Effects > Distort > Inside Out
Inside Out
The Inside Out filter allows you to turn the image inside out. The pixels in the center of the image are replaced by the edge pixels and vice versa.
1. Choose Effects > Distort > Inside Out
2. Use the following options:
Use this option to convert the image into a square image.
This option allows you to make the background color transparent.
  Background Color
This option allows you to change the background color.
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