qimgv - Fast and easy to use Qt5 image viewer.

pqiv - GTK 3 based command-line image viewer with a minimal UI supporting images in compressed archives, rewrite of qiv.

PhotoQt - Fast and highly configurable image viewer with a simple and nice interface.nsxiv - Simple image viewer based on imlib2 that works well with tiling window managers.

It is feature-rich but starts fast and can be configured to show additional widgets or only the image. Mirage - PyGTK image viewer featuring support for crop and resize, custom actions and a thumbnail panel.meh - meh is a small, simple, super fast image viewer using raw XLib.Loupe - Simple image viewer for GNOME desktop.KuickShow - Fast and convenient image viewer for KDE.Koko - Image viewer designed for desktop and touch devices.imv - Lightweight image viewer with support for Wayland and animated GIFs which uses FreeImage.image-roll - Simple and fast GTK image viewer with basic image manipulation tools.Install the optional dependencies as needed. ida - X11 application (Motif based) for viewing images.Gwenview - Fast and easy to use image viewer for the KDE desktop with optional dependencies for additional format support.GPicView - Simple and fast image viewer for X, which is part of the LXDE desktop.feh - Fast, lightweight image viewer that uses imlib2.EyeSight - Image viewer for the Hawaii desktop environment.Eye of MATE - Simple graphics viewer for the MATE desktop.Eye of GNOME - Image viewer for GNOME desktop.Ephoto - A light image viewer based on EFL.Deepin Image Viewer - Image viewer for Deepin desktop.CoreImage - Simple lightweight easy to use image viewer based on Qt.Features include Vim-like controls, rotation and zoom, zoom-to-fit, and fast multi-threaded rendering. jfbview - Framebuffer PDF and image viewer based on Imlib2.fim - Highly customizable and scriptable framebuffer image viewer based on fbi.fbv - Very simple graphic file viewer for the framebuffer console.fbi - Image viewer for the linux framebuffer console.See also Wikipedia:Comparison of image viewers. Internet – Multimedia – Utilities – Documents – Security – Science – Other Multimedia Codecs

For ipod instal clever FFmpeg-GUI 3.1.2