A Command-line Image Tool for Ubuntu Linux
Basic setup steps for CLI image tool
ImageMagick
ImageMagick (https://imagemagick.org/) is a powerful, open-source command-line software suite on Ubuntu for creating, editing, converting, and manipulating images. It supports over 200 formats (PNG, JPEG, PDF, TIFF) and is used for resizing, flipping, blurring, and drawing on images. It serves as a "Swiss army knife" for image processing.
apt install imagemagick