The effect is commonly called a fade through white. It’s a transition where the image briefly blows out to white, then the next image appears and settles back to normal brightness.

You don’t necessarily need a heavy editor for this. Any decent video-editing or slideshow software can do it if it includes either:

• a built-in fade through white transition, or
• keyframe animation for brightness/exposure levels.

If your software doesn’t list that transition by name, you can usually recreate it by keyframing brightness so the first image ramps up to white, cuts or dissolves to the next image, then ramps back down to normal.