CImg读取图像异常

Question

I am using CImg to read a .png file, like following:

// DGT.cpp : Defines the entry point for the console application.

#include "stdafx.h"
#include <iostream>
#include <fstream>
#include "..\CImg\CImg.h"

using namespace std;
using namespace cimg_library;

long ReadImage(char *fileName)
{
    CImg<unsigned char> image(fileName); // stackover flow exceptions thrown here.

    return 0;
}

int _tmain(int argc, _TCHAR* argv[])
{
    ReadImage("D:\\Projects\\DGT\\DGT\\shepplogan256.png");
    return 0;
}

However, the stack overflown exceptions is thrown at CImg<unsigned char> image(fileName); when trying to load the image. The image is there, so I am wondering where I messed up and how to read the image?

Answer 1

您需要libpng或imagemagick才能使用CImg加载PNG文件。

Answer 2

To read .jpeg or .png files natively, CImg needs you to link your code with either libpng or libjpeg, and that you define macros cimg_use_png or cimg_use_jpeg . By doing so, ImageMagick is not required at all. I prefer this solution as it does not require installing a new (external) software to read image files, and eases the distribution of the binaries as well.