Qv is a free and open source 2D data visualizer application for Linux and Windows. You can use this as viewer for images, sensor data, simulations, renderings, videos and more. It is released under MIT license. Not only viewer, you can also use this tool to analysis the file statistics, histogram, range selection, dynamic range reduction, value inspection, and color maps.
How to Install qv Viewer on Ubuntu Linux
Qv is available as a flatpak package file from the flathub store. First you need to install the latest version of flatpak and flathub on your system and restart it after the installation.
In the terminal app (ctrl+alt+t) run below qv flatpak installation command.
flatpak install flathub de.marlam.qv
After the installation you can open qv viewer using this flatpak command. You can also open it using the application menu.
flatpak run de.marlam.qv
And uninstall qv viewer using
sudo flatpak uninstall de.marlam.qv