main.cpp

//
// Created by shiyu on 2/17/20.
//

#include <iostream>
#include <string>
#include <ImgMat.h>
#include <ImgProc.h>
using namespace std;
using namespace cv;

int main(int argc, char **argv) {
  if (argc != 2) {
    printf("usage: ./ImgLibrary <Image_Path>\n");
    return -1;
  }

  /** original input */
  ImgMat imgMat;
  imgMat.loadImg(argv[1], "RGB");
  cout << "Height: " << imgMat.getHeight() << " Width: "
       << imgMat.getWidth() << " Type: " << imgMat.getType() << endl;
  ImgProc::Display(imgMat, "input");

  /** RGB to Gray */
  ImgMat gray(imgMat.getHeight(), imgMat.getWidth(), "GrayScale");
  ImgProc::RGB2Gray(imgMat, gray);
  ImgProc::Display(gray, "input (grayscale converted)");

  /** shallow copy of gray, shallow copy won't become the owner in this case*/
  ImgMat sCopy(gray);

  /** deep copy of gray*/
  ImgMat dCopy;
  gray.copyTo(dCopy);

  /** apply some mask to gray at the center*/
  ImgProc::CenterMask(gray, min(gray.getHeight(), gray.getWidth()) / 2);
  ImgProc::Display(gray, "masked gray");

  /** check if shallow/deep copy is touched */
  ImgProc::Display(dCopy, "deep copy of gray (untouched)");
  ImgProc::Display(sCopy, "shallow copy of gray (affected)");

  cout << "number of shallow copy of the ori image: " << sCopy.useCount() << endl;
  /** compute histogram */
  auto hist = ImgProc::ComputeHistogram(imgMat);
  cout << "size of histogram (" << hist.size() << ", " << hist[0].size() << ")" << endl;

  return 0;
}