Arithmetic

These commands operate on the image on a pixel-by-pixel basis. The commands support both real and complex-valued images. The available arithmetic commards are:

Invert Negate pixel values.

Log Take natural logrithm of pixel values.

Exp Take natural exponent of pixel values.

Square Take square of pixel values.

Square root Take square root of pixel values.

Invert	Negate pixel values.
Log	Take natural logrithm of pixel values.
Exp	Take natural exponent of pixel values.
Square	Take square of pixel values.
Square root	Take square root of pixel values.