因此,在下面的代码中,我使用fstream读取文件并将其转换为字节向量,我想知道是否存在一种无需下载外部C ++库即可将其转换回jpeg图像的方法。我觉得应该有一种方法来获取字节数组并以某种方式返回图像。
std::vector<unsigned int> getByteArray(std::string filename){
// Define file stream object,and open the file
std::ifstream file (filename,std::ios::binary); //reads in the file
// Prepare iterator pairs to iterate the file content!
std::istream_iterator<unsigned char> begin(file),end; //creates an iterator of type unsigned char to read from begin of ile to end
std::vector<unsigned int> buffer(begin,end); //putting the values in a vector called buffer
//std::copy(buffer.begin(),buffer.end(),std::ostream_iterator<unsigned int>(std::cout <<","));
for(int i=0;i<buffer.size();i++){
std::cout<<buffer[i];
}
}