opencv call sample

cvtest.c

/*
 * cvtest.c
 *
 *  Created on: Mar 26, 2013
 *      Author: szhu
Makefile:
CFLAGS=-g
CFLAGS+=$(shell pkg-config --cflags opencv)
LDFLAGS= $(shell pkg-config --libs opencv)
CC=gcc
CXX=g++

TARGET=ezimage

LIBS=ezimage.lo

$(TARGET):$(LIBS)
    libtool --mode=link $(CC) $(LDFLAGS) -o $@ $+

%.lo: %.c
	libtool --mode=compile $(CC) $(CFLAGS) -c -o $@ $<
	
%.lo: %.cpp
	libtool --mode=compile $(CXX) $(CFLAGS) -c -o $@ $<
	
clean:
	rm -rf *.o *.lo *.a *.la .libs $(TARGET)

 */
#include <stdio.h>
#include <stdint.h>
#include <iostream>
#include <cv.h>
#include <highgui.h>

using namespace std;

int get_file_size(FILE* fp){
    int size, p1;
    p1 = ftell(fp);
    fseek(fp, 0, SEEK_END);
    size = ftell(fp);
    fseek(fp, p1, SEEK_SET);
    return size;
}

void printIplImage(IplImage *pImage)
{
    cout << "IplImage大小:" << pImage->nSize << endl;
    cout << "ID:" << pImage->ID << endl;
    cout << "nChannels:" << pImage->nChannels << endl;
    cout << "depth:" << pImage->depth << endl;
    cout << "dataOrder:" << ((pImage->dataOrder == 0)?("交叉存取颜色通道") : ("分开的颜色通道")) << endl;
    cout << "origin:" << ((pImage->origin == 0)? ("顶-左结构"):("底-左结构")) << endl;
    cout << "width:" << pImage->width << endl;
    cout << "height:" << pImage->height << endl;
    cout << "ImageSize:" << pImage->imageSize << endl;
    cout << "widthStep:" << pImage->widthStep << endl;
    cout << "End" << endl << endl;
}

int main(int argc, char* argv[]){
    int i;
    IplImage *src, *rimg_plane, *gimg_plane, *bimg_plane;
    IplImage *img[4];
    char *buf, *start;
    int width, heigh, bpp;

//    if(argc < 2){
//        printf("The args too few.\n");
//        return 0;
//    }
    src = cvLoadImage("/mnt/hgfs/E/media/cat.bmp", CV_LOAD_IMAGE_ANYCOLOR);

    printIplImage(src);

    width = src->width;
    heigh = src->height;
    bpp = src->depth * src->nChannels;

    cvNamedWindow("src", CV_WINDOW_AUTOSIZE);
    cvNamedWindow("r", CV_WINDOW_AUTOSIZE);
    cvNamedWindow("g", CV_WINDOW_AUTOSIZE);
    cvNamedWindow("b", CV_WINDOW_AUTOSIZE);

    for(i = 0; i < 4; i++){
        img[i] = cvCreateImage(cvSize(width, heigh), IPL_DEPTH_8U, bpp/8);
    }

    rimg_plane = cvCreateImage(cvSize(width, heigh), IPL_DEPTH_8U, 1);
    gimg_plane = cvCreateImage(cvSize(width, heigh), IPL_DEPTH_8U, 1);
    bimg_plane = cvCreateImage(cvSize(width, heigh), IPL_DEPTH_8U, 1);

//    cvimg = cvLoadImage(argv[1], CV_LOAD_IMAGE_ANYCOLOR);

    cvSplit(src, rimg_plane, gimg_plane, bimg_plane, NULL);


    cvMerge(NULL, NULL, rimg_plane, NULL, img[0]);
    cvMerge(NULL, gimg_plane, NULL, NULL, img[1]);
    cvMerge(bimg_plane, NULL, NULL, NULL, img[2]);


    cvShowImage("src", src);
    cvShowImage("r", img[0]);
    cvShowImage("g", img[1]);
    cvShowImage("b", img[2]);

    cvWaitKey(0);

    cvDestroyWindow("src");
    cvDestroyWindow("r");
    cvDestroyWindow("g");
    cvDestroyWindow("b");

    return 0;
}