Combine Images Into One
Install Requirements
ImageMagick must be be installed first.
On Ubuntu or Debian based distros:
bash
$sudo apt-get update
$sudo apt-get install imagemagick
On Fedora or CentOS:
bash
$sudo dnf install ImageMagick
Combine Images Side by Side
bash
$convert +append image1.jpg image2.jpg output.jpg
Combine Images Stacked Vertically
bash
$convert -append image1.jpg image2.jpg output.jpg