MYNT-EYE-S-SDK/samples/tutorials/control/auto_exposure.cc

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// Copyright 2018 Slightech Co., Ltd. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <opencv2/highgui/highgui.hpp>
#include "mynteye/api.h"
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#include "mynteye/logger.h"
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#include "util/cv_painter.h"
MYNTEYE_USE_NAMESPACE
int main(int argc, char *argv[]) {
auto &&api = API::Create(argc, argv);
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if (!api)
return 1;
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// auto-exposure: 0
api->SetOptionValue(Option::EXPOSURE_MODE, 0);
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// max_gain: range [0,48], default 48
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api->SetOptionValue(Option::MAX_GAIN, 48);
// max_exposure_time: range [0,240], default 240
api->SetOptionValue(Option::MAX_EXPOSURE_TIME, 240);
// desired_brightness: range [0,255], default 192
api->SetOptionValue(Option::DESIRED_BRIGHTNESS, 192);
LOG(INFO) << "Enable auto-exposure";
LOG(INFO) << "Set MAX_GAIN to " << api->GetOptionValue(Option::MAX_GAIN);
LOG(INFO) << "Set MAX_EXPOSURE_TIME to "
<< api->GetOptionValue(Option::MAX_EXPOSURE_TIME);
LOG(INFO) << "Set DESIRED_BRIGHTNESS to "
<< api->GetOptionValue(Option::DESIRED_BRIGHTNESS);
api->Start(Source::VIDEO_STREAMING);
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CVPainter painter(api->GetOptionValue(Option::FRAME_RATE));
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cv::namedWindow("frame");
while (true) {
api->WaitForStreams();
auto &&left_data = api->GetStreamData(Stream::LEFT);
auto &&right_data = api->GetStreamData(Stream::RIGHT);
cv::Mat img;
cv::hconcat(left_data.frame, right_data.frame, img);
painter.DrawImgData(img, *left_data.img);
cv::imshow("frame", img);
char key = static_cast<char>(cv::waitKey(1));
if (key == 27 || key == 'q' || key == 'Q') { // ESC/Q
break;
}
}
api->Stop(Source::VIDEO_STREAMING);
return 0;
}