Or copy your originals to a new location before you mogrify them. If you want to keep the original image, use the convert command (also part of ImageMagick) to write to a different image file.

To install, use the sudo command with dnf: sudo dnf install ImageMagick parallelīefore you start running the commands below, be aware the mogrify command overwrites the original image file.

These packages are available in the Fedora repositories. The mogrify command is part of this suite. You can use it to resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more. It can deal with lots of popular formats, such as JPEG, PNG, GIF, and more. The ImageMagick suite of tools offers many ways to change or manipulate images. If you write loops in the shell, you’ll find parallel can often replace most of the loops and finish the work faster, by running several jobs in parallel. It’s written to have the same options as xargs. If you use xargs or tee, you’ll find parallel easy to use. The GNU Parallel program can be used to execute jobs faster. How can you do this without reinventing the wheel? The answer is simple: use GNU Parallel and the ImageMagick utility suite. With that in mind, you want to modify your task to work in parallel. Everything is going fine, until you realize this process will take more time than expected.Īfter rethinking the process, you realize this task is taking so long because the serial method processes one image at a time. You might write a simple script or batch process to handle the conversion automatically with ImageMagick. Imagine you need to make changes to thousands or millions of images.

Linux imagemagick