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picpac-import.cpp
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picpac-import.cpp
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#include <boost/program_options.hpp>
#include <boost/filesystem/fstream.hpp>
#include <boost/algorithm/string/split.hpp>
#include <boost/algorithm/string/trim.hpp>
#include "picpac.h"
#include "picpac-cv.h"
#include "picpac-util.h"
using namespace std;
using namespace boost;
using namespace picpac;
enum {
FORMAT_DIR = 0,
FORMAT_LIST = 1,
FORMAT_SUB_DIR = 2,
FORMAT_ANNO_JSON = 3,
FORMAT_ANNO_IMAGE = 4
};
class Paths: public vector<fs::path> {
public:
Paths () {}
Paths (fs::path const &path) {
fs::recursive_directory_iterator it(fs::path(path), fs::symlink_option::recurse), end;
for (; it != end; ++it) {
if (it->status().type() == fs::regular_file) {
push_back(it->path());
}
}
CHECK(size() >= 10) << "Need at least 10 files to train: " << path;
}
};
class Samples: public vector<Paths> {
public:
Samples () {}
Samples (fs::path const &root) {
fs::directory_iterator it(root), end;
vector<unsigned> cats;
for (; it != end; ++it) {
if (!fs::is_directory(it->path())) {
LOG(ERROR) << "Not a directory: " << it->path();
continue;
}
fs::path name = it->path().filename();
try {
unsigned c = lexical_cast<unsigned>(name.native());
cats.push_back(c);
}
catch (...) {
LOG(ERROR) << "Category directory not properly named: " << it->path();
}
}
sort(cats.begin(), cats.end());
cats.resize(unique(cats.begin(), cats.end()) - cats.begin());
CHECK(cats.size() >= 2) << "Need at least 2 categories to train.";
CHECK((cats.front() == 0)
&& (cats.back() == cats.size() -1 ))
<< "Subdirectories must be consecutively named from 0 to N-1.";
for (unsigned c = 0; c < cats.size(); ++c) {
emplace_back(root / fs::path(lexical_cast<string>(c)));
LOG(INFO) << "Loaded " << back().size() << " paths for category " << c << ".";
}
}
};
int main(int argc, char **argv) {
namespace po = boost::program_options;
fs::path cache;
fs::path input_path;
fs::path output_path;
int max_size;
int resize;
int format;
po::options_description desc("Allowed options");
desc.add_options()
("help,h", "produce help message.")
("input,i", po::value(&input_path), "")
("output,o", po::value(&output_path), "")
("max", po::value(&max_size)->default_value(-1), "")
("resize", po::value(&resize)->default_value(-1), "")
("format,f", po::value(&format)->default_value(1), "")
("cache", po::value(&cache)->default_value(".picpac_cache"), "")
("compact", "")
/*
("gray", "")
("log-level,v", po::value(&FLAGS_minloglevel)->default_value(1), "")
*/
;
po::positional_options_description p;
p.add("input", 1);
p.add("output", 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") || input_path.empty() || output_path.empty()) {
cerr << "Usage: picpac-import [options] <input> <output>" << endl;
cerr << desc;
cerr << endl;
cerr << "Formats:" << endl
<< " 1: list of <image\tlabel>" << endl
<< " 2: scan a directory" << endl
<< " 3: list of <image\tjson-annotation>" << endl
<< " 4: list of <image\tannotation-image>" << endl;
return 1;
}
//if (vm.count("gray")) gray = true;
int flags = 0;
if (vm.count("compact")) flags |= picpac::FileWriter::COMPACT;
google::InitGoogleLogging(argv[0]);
picpac::FileWriter db(output_path, flags);
CachedDownloader downloader(cache);
ImageReader imreader(max_size, resize);
int count = 0;
if (format == FORMAT_DIR || format == FORMAT_SUB_DIR) {
Samples all;
if (format == FORMAT_SUB_DIR) {
Samples tmp(input_path);
all.swap(tmp);
}
else if (format == FORMAT_DIR) {
all.emplace_back(input_path);
}
for (unsigned i = 0; i < all.size(); ++i) {
for (auto const &path: all[i]) {
string data;
imreader.read(path, &data);
if (data.empty()) {
LOG(ERROR) << "not a image: " << path;
continue;
}
picpac::Record rec(i, data);
db.append(rec);
++count;
}
}
}
else {
fs::ifstream is(input_path.c_str());
string line;
while (getline(is, line)) {
vector<string> ss;
split(ss, line, is_any_of("\t"), token_compress_off);
if (ss.size() != 2) {
cerr << "Bad line: " << line << endl;
continue;
}
try {
fs::path path = downloader.download(ss[0]);
string data;
imreader.read(path, &data);
if (data.empty()) {
LOG(ERROR) << "not a image: " << path;
continue;
}
if (format == FORMAT_LIST) {
float l = lexical_cast<float>(ss[1]);
Record record(l, data);
db.append(record);
}
else if (format == FORMAT_ANNO_JSON) {
Record record(0, data, ss[1]);
db.append(record);
}
else if (format == FORMAT_ANNO_IMAGE) {
string data2;
if (ss[1].size()) {
fs::path path2 = downloader.download(ss[1]);
imreader.read(path2, &data2);
}
Record record(0, data, data2);
db.append(record);
}
++count;
}
catch (...) {
LOG(ERROR) << "Fail to load " << ss[0];
}
}
}
LOG(INFO) << "Loaded " << count << " samples.";
return 0;
}