|  | Image segmentation
 

 For natural (photographic) images, conversion to a reduced color or a black-and-white 
palette by brightness threshold usually does not produce the desired vectorization 
results. In these cases, a better result can be achieved using the image segmentation before
vectorizing.
 The Segmentation method has two customizable settings: 
  Smoothing factor - manages smoothing of the original image; the greater this value is, the sharpness of the edges and contrast areas will be reduced on the image.Color tolerance - color distance threshold in color (RGB) space. If neigbour segments has colors
  below threshold it will be merged. See AlsoChanging palette Edge detector |