superfly's profile - activity

No prob with this:

cv::line(color_img, points[0], points[1], Scalar(255, 255, 255), 1, LINE_8, 0);

How can I extend the line beyond each point(s). A different OpenCV fx?

Update: I get it now. Once I broke apart the range it made a lot more sense, programmatically as well.

Thanks for the answer. Wanted to further clarify implementation. Does P need to be an array of points? e Point2d P;

Thanks for the answer. Wanted to further clarify implementation. Does P need to be an array of points? Point2d P;

line extension beyond 2 points how to extrapolate No prob with this: cv::line(color_img, points[0], points[1], Scalar(2

I haven't had any problem with current opencv until I tried to use for the first time: cv::drawFrameAxes(...

Compiler VS2017

Error C3861 'drawFrameAxes': identifier not found solutionTransformObjPoints Error C2039 'drawFrameAxes': is not a member of 'cv' solutionTransformObjPoints c:\users\clang\desktop\working folder\solutiontransformobjpoints\solutiontransformobjpoints\solutiontransformobjpoints.cpp 263

Can any one help me fix this? I don't want to break this installation over a module.

General configuration for OpenCV 3.4.1 ===================================== Version control: 3.4.1

Platform: Timestamp: 2018-02-23T13:47:28Z Host: Windows 10.0.16299 AMD64 CMake: 3.9.3 CMake generator: Visual Studio 15 2017 Win64 CMake build tool: C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional/MSBuild/15.0/Bin/MSBu

Ok, so to benefit from the drawFrameAxes function per Berak's assessment I reluctantly at first upgraded to Opencv 4.4.

Thank you. Can you please recommend a site/tutorial that you trust for upgrading opencv, if that's allowed?

how do I add missing module without breaking installation I haven't had any problem with current opencv until I tried to

how do I add missing module without breaking installation I haven't had any problem with current opencv until I tried to

CV_FX, CV_FY, CV_CX, CV_CY belong to K (camera intrinsics). class Plane { public: Vec3d cal_vector(Point3d

result coordinate type I have been making intersection point calculations between parametric line eqs and planes in open

This may be a nomenclature issue for me. When you state "camera frame" do you mean camera space coordinates? And when yo

Thank you, read this before and successfully modeled it. What I m getting at is less theoretical: what will inverting po

Thank you, read this before and successfully modeled it. What I m getting at is less theoretical: what will inverting po

Thank you, read this before. I have successfully modeled this with OpenCV. What I m getting at is what inverting pose wi

If you are thresholding the dot detection for brightness, shape roundness and of a small area, and have an IR bandpass s

why invert pose I have a pose output from solvepnp(), not a prob. Many sources suggest to take the inverse of the pose.

why invert pose I have a pose output from solvepnp(), not a prob. Many sources suggest to take the inverse of the pose.

Cx, Cy not equal to specs? My K(intrinsic parameter) from opencv calibration is CX = 378.322 and CY = 222.498. Imager re

One vector of the line should be a direction vector, and this is v. The second point Po can be anywhere on the line that

One vector of the line should be a direction vector, and this is v. The second point Po can be anywhere on the line that

4 x 4 or 3 x 4 format? I have a 3 x 4 matrix of -R|t information. Seems fine. However I came across an exercise where a

4 x 4 or 3 x 4 format? I have a 3 x 4 matrix of -R|t information. Seems fine. However I came across an exercise where a

4 x 4 or 3 x 4 format? I have a 3 x 4 matrix of -R|t information. Seems fine. However I came across an exercise where a

sample v for inclusion in parametric equation I am working through the following equation in the plane-line intersectio

Lets say my camera captures several dots. On these dots I calculate a few vectors. And from these vectors I get a cross

when to normalize data Regarding raw image data in opencv at what point am I supposed to normalize the data? While calcu

when to normalize data Regarding raw image data in opencv at what point am I supposed to normalize the data? While calcu

when to normalize data Regarding raw image data in opencv at what point am I supposed to normalize the data? While calcu

Excellent! Thank you! std::cout << "by Mat" << std::endl; Mat PQ = (Mat_<float>(3, 1) << 1.

Excellent! Thank you! std::cout << "by Mat" << std::endl; Mat PQ = (Mat_<float>(3, 1) << 1.

Excellent! Thank you! std::cout << "by Mat" << std::endl; Mat PQ = (Mat_<float>(3, 1) << 1.

Excellent! Thank you! estd::cout << "by Mat" << std::endl; Mat PQ = (Mat_<float>(3, 1) << 1

Excellent! Thank you! estd::cout << "by Mat" << std::endl; Mat PQ = (Mat_<float>(3, 1) << 1

Excellent! Thank you! estd::cout << "by Mat" << std::endl; Mat PQ = (Mat_<float>(3, 1) << 1

Excellent! Thank you! estd::cout << "by Mat" << std::endl; Mat PQ = (Mat_<float>(3, 1) << 1

vector results inconsistent what am I doing? Hi, I am getting 2 different vector-cross product results, one from OpenCV