Here, fundamental arithmetic operations can be applied, which will be using the full stack of input images.

An input stack of images/3Ds will be subjected to a arithmetic operation, according to the selected operator. Since only one input and one output are available, no further information regarding I/O are provided.

Operator Description
Sum images Sums up all input images into one image.
Average images Averages all input images into one image.
Calculate variance Calculates a variance image, where the value of a pixel represents the pixel value variance of all images at the corresponding pixel position.