resize

 1 #include<opencv2/opencv.hpp>  
#include<iostream>  
#include<cassert>  
#include<vector>  
#include<stdio.h>
#include <sys/time.h>

using namespace cv;  
using namespace std;

int main(int argc, char* argv[])
{
    int resize_height = 360;
    int resize_width = 480;
    Mat src = imread(argv[1], CV_LOAD_IMAGE_COLOR); 
    Mat dst;
    //imshow("src", src);
    double time = getTime_us(); 
    resize(src, dst, Size(resize_width, resize_height), 0, 0, cv::INTER_LINEAR);
    cout << "time:" << (getTime_us()-time)/1000 <<"ms"<< endl;
    //imshow("dst", dst);

    cout << "type:" << dst.type() << endl;
    cout << "CV_8UC3:" << CV_8UC3 << endl;
    cout << "depth:" << dst.depth() << endl;
    cout << "channel:" << dst.channels() << endl;
    cout << "rows:" << dst.rows << endl;
    cout << "cols:" << dst.cols << endl;

    cv::waitKey(0);
    return 0;
}

#include<opencv2/opencv.hpp>  
#include<iostream>  
#include<cassert>  
#include<vector>  
#include<stdio.h>
#include <sys/time.h>

using namespace cv;  
using namespace std;

int main(int argc, char* argv[])
{
    int resize_height = 360;
    int resize_width = 480;
    Mat src = imread(argv[1], CV_LOAD_IMAGE_COLOR); 
    Mat dst;
    //imshow("src", src);
    double time = getTime_us(); 
    resize(src, dst, Size(resize_width, resize_height), 0, 0, cv::INTER_LINEAR);
    cout << "time:" << (getTime_us()-time)/1000 <<"ms"<< endl;
    //imshow("dst", dst);

    cout << "type:" << dst.type() << endl;
    cout << "CV_8UC3:" << CV_8UC3 << endl;
    cout << "depth:" << dst.depth() << endl;
    cout << "channel:" << dst.channels() << endl;
    cout << "rows:" << dst.rows << endl;
    cout << "cols:" << dst.cols << endl;

    cv::waitKey(0);
    return 0;
}