You can add image transitions in WordPress by following these steps:
1. Install and activate a plugin that supports image transitions, such as Soliloquy or Smart Slider 3.
1. Create a new slider or image gallery using the plugin.
1. Choose the transition effect you want, such as fade, slide, zoom or flip.
1. Customize the duration and speed of the transition effect to your liking.
1. Add the slider or gallery shortcode to your WordPress page or post.
1. Preview and publish your page or post to see the image transitions in action.
Note: Some WordPress themes may also offer built-in image transition effects that you can activate in your theme settings.