Viewing the Photo Effects
To see the photo effects from black and white to color, press the F5 key on the keyboard to start the slide show.
Animated Photo Sample
The above animated GIF shows the effect you can create in PowerPoint using custom animations to make a photo appear to change from black and white to color as you watch.
Note - The actual animation in PowerPoint will be much smoother than this short video clip portrays.
- Related PowerPoint Tutorial
Black and White to Color Photos Using PowerPoint Transitions