98 lines
2.6 KiB
C++
98 lines
2.6 KiB
C++
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// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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//
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// Copyright (C) 2019 Intel Corporation
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#include "../test_precomp.hpp"
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#include "gapi_render_tests.hpp"
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namespace opencv_test
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{
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cv::Scalar cvtBGRToYUVC(const cv::Scalar& bgr)
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{
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double y = bgr[2] * 0.299000 + bgr[1] * 0.587000 + bgr[0] * 0.114000;
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double u = bgr[2] * -0.168736 + bgr[1] * -0.331264 + bgr[0] * 0.500000 + 128;
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double v = bgr[2] * 0.500000 + bgr[1] * -0.418688 + bgr[0] * -0.081312 + 128;
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return {y, u, v};
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}
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void drawMosaicRef(const cv::Mat& mat, const cv::Rect &rect, int cellSz)
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{
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cv::Rect mat_rect(0, 0, mat.cols, mat.rows);
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auto intersection = mat_rect & rect;
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cv::Mat msc_roi = mat(intersection);
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bool has_crop_x = false;
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bool has_crop_y = false;
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int cols = msc_roi.cols;
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int rows = msc_roi.rows;
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if (msc_roi.cols % cellSz != 0)
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{
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has_crop_x = true;
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cols -= msc_roi.cols % cellSz;
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}
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if (msc_roi.rows % cellSz != 0)
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{
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has_crop_y = true;
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rows -= msc_roi.rows % cellSz;
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}
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cv::Mat cell_roi;
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for(int i = 0; i < rows; i += cellSz )
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{
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for(int j = 0; j < cols; j += cellSz)
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{
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cell_roi = msc_roi(cv::Rect(j, i, cellSz, cellSz));
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cell_roi = cv::mean(cell_roi);
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}
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if (has_crop_x)
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{
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cell_roi = msc_roi(cv::Rect(cols, i, msc_roi.cols - cols, cellSz));
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cell_roi = cv::mean(cell_roi);
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}
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}
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if (has_crop_y)
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{
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for(int j = 0; j < cols; j += cellSz)
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{
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cell_roi = msc_roi(cv::Rect(j, rows, cellSz, msc_roi.rows - rows));
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cell_roi = cv::mean(cell_roi);
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}
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if (has_crop_x)
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{
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cell_roi = msc_roi(cv::Rect(cols, rows, msc_roi.cols - cols, msc_roi.rows - rows));
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cell_roi = cv::mean(cell_roi);
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}
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}
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}
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void blendImageRef(cv::Mat& mat, const cv::Point& org, const cv::Mat& img, const cv::Mat& alpha)
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{
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auto roi = mat(cv::Rect(org, img.size()));
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cv::Mat img32f_w;
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cv::merge(std::vector<cv::Mat>(3, alpha), img32f_w);
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cv::Mat roi32f_w(roi.size(), CV_32FC3, cv::Scalar::all(1.0));
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roi32f_w -= img32f_w;
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cv::Mat img32f, roi32f;
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img.convertTo(img32f, CV_32F, 1.0/255);
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roi.convertTo(roi32f, CV_32F, 1.0/255);
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cv::multiply(img32f, img32f_w, img32f);
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cv::multiply(roi32f, roi32f_w, roi32f);
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roi32f += img32f;
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roi32f.convertTo(roi, CV_8U, 255.0);
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};
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} // namespace opencv_test
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