There's a lot to learn about image files on the command line, from verifying file format to finding out where and when photos were taken and maybe even getting an unusual view of what they look like.

In my last article, I had some fun looking at the children's game of rock, paper, scissors, writing a simple simulator and finding out that some strategies are better than others. Yes, I used ...

gd is an open-source library that allows users to create and manipulate images easily. It lets you open images in formats such as JPEG, PNG, XPM and a few more. gd works something like this: it opens ...