| // Copyright (c) 2022, ETH Zurich and UNC Chapel Hill. | |
| // All rights reserved. | |
| // | |
| // Redistribution and use in source and binary forms, with or without | |
| // modification, are permitted provided that the following conditions are met: | |
| // | |
| // * Redistributions of source code must retain the above copyright | |
| // notice, this list of conditions and the following disclaimer. | |
| // | |
| // * Redistributions in binary form must reproduce the above copyright | |
| // notice, this list of conditions and the following disclaimer in the | |
| // documentation and/or other materials provided with the distribution. | |
| // | |
| // * Neither the name of ETH Zurich and UNC Chapel Hill nor the names of | |
| // its contributors may be used to endorse or promote products derived | |
| // from this software without specific prior written permission. | |
| // | |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE | |
| // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| // POSSIBILITY OF SUCH DAMAGE. | |
| // | |
| // Author: Johannes L. Schoenberger (jsch-at-demuc-dot-de) | |
| namespace colmap { | |
| MatchMatrixWidget::MatchMatrixWidget(QWidget* parent, OptionManager* options) | |
| : ImageViewerWidget(parent), options_(options) { | |
| setWindowTitle("Match matrix"); | |
| } | |
| void MatchMatrixWidget::Show() { | |
| Database database(*options_->database_path); | |
| if (database.NumImages() == 0) { | |
| return; | |
| } | |
| // Sort the images according to their name. | |
| std::vector<Image> images = database.ReadAllImages(); | |
| std::sort(images.begin(), images.end(), | |
| [](const Image& image1, const Image& image2) { | |
| return image1.Name() < image2.Name(); | |
| }); | |
| // Allocate the match matrix image. | |
| Bitmap match_matrix; | |
| match_matrix.Allocate(images.size(), images.size(), true); | |
| match_matrix.Fill(BitmapColor<uint8_t>(255)); | |
| // Map image identifiers to match matrix locations. | |
| std::unordered_map<image_t, size_t> image_id_to_idx; | |
| for (size_t idx = 0; idx < images.size(); ++idx) { | |
| image_id_to_idx.emplace(images[idx].ImageId(), idx); | |
| } | |
| std::vector<std::pair<image_t, image_t>> image_pairs; | |
| std::vector<int> num_inliers; | |
| database.ReadTwoViewGeometryNumInliers(&image_pairs, &num_inliers); | |
| // Fill the match matrix. | |
| if (!num_inliers.empty()) { | |
| const double max_value = | |
| std::log1p(*std::max_element(num_inliers.begin(), num_inliers.end())); | |
| for (size_t i = 0; i < image_pairs.size(); ++i) { | |
| const double value = std::log1p(num_inliers[i]) / max_value; | |
| const size_t idx1 = image_id_to_idx.at(image_pairs[i].first); | |
| const size_t idx2 = image_id_to_idx.at(image_pairs[i].second); | |
| const BitmapColor<float> color(255 * JetColormap::Red(value), | |
| 255 * JetColormap::Green(value), | |
| 255 * JetColormap::Blue(value)); | |
| match_matrix.SetPixel(idx1, idx2, color.Cast<uint8_t>()); | |
| match_matrix.SetPixel(idx2, idx1, color.Cast<uint8_t>()); | |
| } | |
| } | |
| ShowBitmap(match_matrix); | |
| } | |
| } // namespace colmap | |