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** (Great title:11352): WARNING **: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
More rarely, a different message, as for example the following one, is shown:** (Great title:9472): WARNING **: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.TimedOut: Failed to activate service 'org.a11y.Bus': timed out
After the delay, the function displays the image as it is supposed to.This problem occurs both from within Python and C++. To reproduce it, run one of the following programs (supposing the file picture.jpg is available):
########## cvtest.py ########## # Run using the following command line (works also with python3): # python cvtest.py from __future__ import print_function, division import time import cv2 img = cv2.imread('picture.jpg') print('Image shape:', img.shape) t1 = time.time() cv2.imshow('Great title', img) t2 = time.time() print('%.3f s' % (t2 - t1)) cv2.waitKey() ########## cvtest.cxx ########## // Compile and run using the following command line (tested with GCC 5.4.0): // g++ -std=c++11 -Wall -Wextra -O3 -march=native -s cvtest.cxx -lopencv_imgcodecs -lopencv_highgui -lopencv_core -o cvtest && ./cvtest #include <iostream> #include <chrono> #include <opencv2/opencv.hpp> int main() { auto img = cv::imread("picture.jpg"); std::cout << "Image size: " << img.size() << '\n'; auto t1 = std::chrono::high_resolution_clock::now();; cv::imshow("Great title", img); auto t2 = std::chrono::high_resolution_clock::now();; std::cout << std::chrono::duration<double>(t2 - t1).count() << " s\n"; cv::waitKey(); return 0; } ################################Unfortunately I seem to be unable to send this mail to the list while attaching my cygcheck output - I tried uncompressed (400 kB) and compressed (38 kB).
-- Falk
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