Qt实现图片转base64，base64转图片

 

一、Qt实现图片转base64

void pic2data()
{
    QString image_path = "1.png"
    QImage img(image_path);
    QByteArray image_data;
    QBuffer buffer(&image_data);
    buffer.open(QIODevice::WriteOnly);
    img.save(&buffer, "PNG");
    QString base64_data = image_data.toBase64();
}

 

二、Qt实现base64转图片

void data2pic()
{
    QString base64 = "/9j/4AAQSkZJRgABAQEAYABgAAD/2wB.......";
    QByteArray data = base64.toLatin1();

    QImage img;
    img.loadFromData(QByteArray::fromBase64(data));
}