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dbd4e4549d
APNG encoding optimization #26849 related #26840 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [x] There is a reference to the original bug report and related work - [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [ ] The feature is well documented and sample code can be built with the project CMake
69 lines
1.9 KiB
C++
69 lines
1.9 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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#include "test_precomp.hpp"
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#include "test_common.hpp"
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namespace opencv_test {
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static
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Mat generateTestImageBGR_()
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{
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Size sz(640, 480);
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Mat result(sz, CV_8UC3, Scalar::all(0));
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const string fname = cvtest::findDataFile("../cv/shared/baboon.png");
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Mat image = imread(fname, IMREAD_COLOR);
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CV_Assert(!image.empty());
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CV_CheckEQ(image.size(), Size(512, 512), "");
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Rect roi((640-512) / 2, 0, 512, 480);
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image(Rect(0, 0, 512, 480)).copyTo(result(roi));
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result(Rect(0, 0, 5, 5)).setTo(Scalar(0, 0, 255)); // R
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result(Rect(5, 0, 5, 5)).setTo(Scalar(0, 255, 0)); // G
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result(Rect(10, 0, 5, 5)).setTo(Scalar(255, 0, 0)); // B
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result(Rect(0, 5, 5, 5)).setTo(Scalar(128, 128, 128)); // gray
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//imshow("test_image", result); waitKey();
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return result;
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}
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Mat generateTestImageBGR()
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{
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static Mat image = generateTestImageBGR_(); // initialize once
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CV_Assert(!image.empty());
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return image;
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}
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static
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Mat generateTestImageGrayscale_()
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{
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Mat imageBGR = generateTestImageBGR();
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CV_Assert(!imageBGR.empty());
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Mat result;
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cvtColor(imageBGR, result, COLOR_BGR2GRAY);
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return result;
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}
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Mat generateTestImageGrayscale()
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{
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static Mat image = generateTestImageGrayscale_(); // initialize once
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return image;
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}
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void readFileBytes(const std::string& fname, std::vector<unsigned char>& buf)
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{
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FILE * wfile = fopen(fname.c_str(), "rb");
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if (wfile != NULL)
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{
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fseek(wfile, 0, SEEK_END);
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size_t wfile_size = ftell(wfile);
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fseek(wfile, 0, SEEK_SET);
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buf.resize(wfile_size);
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size_t data_size = fread(&buf[0], 1, wfile_size, wfile);
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fclose(wfile);
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EXPECT_EQ(data_size, wfile_size);
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}
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}
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} // namespace
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