Working with Linux ??? Quick Hacks for the Command Line

Shrinking spells and other ImageMagick

In this chapter, we will learn how to process images from the command line. We will start with the most complex and widely used image command line interface processing toolkit called ImageMagick. To install it, run the following:

sudo apt install imagemagick

As you can see, we have already installed it.

Now, let's find some images to process. Let's use the default Ubuntu backgrounds that can be found in /usr/share/backgrounds. Let's copy the backgrounds to another location so that we don't alter our default ones.

We'll take a look at the first image in our list: we can see from ls that it is a JPEG image of 1.6 ...