227 lines
6.6 KiB
C++
227 lines
6.6 KiB
C++
// Copyright 2018 Slightech Co., Ltd. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <opencv2/highgui/highgui.hpp>
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#include <opencv2/imgproc/imgproc.hpp>
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#include "mynteye/api/api.h"
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namespace {
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class DepthRegion {
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public:
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explicit DepthRegion(std::uint32_t n)
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: n_(std::move(n)), show_(false), selected_(false), point_(0, 0) {}
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~DepthRegion() = default;
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/**
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* 鼠标事件：默认不选中区域，随鼠标移动而显示。单击后，则会选中区域来显示。你可以再单击已选中区域或双击未选中区域，取消选中。
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*/
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void OnMouse(const int &event, const int &x, const int &y, const int &flags) {
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MYNTEYE_UNUSED(flags)
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if (event != cv::EVENT_MOUSEMOVE && event != cv::EVENT_LBUTTONDOWN) {
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return;
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}
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show_ = true;
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if (event == cv::EVENT_MOUSEMOVE) {
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if (!selected_) {
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point_.x = x;
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point_.y = y;
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}
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} else if (event == cv::EVENT_LBUTTONDOWN) {
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if (selected_) {
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if (x >= static_cast<int>(point_.x - n_) &&
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x <= static_cast<int>(point_.x + n_) &&
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y >= static_cast<int>(point_.y - n_) &&
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y <= static_cast<int>(point_.y + n_)) {
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selected_ = false;
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}
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} else {
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selected_ = true;
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}
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point_.x = x;
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point_.y = y;
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}
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}
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template <typename T>
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void ShowElems(
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const cv::Mat &depth,
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std::function<std::string(const T &elem)> elem2string,
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int elem_space = 40,
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std::function<std::string(
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const cv::Mat &depth, const cv::Point &point, const std::uint32_t &n)>
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getinfo = nullptr) {
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if (!show_)
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return;
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int space = std::move(elem_space);
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int n = 2 * n_ + 1;
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cv::Mat im(space * n, space * n, CV_8UC3, cv::Scalar(255, 255, 255));
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int x, y;
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std::string str;
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int baseline = 0;
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for (int i = -n_; i <= n; ++i) {
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x = point_.x + i;
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if (x < 0 || x >= depth.cols)
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continue;
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for (int j = -n_; j <= n; ++j) {
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y = point_.y + j;
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if (y < 0 || y >= depth.rows)
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continue;
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str = elem2string(depth.at<T>(y, x));
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cv::Scalar color(0, 0, 0);
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if (i == 0 && j == 0)
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color = cv::Scalar(0, 0, 255);
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cv::Size sz =
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cv::getTextSize(str, cv::FONT_HERSHEY_PLAIN, 1, 1, &baseline);
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cv::putText(
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im, str, cv::Point(
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(i + n_) * space + (space - sz.width) / 2,
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(j + n_) * space + (space + sz.height) / 2),
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cv::FONT_HERSHEY_PLAIN, 1, color, 1);
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}
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}
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if (getinfo) {
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std::string info = getinfo(depth, point_, n_);
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if (!info.empty()) {
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cv::Size sz =
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cv::getTextSize(info, cv::FONT_HERSHEY_PLAIN, 1, 1, &baseline);
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cv::putText(
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im, info, cv::Point(5, 5 + sz.height), cv::FONT_HERSHEY_PLAIN, 1,
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cv::Scalar(255, 0, 255), 1);
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}
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}
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cv::imshow("region", im);
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}
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void DrawRect(cv::Mat &image) { // NOLINT
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if (!show_)
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return;
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std::uint32_t n = (n_ > 1) ? n_ : 1;
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n += 1; // outside the region
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cv::rectangle(
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image, cv::Point(point_.x - n, point_.y - n),
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cv::Point(point_.x + n, point_.y + n),
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selected_ ? cv::Scalar(0, 255, 0) : cv::Scalar(0, 0, 255), 1);
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}
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private:
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std::uint32_t n_;
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bool show_;
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bool selected_;
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cv::Point point_;
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};
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void OnDepthMouseCallback(int event, int x, int y, int flags, void *userdata) {
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DepthRegion *region = reinterpret_cast<DepthRegion *>(userdata);
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region->OnMouse(event, x, y, flags);
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}
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} // namespace
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MYNTEYE_USE_NAMESPACE
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int main(int argc, char *argv[]) {
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auto &&api = API::Create(argc, argv);
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if (!api) return 1;
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bool ok;
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auto &&request = api->SelectStreamRequest(&ok);
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if (!ok) return 1;
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api->ConfigStreamRequest(request);
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api->SetOptionValue(Option::IR_CONTROL, 80);
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api->EnableStreamData(Stream::DISPARITY_NORMALIZED);
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api->EnableStreamData(Stream::DEPTH);
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api->Start(Source::VIDEO_STREAMING);
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cv::namedWindow("frame");
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cv::namedWindow("depth");
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cv::namedWindow("region");
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DepthRegion depth_region(3);
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auto depth_info = [](
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const cv::Mat &depth, const cv::Point &point, const std::uint32_t &n) {
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MYNTEYE_UNUSED(depth)
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std::ostringstream os;
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os << "depth pos: [" << point.y << ", " << point.x << "]"
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<< "±" << n << ", unit: mm";
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return os.str();
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};
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while (true) {
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api->WaitForStreams();
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auto &&left_data = api->GetStreamData(Stream::LEFT);
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auto &&right_data = api->GetStreamData(Stream::RIGHT);
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cv::Mat img;
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cv::hconcat(left_data.frame, right_data.frame, img);
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cv::imshow("frame", img);
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auto &&disp_data = api->GetStreamData(Stream::DISPARITY_NORMALIZED);
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auto &&depth_data = api->GetStreamData(Stream::DEPTH);
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if (!disp_data.frame.empty() && !depth_data.frame.empty()) {
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// Show disparity instead of depth, but show depth values in region.
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auto &&depth_frame = disp_data.frame;
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#ifdef WITH_OPENCV3
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// ColormapTypes
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// http://docs.opencv.org/master/d3/d50/group__imgproc__colormap.html#ga9a805d8262bcbe273f16be9ea2055a65
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cv::applyColorMap(depth_frame, depth_frame, cv::COLORMAP_JET);
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#endif
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cv::setMouseCallback("depth", OnDepthMouseCallback, &depth_region);
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// Note: DrawRect will change some depth values to show the rect.
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depth_region.DrawRect(depth_frame);
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cv::imshow("depth", depth_frame);
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depth_region.ShowElems<ushort>(
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depth_data.frame,
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[](const ushort &elem) {
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if (elem >= 10000) {
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// Filter errors, or limit to valid range.
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//
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// reprojectImageTo3D(), missing values will set to 10000
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// https://docs.opencv.org/master/d9/d0c/group__calib3d.html#ga1bc1152bd57d63bc524204f21fde6e02
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return std::string("invalid");
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}
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return std::to_string(elem);
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},
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80, depth_info);
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}
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char key = static_cast<char>(cv::waitKey(1));
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if (key == 27 || key == 'q' || key == 'Q') { // ESC/Q
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break;
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}
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}
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api->Stop(Source::VIDEO_STREAMING);
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return 0;
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}
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