Creates a box of a user-defined size around each pixel, sorts all of the pixels in that box into a list in order of intensity, selects a pixel at a user-defined position in that list and replaces the initial pixel with that color. Useful for shrinking or growing images or masks, stripping out areas of extreme high or low intensity, and creating artistic effects. The Rank filter includes all of the functionality of the Median and Min Max Filters, and additionally allows other levels to be emphasized.
Requires an Input (Any).
Produces an Output (Any).
Width, Height |
Sets the size of the box. Set a pixel values using the slider. |
Tolerance |
Protects areas where the change in intensity is small. If the minimum or maximum value determined within the box falls within the set Tolerance from the initial pixel value in any component, the pixel will not be replaced. Set a value between 0 and 1 using the slider. |
Level |
Sets the position or rank in the list of sorted pixels at which the pixel value will be selected. Set a value between 0 and 1 using the slider. A value of 0 will give the same effect as a minimum filter, 0.5 produces a median filter and 1 produces a maximum filter. |
MinMax |
Sets the type of filter. Select Minimum to grow dark areas into light areas, or Maximum to grow light areas into dark areas. |
Search Mode |
Sets the criteria on which the pixels are sorted. Select Red, Green, Blue, Alpha or Luminance. |
Controls this operator’s Mask Options.
Controls this operator’s Output Options.
SOFTIMAGE|XSI v.6.01