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#include <iostream>
#include <string>
#include <boost/program_options.hpp>
#include <opencv2/highgui/highgui.hpp>
#include "UprightDiff.h"
namespace po = boost::program_options;
struct MainOptions {
enum {
NONE,
TEXT,
JSON
} format = TEXT;
std::string aliceName;
std::string bobName;
std::string destName;
};
bool processCommandLine(int argc, char** argv,
MainOptions & mainOptions, UprightDiff::Options & diffOptions);
int main(int argc, char** argv) {
MainOptions mainOptions;
UprightDiff::Options diffOptions;
try {
if (!processCommandLine(argc, argv, mainOptions, diffOptions)) {
return 1;
}
} catch (po::error & e) {
std::cerr << "Error: " << e.what() << "\n";
return 1;
}
cv::Mat alice = cv::imread(mainOptions.aliceName);
cv::Mat bob = cv::imread(mainOptions.bobName);
UprightDiff::Output output;
try {
UprightDiff::Diff(alice, bob, diffOptions, output);
} catch (std::runtime_error & e) {
std::cerr << "Error: " << e.what() << "\n";
return 1;
}
cv::imwrite(mainOptions.destName, output.visual);
if (mainOptions.format == MainOptions::TEXT) {
std::cout << "Total area: " << output.totalArea << " pixels\n";
std::cout << "Modified area: " << output.maskArea << " pixels\n";
std::cout << "Moved area: " << output.movedArea << " pixels\n";
std::cout << "Residual area: " << output.residualArea << " pixels\n";
} else if (mainOptions.format == MainOptions::JSON) {
std::cout <<
"{\"totalArea\":" << output.totalArea << "," <<
"\"modifiedArea\":" << output.maskArea << "," <<
"\"movedArea\":" << output.movedArea << "," <<
"\"residualArea\":" << output.residualArea << "}\n";
}
}
bool processCommandLine(int argc, char** argv,
MainOptions & mainOptions, UprightDiff::Options & diffOptions)
{
po::options_description visible;
std::string format;
visible.add_options()
("help",
"Show help message and exit")
("block-size", po::value<int>(&diffOptions.blockSize),
"Block size for initial search (default 16)")
("window-size", po::value<int>(&diffOptions.windowSize),
"Initial range for vertical motion detection (default 200)")
("brush-width", po::value<int>(&diffOptions.brushWidth),
"Brush width when heuristically expanding blocks. "
"A higher value gives smoother motion regions. "
"This should be an odd number. (default 9)")
("outer-hl-window", po::value<int>(&diffOptions.outerHighlightWindow),
"The size of the outer square used for detecting isolated small features to highlight. "
"This size defines what we mean by \"isolated\". It should be an odd number. (default 21)")
("inner-hl-window", po::value<int>(&diffOptions.innerHighlightWindow),
"The size of the inner square used for detecting isolated small features to highlight. "
"This size defines what we mean by \"small\". It should be an odd number. (default 5)")
("intermediate-dir", po::value<std::string>(&diffOptions.intermediateDir),
"A directory where intermediate images should be placed. "
"This is our equivalent of debug or trace output.")
("verbose,v",
"Write progress info to stderr.")
("format", po::value<std::string>(&format),
"The output format for statistics, may be text (the default), json or none.")
("log-timestamp,t", po::bool_switch(&diffOptions.logTimestamp),
"Annotate progress info with elapsed time.")
;
po::options_description invisible;
invisible.add_options()
("alice", po::value<std::string>(&mainOptions.aliceName))
("bob", po::value<std::string>(&mainOptions.bobName))
("dest", po::value<std::string>(&mainOptions.destName))
;
po::options_description allDesc;
allDesc.add(visible).add(invisible);
po::positional_options_description positionalDesc;
positionalDesc
.add("alice", 1)
.add("bob", 1)
.add("dest", 1)
;
po::variables_map vm;
po::store(po::command_line_parser(argc, argv)
.options(allDesc)
.positional(positionalDesc)
.run(), vm);
po::notify(vm);
if (vm.count("help")) {
std::cout << "Usage: " << (argc >= 1 ? argv[0] : "uprightdiff" )
<< " [options] <input-1> <input-2> <output>\n"
<< "Accepted options are:\n"
<< visible;
return false;
}
if (vm.count("verbose")) {
diffOptions.logLevel = Logger::INFO;
}
if (!(vm.count("alice") && vm.count("bob") && vm.count("dest"))) {
std::cerr << "Error: two input filenames and an output filename must be specified.\n";
return false;
}
if (vm.count("format")) {
if (format == "text") {
mainOptions.format = MainOptions::TEXT;
} else if (format == "json") {
mainOptions.format = MainOptions::JSON;
} else if (format == "none") {
mainOptions.format = MainOptions::NONE;
} else {
std::cerr << "Error: --format must be text, json or none\n";
return false;
}
}
return true;
}
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