Practica1Ej4Falla.c

#include <stdio.h>
#include <stdlib.h>

#include <opencv/cv.h>
#include <opencv/highgui.h>

int main(int argc, char **argv) {

    if (argc != 2) {
        printf("Error: Usage %s image_file_name\n", argv[0]);
        return EXIT_FAILURE;
    }

    //CV_LOAD_IMAGE_COLOR = 1 forces the resultant IplImage to be colour.
    //CV_LOAD_IMAGE_GRAYSCALE = 0 forces a greyscale IplImage.
    //CV_LOAD_IMAGE_UNCHANGED = -1
    
    IplImage* ImgOriginal = cvLoadImage(argv[1], CV_LOAD_IMAGE_COLOR);
    
    IplImage* ImgOut = cvCreateImage(cvSize(ImgOriginal->width, ImgOriginal->height*4), IPL_DEPTH_8U, 3);
    
    // Always check if the program can find the image file
    if (!ImgOut) {
        printf("Error: file %s not found\n", argv[1]);
        return EXIT_FAILURE;
    }

    int fila, columna;
    int original = ImgOriginal->height;
    // nos movemos por filas
    for (fila = 0; fila < ImgOriginal->height; fila++) {
        unsigned char *pLeer = (unsigned char *) ImgOriginal->imageData + fila * ImgOriginal->widthStep;
        unsigned char *pEscribir = (unsigned char *) ImgOut->imageData + fila * ImgOut->widthStep;
        unsigned char *pEscribir2 = (unsigned char *) ImgOut->imageData + original++ * ImgOut->widthStep;
        for (columna = 0; columna < ImgOriginal->width; columna++) {
            *pEscribir++ = *pLeer++;
            *pEscribir++ = *pLeer++;
            *pEscribir++ = *pLeer++;
            *pEscribir2++ = *pLeer++;
            *pEscribir2++ = *pLeer++;
            *pEscribir2++ = *pLeer++;

        }
    }
    cvNamedWindow("Imagen Original", CV_WINDOW_AUTOSIZE);
    cvShowImage("Imagen Original", ImgOriginal);
    // crea y muestras las ventanas con las im genes
    cvNamedWindow("Imagen Big", CV_WINDOW_AUTOSIZE);
    cvShowImage("Imagen Big", ImgOut);
    
    cvWaitKey(0);


    // memory release for images before exiting the application
    cvReleaseImage(&ImgOut);

    // Self-explanatory
    cvDestroyWindow(argv[1]);
    cvDestroyWindow("Imagen Recolor");

    return EXIT_SUCCESS;
}