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#include "convert_idl.h"
#include "dlib/data_io.h"
#include <iostream>
#include <string>
#include <dlib/dir_nav.h>
#include <dlib/time_this.h>
using namespace std;
using namespace dlib;
namespace
{
using namespace dlib::image_dataset_metadata;
// ----------------------------------------------------------------------------------------
inline bool next_is_number(std::istream& in)
{
return ('0' <= in.peek() && in.peek() <= '9') || in.peek() == '-' || in.peek() == '+';
}
int read_int(std::istream& in)
{
bool is_neg = false;
if (in.peek() == '-')
{
is_neg = true;
in.get();
}
if (in.peek() == '+')
in.get();
int val = 0;
while ('0' <= in.peek() && in.peek() <= '9')
{
val = 10*val + in.get()-'0';
}
if (is_neg)
return -val;
else
return val;
}
// ----------------------------------------------------------------------------------------
void parse_annotation_file(
const std::string& file,
dlib::image_dataset_metadata::dataset& data
)
{
ifstream fin(file.c_str());
if (!fin)
throw dlib::error("Unable to open file " + file);
bool in_quote = false;
int point_count = 0;
bool in_point_list = false;
bool saw_any_points = false;
image img;
string label;
point p1,p2;
while (fin.peek() != EOF)
{
if (in_point_list && next_is_number(fin))
{
const int val = read_int(fin);
switch (point_count)
{
case 0: p1.x() = val; break;
case 1: p1.y() = val; break;
case 2: p2.x() = val; break;
case 3: p2.y() = val; break;
default:
throw dlib::error("parse error in file " + file);
}
++point_count;
}
char ch = fin.get();
if (ch == ':')
continue;
if (ch == '"')
{
in_quote = !in_quote;
continue;
}
if (in_quote)
{
img.filename += ch;
continue;
}
if (ch == '(')
{
in_point_list = true;
point_count = 0;
label.clear();
saw_any_points = true;
}
if (ch == ')')
{
in_point_list = false;
label.clear();
while (fin.peek() != EOF &&
fin.peek() != ';' &&
fin.peek() != ',')
{
char ch = fin.get();
if (ch == ':')
continue;
label += ch;
}
}
if (ch == ',' && !in_point_list)
{
box b;
b.rect = rectangle(p1,p2);
b.label = label;
img.boxes.push_back(b);
}
if (ch == ';')
{
if (saw_any_points)
{
box b;
b.rect = rectangle(p1,p2);
b.label = label;
img.boxes.push_back(b);
saw_any_points = false;
}
data.images.push_back(img);
img.filename.clear();
img.boxes.clear();
}
}
}
// ----------------------------------------------------------------------------------------
}
void convert_idl(
const parser_type& parser
)
{
cout << "Convert from IDL annotation format..." << endl;
dlib::image_dataset_metadata::dataset dataset;
for (unsigned long i = 0; i < parser.number_of_arguments(); ++i)
{
parse_annotation_file(parser[i], dataset);
}
const std::string filename = parser.option("c").argument();
save_image_dataset_metadata(dataset, filename);
}