Exiv2

软件简介

Exiv2 是一个用来提取图片中的EXIF、LPTC 和 XMP 元数据信息的C++类库。同时还提供了命令行工具。

示例代码：

    Exiv2::Image::AutoPtr image = Exiv2::ImageFactory::open(argv[1]);
    assert(image.get() != 0);
    image->readMetadata();
    Exiv2::ExifData &exifData = image->exifData();
    Exiv2::ExifData::const_iterator end = exifData.end();
    for (Exiv2::ExifData::const_iterator i = exifData.begin(); i != end; ++i) {
        std::cout << std::setw(44) << std::setfill(' ') << std::left
                  << i->key() << " "
                  << "0x" << std::setw(4) << std::setfill('0') << std::right
                  << std::hex << i->tag() << " "
                  << std::setw(9) << std::setfill(' ') << std::left
                  << i->typeName() << " "
                  << std::dec << std::setw(3)
                  << std::setfill(' ') << std::right
                  << i->count() << "  "
                  << std::dec << i->value()
                  << "\n";
    }
转载自: https://www.oschina.net/p/exiv2
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