opencv 根据仿射变换矩阵计算新坐标点
opencv
OpenCV: 开源计算机视觉库
项目地址:https://gitcode.com/gh_mirrors/opencv31/opencv

·
# 计算经过仿射变换新的boxes
# boxes表示原始坐标点,target_point表示经过仿射变换后新的坐标点
pts = np.float32(boxes).reshape([-1, 2]) # 要映射的点
pts = np.hstack([pts, np.ones([len(pts), 1])]).T
target_point = np.dot(RotateMatrix, pts) # 映射后的坐标
opencv
OpenCV: 开源计算机视觉库
项目地址:https://gitcode.com/gh_mirrors/opencv31/opencv
//src_point表示原图的坐标点,result表示经过仿射变换后的新坐标点
cv::Mat src_point{460.0, 445.0};
src_point = src_point.reshape(1, 2);
cv::Mat A_Matrix = RotateMatrix(cv::Rect(0, 0, 2, 2));
cv::Mat B_Matrix = RotateMatrix.col(2);
cv::Mat result = A_Matrix * src_point+ B_Matrix;




OpenCV: 开源计算机视觉库
最近提交(Master分支:7 个月前 )
6ef57463
Migrated IPP impl for flip and transpose to HAL 3 天前
c1d71d53
imgproc: disable SIMD for compareHist(INTERSECT) if f64 is unsupported #27220
Close https://github.com/opencv/opencv/issues/24757
### 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
- [x] 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
3 天前
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opencv

OpenCV: 开源计算机视觉库
opencv

opencv

R bindings for OpenCV
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