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| 2017-06-15 09:42:35 -0600 | asked a question | ImageWatch and inheritance Hi, I'd like to be able to have ImageWatch show me some images that are instances of a class I implemented that directly derives from cv::Mat. Is there a way to do that? Thanks, Thomas |
| 2015-10-21 11:14:21 -0600 | commented question | Issues with fisheye camera undistortion I updated to version 3.0, and still have the same behavior. |
| 2015-10-21 05:42:34 -0600 | asked a question | Issues with fisheye camera undistortion Hi, I'm trying to use the fisheye functions to produce an undistorted image from a fisheye (ftheta lens) camera. When I do: fisheye::calibrate fisheye::estimateNewCameraMatrixForUndistortRectify fisheye::initUndistortRectifyMap cv::remap cv::imwrite All I get is a black image. It seems that the maps I get in initUndistortRectifyMap are wrong - even when I don't actually run fisheye::calibrate and I set all the distortion coefficients to zero. When I use a rectilinear model, i.e., when I do cv::calibrateCamera cv::initUndistortRectifyMap cv::remap cv::imwrite I get a correct image. Of course the correction is not ideal - as you can expect when applying this to a fisheye camera. Are there some known issues in function initUndistortRectifyMap? I'm using version 2.4.10. Are there some changes/fixes in version 3.0? Thanks, Thom |