mirror of
https://github.com/opencv/opencv_contrib.git
synced 2025-10-20 04:25:42 +08:00
67815e94c8
FastCV Extension code for OpenCV 2ndpost-1 #3844 Depends on: [opencv/opencv#26617](https://github.com/opencv/opencv/pull/26617) Requires binary from [opencv/opencv_3rdparty#90](https://github.com/opencv/opencv_3rdparty/pull/90) ### 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 - [ ] The PR is proposed to the proper branch - [ ] 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
70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
/*
|
|
* Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include "test_precomp.hpp"
|
|
|
|
namespace opencv_test { namespace {
|
|
|
|
typedef testing::TestWithParam<cv::Size> WarpPerspective2Plane;
|
|
|
|
TEST_P(WarpPerspective2Plane, accuracy)
|
|
{
|
|
cv::Size dstSize = GetParam();
|
|
cv::Mat img = imread(cvtest::findDataFile("cv/shared/baboon.png"));
|
|
Mat src(img.rows, img.cols, CV_8UC1);
|
|
cvtColor(img,src,cv::COLOR_BGR2GRAY);
|
|
cv::Mat dst1, dst2, mat, ref1, ref2;
|
|
mat.create(3,3,CV_32FC1);
|
|
dst1.create(dstSize,CV_8UC1);
|
|
dst2.create(dstSize,CV_8UC1);
|
|
|
|
RNG rng = RNG((uint64)-1);
|
|
Point2f s[4], d[4];
|
|
|
|
s[0] = Point2f(0,0);
|
|
d[0] = Point2f(0,0);
|
|
s[1] = Point2f(src.cols-1.f,0);
|
|
d[1] = Point2f(dst1.cols-1.f,0);
|
|
s[2] = Point2f(src.cols-1.f,src.rows-1.f);
|
|
d[2] = Point2f(dst1.cols-1.f,dst1.rows-1.f);
|
|
s[3] = Point2f(0,src.rows-1.f);
|
|
d[3] = Point2f(0,dst1.rows-1.f);
|
|
|
|
float buffer[16];
|
|
Mat tmp( 1, 16, CV_32FC1, buffer );
|
|
rng.fill( tmp, 1, Scalar::all(0.), Scalar::all(0.1) );
|
|
|
|
for(int i = 0; i < 4; i++ )
|
|
{
|
|
s[i].x += buffer[i*4]*src.cols/2;
|
|
s[i].y += buffer[i*4+1]*src.rows/2;
|
|
d[i].x += buffer[i*4+2]*dst1.cols/2;
|
|
d[i].y += buffer[i*4+3]*dst1.rows/2;
|
|
}
|
|
|
|
cv::getPerspectiveTransform( s, d ).convertTo( mat, mat.depth() );
|
|
// Invert the perspective matrix
|
|
invert(mat,mat);
|
|
|
|
cv::fastcv::warpPerspective2Plane(src, src, dst1, dst2, mat, dstSize);
|
|
cv::warpPerspective(src,ref1,mat,dstSize,(cv::INTER_LINEAR | cv::WARP_INVERSE_MAP));
|
|
cv::warpPerspective(src,ref2,mat,dstSize,(cv::INTER_LINEAR | cv::WARP_INVERSE_MAP));
|
|
|
|
cv::Mat difference1, difference2, mask1,mask2;
|
|
cv::absdiff(dst1, ref1, difference1);
|
|
cv::absdiff(dst2, ref2, difference2);
|
|
cv::threshold(difference1, mask1, 5, 255, cv::THRESH_BINARY);
|
|
cv::threshold(difference2, mask2, 5, 255, cv::THRESH_BINARY);
|
|
int num_diff_pixels_1 = cv::countNonZero(mask1);
|
|
int num_diff_pixels_2 = cv::countNonZero(mask2);
|
|
|
|
EXPECT_LT(num_diff_pixels_1, src.size().area()*0.02);
|
|
EXPECT_LT(num_diff_pixels_2, src.size().area()*0.02);
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(FastCV_Extension, WarpPerspective2Plane, Values(perf::szVGA, perf::sz720p, perf::sz1080p));
|
|
|
|
}
|
|
} |