This year, most of August was unfit for bike riding due to wildfire smoke in the air. There was a 10 day stretch where the visibility scale reached zero. Standing on the shores at Shilshole, the smoke was so thick that land wasn’t visible across the Puget Sound. I wondered if land was still visible from a digital camera, even though I couldn’t see it. There is an imaging processing technique call Retinex that is used to enhance the dynamic…
RClone is an extended feature set to rsync which provides a way to use cloud storage for file backups. To install it, refer to this link https://rclone.org/downloads/. In my example I run these commands to download and install RClone. wget https://downloads.rclone.org/v1.42/rclone-v1.42-linux-amd64.deb sudo dpkg –install rclone-v1.42-linux-amd64.deb Next is to configure RClone to use the cloud service. I ran this command to do that. Refer to this link, https://www.hwrrobotics.com/tutorials/installingRcloneUbuntu14.04 or https://www.unixmen.com/install-configure-rclone-debian-8/ rclone config 2018/08/07 04:02:03 NOTICE: Config file “/home/local/.config/rclone/rclone.conf” not found -…
FFMpeg motion detection offers a way to create videos that are smaller and shorter becuase it only captures changed scenes. This post discussed the topic, https://superuser.com/questions/984841/ffmpeg-remove-parts-without-motion. Here is the command I used based off of this conversation. ffmpeg -i “http://viewr1:viewr1@192.168.6.184/mjpeg/stream.cgi?chn=0” -vf “select=gt(scene\,0.004),setpts=N/(25*TB)” IPCam4_Motion.mp4 The one thing I noticed was the timestamp in the video is being detected as a scene change, this introduces a higher noise floor. I found that my lowest scene value to be .004. This site, http://www.bogotobogo.com/FFMpeg/ffmpeg_thumbnails_select_scene_iframe.php…