Arithmetic1

MLModule

genre	Unary
author	MeVis Medical Solutions AG
package	MeVisLab/Standard
dll	MLBasicModules
definition	mlBasicModules.def
see also	Arithmetic2, SoCalculator
keywords	absolute, negate, invert, power, add, multiply, subtract, divide, or, and, xor, image

Purpose

This module performs arithmetic operations on an image.

The output is the processed image according to the selected function and constant.

This module usually works with scalar voxel values. Only the Function modes Add, Multiply and Subtract work on any registered voxel type.

Usage

Select the arithmetic operation you want to apply to the input image. If the arithmetic operation has two operands enter a constant.

Tips

The example network demonstrates how an image can be inverted by the Arithmetic1 operator.

Windows

Default Panel

Input Fields

input0

name: input0, type: Image

Input Image

Output Fields

output0

name: output0, type: Image

Output Image

Parameter Fields

Visible Fields

Function

name: function, type: Enum, default: Add, deprecated name: Function

Defines an operation which is applied to the input image.

Values:

Title	Name	Deprecated Name	Description
Absolute	Absolute		The absolute valued input image is passed to the output.
Invert (Max-Img)	Invert	Invert (MAX-IMG)	The inverted input image is passed to the output (max+min-img).
Power (Img^Const)	Power	Power (IMG^C)	The input image to the power of Constant is passed to the output.
Add (Const+Img)	Add	Add (IMG+C)	The input image increased by Constant is passed to the output.
Multiply (Const*Img)	Multiply	Multiply (IMG*C)	The input image multiplied by Constant is passed to the output.
Subtract (Const-Img)	Subtract	Subtract (C-IMG)	Constant decreased by the input image is passed to the output.
Divide (Const/Img)	Divide	Divide (C/IMG)	Constant divided by the input image is passed to the output.
Bitwise Or (Const OR Img)	Or	OR	The input image OR Constant is passed to the output. The OR operation is performed bitwise. Note: The operation is only performed on the first 32 bit of the value.
Bitwise And (Const AND Img)	And	AND	The input image AND Constant is passed to the output. The AND operation is performed bitwise. Note: The operation is only performed on the first 32 bit of the value.
Bitwise Xor (Const XOR Img)	Xor	XOR	The input image XOR Constant is passed to the output. The XOR operation is performed bitwise. Note: The operation is only performed on the first 32 bit of the value.
Log	Log	Log (log(IMG)	The natural logarithm of the input image is passed to the output. Note: If the input value is smaller than 0, the output value is set to 0.
Exp	Exp	Exp (exp(IMG)	The exponential function of the input image is passed to the output.
Overwrite (Set to Const)	Overwrite		Overwrites all voxels with the Constant value. Supports all data types.
Subtract (Img-Const)	SubtractImgConst		Subtracts the constant from each voxel (component).
Divide (Img/Const)	DivideImgConst		Divides each voxel (component) by the constant. Note: If the constant is 0, the voxel (component)s are set to 0.

Constant

name: constant, type: Double, default: 1, deprecated name: C

Sets a constant value for the arithmetic operations with two operands.