# Pixel Set

Use an IPOneImage tool and a Pixel Set operator to selectively copy some input image pixels to an output image while setting other output image pixels to a uniform value. Applications that use a Pixel Set operator can use an input region or an image mask to define which pixels you want to copy and which you want to set between the input image and the output image.

The following figure shows an input image and the output image produced after using a Pixel Set operator and an image mask to set all background pixels to a value of 255:

See the following topics for more information: