问题描述

opencv1.0+vc++图像处理CV_IMWRITE_JPEG_QUALITY没定义？

在做图像处理时，保存图片时显示出错，没定义，代码如下：
#include "stdafx.h"
#include "highgui.h"
#include "cxcore.h"
#include "cv.h"
#include "iostream.h"

int main()

{

CvCapture* capture = cvCaptureFromCAM(0);

CvVideoWriter* video = NULL;

IplImage* frame = NULL;

IplImage* pSaveFrame = NULL;

char filename[20];
int i = 0;
int p[3];
p[0] = CV_IMWRITE_JPEG_QUALITY;
p[1] = 255;  //质量值
p[2] = 255;  

int n;
if (!capture) //如果不能打开摄像头给出警告
{
    cout << "Can not open the camera." << endl;
    return -1;
}
else
{
    frame = cvQueryFrame(capture); //首先取得摄像头中的一帧
    video = cvCreateVideoWriter("camera.avi",
        CV_FOURCC('X','V','I','D'),
        25,
        cvSize(frame->width, frame->height)); //创建CvVideoWriter对象并分配空间  

    //保存的文件名为camera.avi，编码要在运行程序时选择，大小就是摄像头视频的大小，帧频率是32
    if (video) //如果能创建CvVideoWriter对象则表明成功
    {
        cout << "VideoWriter has created." << endl;
    }
    cvNamedWindow("Camera Video", 1); //新建一个窗口
    while (i<200)
    {
        frame = cvQueryFrame(capture); //从CvCapture中获得一帧  

        if (!frame)
        {
            cout << "Can not get frame from the capture." << endl;
            break;
        }  

        n = cvWriteFrame(video, frame); //判断是否写入成功，如果返回的是1，表示写入成功
        cout << n << endl;  

        cvShowImage("Camera Video", frame); //显示视频内容的图片  

        pSaveFrame = cvCreateImage(cvSize(frame->width, frame->height),
            frame->depth,
            frame->nChannels);
        sprintf(filename, "%d.jpg", i);
        i++;
        cvResize(frame, pSaveFrame, CV_INTER_LINEAR);
        cvSaveImage("F://zhao.jpg", pSaveFrame);
        cvReleaseImage(&pSaveFrame);  

        if (cvWaitKey(1)>0) break; //有其他键盘响应，则退出
    }
    cvReleaseVideoWriter(&video);
    cvReleaseCapture(&capture);
    cvDestroyWindow("Camera Video");
}
return 0;
    求大神帮忙

解决方案

p[0] = CV_IMWRITE_JPEG_QUALITY;

p[1] = 255; //质量值

p[2] = 255;

这三个东西你在哪里用到的？