c++获取图像的长宽 opencv_C++实现读取图片长度和宽度

#include

#include

#include

using namespace std;

class CImage

{

private:

long m_Width;

long m_Height;

int get_extension(string fname);

public:

CImage()

{

m_Width = 0;

m_Height = 0;

};

void LoadImage(char* fname);

long get_width()

{

return m_Width;

};

long get_height()

{

return m_Height;

};

};

int CImage::get_extension(string fname)

{

char c = fname.at(fname.length()-1);

char c2 = fname.at(fname.length()-3);

if ((c == 'f') && (c2 == 'g')){ // file extension name is gif

return 1;

}else if ((c == 'g') && (c2 == 'j')){ // file extension name is jpg

return 2;

}else if ((c == 'g') && (c2 == 'p')){ // file extens