Opencv CPP function to resize image

#include "opencv\cv.h"
#include "opencv\highgui.h"

int resize(IplImage* inputImage)
{
    // Load input image
    //IplImage* inputImage = cvLoadImage("b.jpg");

    // Create images for resize
    IplImage* resizedImageLinear =cvCreateImage(cvSize(220,220),inputImage->depth, inputImage->nChannels);
   

    // Resize input image using different method
    // Bilinear interpolation
    cvResize(inputImage, resizedImageLinear, CV_INTER_LINEAR);
    // Nearest neighbor
   
    // Save images
    cvSaveImage("b_resized.jpg", resizedImageLinear);
  
    // Create windows to show images
    cvNamedWindow("Input");
    cvNamedWindow("Linear");
   

    // Show images
    cvShowImage("Input", inputImage);
    cvShowImage("Linear", resizedImageLinear);
   
    // Wait for user input
    cvWaitKey(0);

    // Destroy windows
    cvDestroyWindow("Input");
    cvDestroyWindow("Linear");
  

    // Release memory
    cvReleaseImage(&inputImage);
    cvReleaseImage(&resizedImageLinear);
   

    // Exit
    return 0;
}