Step 1 – Identify where a fade is required
Typically, I use the image fading technique in two ways. First, you can use it to emphasize a key part of an image and still leave the audience with a sense for the bigger picture. Second, you can also use it to hide or de-emphasize less important parts of an image. In the example below, I wanted to soften or remove the edge of the image so that it didn’t stand out so much on the slide. I’ve used this approach to allow bullet points to overflow on to an image and not have the text become lost in the image...
Step 2 – Choose an appropriate shape and size
Normally, I use rectangles to fade out parts of an image (objects need to be positioned on top of images). However, you can use other shapes to create more interesting fade effects. Sizing also becomes an issue with the fade effect as a wider shape makes the fade more gradual while a narrower shape makes the fade more sharp or abrupt.