本文整理汇总了C++中ImageEncoder::encode方法的典型用法代码示例。如果您正苦于以下问题：C++ ImageEncoder::encode方法的具体用法？C++ ImageEncoder::encode怎么用？C++ ImageEncoder::encode使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ImageEncoder的用法示例。
在下文中一共展示了ImageEncoder::encode方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: main
int main(int argc, char const* argv[]) {
string address;
string port;
int threads = 1;
fs::path db_path;
namespace po = boost::program_options;
po::options_description desc("Allowed options");
desc.add_options()
("help,h", "produce help message.")
("address", po::value(&address)->default_value("0.0.0.0"), "")
("port", po::value(&port)->default_value("18888"), "")
("db", po::value(&db_path), "")
;
po::positional_options_description p;
p.add("db", 1);
po::variables_map vm;
po::store(po::command_line_parser(argc, argv).
options(desc).positional(p).run(), vm);
po::notify(vm);
if (vm.count("help") || db_path.empty()) {
cout << "Usage:" << endl;
cout << "\tserver ... <db>" << endl;
cout << desc;
cout << endl;
return 0;
}
// Create a multiplexer for handling requests
served::multiplexer mux;
picpac::IndexedFileReader db(db_path);
default_random_engine rng;
magic_t cookie = magic_open(MAGIC_MIME_TYPE);
CHECK(cookie);
magic_load(cookie, NULL);
// GET /hello
mux.handle("/l")
.get(no_throw([&db, &cookie](served::response &res, const served::request &req) {
rfc3986::Form query(req.url().query());
rfc3986::Form trans;
// transfer all applicable image parameters to trans
// so we can later use that for image display
#define PICPAC_CONFIG_UPDATE(C,P) \
{ auto it = query.find(#P); if (it != query.end()) trans.insert(*it);}
PICPAC_CONFIG_UPDATE_ALL(0);
#undef PICPAC_CONFIG_UPDATE
string ext = trans.encode(true);
int count = query.get<int>("count", 20);
string anno = query.get<string>("anno", "");
res << "<html><body><table><tr><th>Image</th></tr>";
for (unsigned i = 0; i < count; ++i) {
int id = rand() % db.size();
res << "<tr><td><img src=\"/image?id="
<< lexical_cast<string>(id) << ext
<< "\"></img></td></tr>";
}
res << "</table></body></html>";
}));
mux.handle("/file")
.get(no_throw([&db, &cookie](served::response &res, const served::request &req) {
rfc3986::Form query(req.url().query());
int id = lexical_cast<int>(query["id"]);
Record rec;
db.read(id, &rec);
string buf = rec.field_string(0);
char const *mime = magic_buffer(cookie, &buf[0], buf.size());
res.set_header("Content-Type", mime);
res.set_body(buf);
}));
mux.handle("/image")
.get(no_throw([&db, &rng](served::response &res, const served::request &req) {
rfc3986::Form query(req.url().query());
PICPAC_CONFIG conf;
conf.anno_color3 = 255;
conf.anno_copy = true;
conf.anno_thickness = 2;
conf.pert_color1 = 20;
conf.pert_color2 = 20;
conf.pert_color3 = 20;
conf.pert_angle = 20;
conf.pert_min_scale = 0.8;
conf.pert_max_scale = 1.2;
#define PICPAC_CONFIG_UPDATE(C,P) C.P = query.get<decltype(C.P)>(#P, C.P)
PICPAC_CONFIG_UPDATE_ALL(conf);
#undef PICPAC_CONFIG_UPDATE
ImageLoader loader(conf);
ImageLoader::PerturbVector pv;
int id = query.get<int>("id", rng() % db.size());
ImageLoader::Value v;
loader.sample(rng, &pv);
loader.load([&db, id](Record *r){db.read(id, r);}, pv, &v);
ImageEncoder encoder;
string buf;
cv::Mat image = v.image;
//.........这里部分代码省略.........