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acquire_images.cpp
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acquire_images.cpp
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// A program to acquire a number of images from an SBIG detector.
// Author: Philip Salvaggio
#include "mats.h"
#include "io/shell.h"
#include <iostream>
#include <opencv2/opencv.hpp>
#include <gflags/gflags.h>
using namespace std;
using namespace cv;
using mats_io::SbigDetector;
DEFINE_int32(exposure_time, 1000, "Exposure time [hundreths of a second]");
static int frame_index = 0;
static bool is_cooled = false;
void die(short, short) {
cout << "Shutting down due to error." << endl;
exit(1);
}
void AcquireImages(SbigDetector& detector) {
cout << "Acquisition Type:" << endl
<< " n > 0: Acquire n images" << endl
<< " n = 0: On-demand (Enter to capture, q to quit)" << endl
<< " n < 0: Abort" << endl;
int num_images;
string output_dir = ".";
cout << "Acquisition Type: ";
cin >> num_images;
if (num_images < 0) return;
cout << "Output Directory: ";
cin >> output_dir;
output_dir = mats::ResolvePath(output_dir);
// Grab the size of the detector.
uint16_t fr_width, fr_height;
detector.GetSize(fr_width, fr_height);
vector<uint16_t> roi{0, 0, fr_width, fr_height};
auto Save = [&output_dir] (Mat& image, int frame_num) {
string filename =
mats::StringPrintf("%sframe%03d.png", output_dir.c_str(), frame_num);
imwrite(filename, image);
cout << "Acquired frame " << frame_num << endl;
};
Mat full_frame;
if (num_images == 0) {
cin.get();
int key;
do {
key = cin.get();
if (key == '\n') {
detector.Capture(0, 0, fr_width, fr_height, FLAGS_exposure_time,
&full_frame);
Save(full_frame, frame_index++);
}
} while (key != 'q');
} else {
for (int i = 0; i < num_images; i++) {
detector.Capture(0, 0, fr_width, fr_height, FLAGS_exposure_time,
&full_frame);
Save(full_frame, frame_index++);
}
}
}
void OutputMenu() {
cout << "Commands:" << endl
<< " acquire: Acquire image" << endl
<< " set_exposure: Set the exposure time" << endl
<< " cool: Cool the detector" << endl
<< " warm: Warm the detector" << endl
<< " help: Reprint this menu" << endl
<< " exit: Quit" << endl;
}
void SetIntegrationTime() {
cout << "Integration Time [hundreths of a second]: ";
int int_time;
if (cin >> int_time) {
if (int_time >= 9) {
FLAGS_exposure_time = int_time;
} else {
cerr << "Error: integration time must be greater than .09 seconds."
<< endl;
}
} else {
cerr << "Invalid Value." << endl;
}
}
class AcquireImagesDelegate {
public:
explicit AcquireImagesDelegate(SbigDetector& detector)
: detector_(detector) {}
void ProcessCommand(const vector<string>& command_parts) {
if (command_parts.empty()) return;
if (command_parts[0] == "acquire") {
AcquireImages(detector_);
} else if (command_parts[0] == "set_exposure") {
SetIntegrationTime();
} else if (command_parts[0] == "cool") {
if (!is_cooled) detector_.Cool(-15);
is_cooled = true;
} else if (command_parts[0] == "warm") {
if (is_cooled) detector_.DisableCooling();
is_cooled = false;
} else if (command_parts[0] == "help") {
OutputMenu();
} else {
cerr << "Unrecognized command: " << command_parts[0] << endl;
}
}
private:
SbigDetector& detector_;
};
int main(int argc, char** argv) {
google::ParseCommandLineFlags(&argc, &argv, true);
// Connect to the detector.
SbigDetector detector;
if (detector.has_error()) return 1;
detector.set_error_callback(die);
unique_ptr<AcquireImagesDelegate> delegate(
new AcquireImagesDelegate(detector));
mats_io::Shell<AcquireImagesDelegate> shell(move(delegate));
OutputMenu();
shell.SetPrompt("> ");
shell.execute();
if (is_cooled) detector.DisableCooling();
return 0;
}