====== ArithmeticsWithConstants ======
Here, fundamental arithmetic operations can be applied on a pixel-level to a stack of images.

===== Usage =====
An input image, stack of images/3Ds, or an individual 3D will be arithmetically modified according to the selected constant and operator. Since only one input and one output are available, no further information regarding I/O are provided.

===== Processors =====

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^ Operator            ^ Description     ^
| Add constant        | Adds a constant value to every pixel value |
| Divide constant     | Divides every pixel value of every image by the specified value |
| Invert              | Multiplies each pixel value of every image by -1 |
| Multiply constant   | Multiplies every pixel value of each image with the specified value |
| Subtract constant   | Subtracts the specified value from each pixel value for every image |

===== Parameters and I/O ===== 
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^ Parameters                 ^ Description     ^
| Value                      | value to be added/divided by/multiplied/subtracted |