Changes

* A TUI on an 80x25 character terminal displays about 2 kilobytes of data (0.002 megabytes) at one time

* A GUI immediately shows the effect of changes and allows the adjustments to be easily fine-tuned, producing exact results for a small number of photos. However, it may take many steps to perform the edits, so editing hundreds of photographs will take a very long time.

* A CLI is well-suited to automation. Edits could be applied to hundreds of pictures in a few seconds, if the edits can be adequately described on the command-line.