Use OpenCV for image creation, saving, and replication _opencv

Routines from the speech "using OpenCV for image processing"

/************************************************** * cvloadimage, Cvsaveimage, Cvcreateimage, cvcopy and Image Display Example * * * / /********************************************************** * OpenCV Example * by Shiqi Yu 2006 ********************************************************************* **/  #include "cv.h" #include "highgui.h"   int main (int argc, char** argv) {iplimage* pimg;//Declaration Iplimage Point
      Pin  //load image, force conversion to gray if (argc = = 3 && (pimg = Cvloadimage (argv[1), 0))!= 0) { 
      iplimage* PImg2 = Cvcreateimage (Cvgetsize (pimg), pimg->depth, pimg->nchannels);
Cvcopy (pimg, PImg2, NULL);   Cvsaveimage (argv[2], PIMG2)//write image to file   Cvnamedwindow ("image", 1);//Create Window Cvshowimage ("Ima GE ", pimg);//Display image   Cvwaitkey (0); Wait for button   Cvdestroywindow ("Image");//Destroy Window Cvreleaseimage (&pimg);
Releasing images      Cvreleaseimage (&PIMG2);
    Release image return 0;
}   return-1; }

Edit Python version

#-*-Coding:utf-8-*-
###########################################################
# OpenCV Example
# #
Cvloadimage, Cvsaveimage, Cvcreateimage, cvcopy
# and image display Examples
# by
Chaishushan
2008 ########### ################################################ import
sys
# imports OpenCV module
from OPENCV.CV Import * from
Opencv.highgui import *
if __name__ = = ' __main__ ':
    If Len (sys.argv) = = 3:
        # Load image, Force conversion to gray
        pimg = Cvloadimage (sys.argv[1], 0)
        if not pImg:sys.exit ( -1)

  # Create the same size figure small
        pImg2 = Cvcreateimage (Cvgetsize (pimg), pimg.depth, pimg.nchannels)
        # Copy Image
        cvcopy (pimg, PImg2, None)
        # Write image to file
        cvsaveimage (sys.argv[2], pImg2)
        # Create window
        cvnamedwindow ("Mywin")
        # Display Image
        Cvshowimage ("Mywin", pimg)
        cvwaitkey (0)

Note: The python version is rewritten by chai2010. Edit python2.7-opencv2.2 version

#-*-Coding:utf-8-*-
' Created on
2011-8-17
@author: Sunny ' '
# import OPENCV module Imports
CV
Import sys
if __name__ = = ' __main__ ':
        # Load image, Force convert to gray
        pimg = cv. LoadImage ("lena.jpg")
        # creates the same sized figure of the small
        pImg2 = cv. CreateImage (CV. GetSize (pimg), pimg.depth, pimg.nchannels)
        # Copy the image
        cv. Copy (pimg, PImg2, None)
        # writes the image to the file
        cv. SaveImage ("Lena1.jpg", PImg2)
        # Create a window
        cv. Namedwindow ("Mywin")
        # Displays the image
        cv. ShowImage ("Mywin", pimg)
        CV. Waitkey (0)

Note: The python2.7-opencv2.2 version is rewritten by sunny2020.

from:http://wiki.opencv.org.cn/index.php/%e5%9b%be%e5%83%8f%e5%88%9b%e5%bb%ba%e3%80%81%e4%bf%9d%e5%ad%98%e5%92 %8c%e5%a4%8d%e5%88%b6