------------------------------------------------------------------
      *  用DOS命令创建文件夹，用于分类resize和未resize的原图像
      *-----------------------------------------------------------------------------*/
     system("md .\\picture_resize");
     system("md .\\picture");
     org=cvLoadImage(argv[],);
     img=cvCloneImage(org);
     tmp=cvCloneImage(org);
     cvNamedWindow("img",);
     cvSetMouseCallback( "img", on_mouse,  );

     cvShowImage("img",img);
     cvWaitKey();
     cvDestroyAllWindows();
     cvReleaseImage(&org);
     cvReleaseImage(&img);
     cvReleaseImage(&tmp);
     cvReleaseImage(&dst);
     return ;
 }