OpenCV- Working with OpenCV

#include <stdlib.h> #include <stdio.h> #include <math.h> #include <string.h> #include<opencv2\opencv.hpp> #include <opencv2\highgui\highgui.hpp> int main(int argc, char *argv[]) { IplImage* img = 0; int height,width,step,channels; uchar *data; int i,j,k; char* change_im(char*); char *im = ""; if(argc<2){ printf("Usage: main <image-file-name>\n\7"); im = "aresh.jpg"; //decalre DEFAULT } else { im = argv[1]; } // load an image img=cvLoadImage(im); if(!img){ printf("Could not load image file: %s\n",im); exit(0); } // get the image data height = img->height; width = img->width; step = img->widthStep; channels = img->nChannels; data = (uchar *)img->imageData; printf("Processing a %dx%d image with %d channels\n",height,width,channels); // create a window cvNamedWindow("mainWin", CV_WINDOW_AUTO...