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2016-09-27 19:01:42 -0500	answered a question	cmake error, poco was not found, Raspberry Pi, ROS Indigo `sudo apt-get install libpoco-dev`
2016-03-20 20:52:30 -0500	commented answer	image_view stereo_view do not show image or disparity Done: https://github.com/ros-perception/ima...
2016-03-20 20:02:16 -0500	answered a question	image_view stereo_view do not show image or disparity I'm running the same setup. The problem is inside imageCB() method in stereo_view.cpp. image_mutex_.unlock() was being called before imshow() for the left, right and disparity images. `image_mutex_.unlock(); if (!last_left_image_.empty()) cv::imshow("left", last_left_image_); if (!last_right_image_.empty()) cv::imshow("right", last_right_image_); cv::imshow("disparity", disparity_color_);` the location of `image_mutex_.unlock();` is causing the window threads to lock up. change the above to this: `if (!last_left_image_.empty())){ cv::imshow("left", last_left_image_); cv::waitKey(1); } if (!last_right_image_.empty()){ cv::imshow("right", last_right_image_); cv::waitKey(1); } cv::imshow("disparity", disparity_color_); cv::waitKey(1); image_mutex_.unlock();` moving the unlock() command below the Mat checks and adding `cv::waitKey(1)` for each cv::imshow() solved it for me. You'll have to download the source code from https://github.com/ros-perception/image_pipeline.git and compile it yourself. look in image_view/src/stereo_view.cpp for the image call back. Hope this helps