| Exponential | Returns an image where the pixel values are the normalised exponential of the input pixel values |
| Inverse | Returns an image where the pixel values are 255 minus the input pixel values |
| Logarithm | Returns an image where the pixel values are the normalised logarithm of the input pixel values |
| Power | Returns an image where the pixel values are the input pixel values raised to the specified power and normalised |
| Square | Returns an image where the pixel values are the normalised square of the input pixel values |
| DualThresh | Returns an image where the pixel values are white if the input pixel values lie between the upper and lower threshold, and black otherwise |
| EntropicThresh | Returns the optimum threshold value to separate the background from the foreground |
| GSCapThresh | Returns an image where the pixel values are the input pixel values if they are larger than the specified value, otherwise they are black |
| MidThresh | Returns an image where the pixel values are white if the input pixel values are larger than or equal to 127, otherwise they are black |
| Threshold | Returns an image where the pixel values are white if the input pixel values are larger than or equal to the user specified threshold, otherwise they are black |
| 3x3Thresh | Returns an image where the pixel values are white if the input pixel values are larger than or equal to the user specified threshold plus the mean of the 3x3 region in which it is the centre pixel, otherwise they are black |
| 5x5Thresh | Returns an image where the pixel values are white if the input pixel values are larger than or equal to the user specified threshold plus the mean of the 5x5 region in which it is the centre pixel, otherwise they are black |
| TripleThresh | Returns an image where the pixel values are black if the input values are below the lower threshold, are grey if the input pixel values lie between the upper and lower threshold, and white if they are larger than the upper threshold |
| GreyScaler | Returns an image where the pixel values are the mean of all three colour channels |