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ea64bb58a5
* Refactor render tests * Fix comment to review * Move ocv render tests stuff to specific file * Add OCV prefix for render tests * Fix comments to review
57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
// 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::Mat msc_roi = mat(rect);
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int crop_x = msc_roi.cols - msc_roi.cols % cellSz;
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int crop_y = msc_roi.rows - msc_roi.rows % cellSz;
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for(int i = 0; i < crop_y; i += cellSz ) {
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for(int j = 0; j < crop_x; j += cellSz) {
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auto 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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}
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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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