size_to_satn(size, im=None, bins=None)[source]

Converts an image of invasion size values into saturations

  • size (ND-image) – The image containing invasion size values in each voxel.

  • im (ND-image, optional) – A binary image of the porous media, with True indicating the void space and False indicating the solid phase. If not given then it is assumed that the solid is identified as size == 0.

  • bins (array_like or int (optional)) – The bins to use when converting sizes to saturation. The default is to create 1 bin for each unique value in size. If an int is supplied it is interpreted as the number of bins between 0 and the maximum value in size. If an array is supplied it is used as the bins directly.


satn – An ND-image the same size as seq but with sequence values replaced by the fraction of void space invaded at or below the sequence number. Solid voxels and uninvaded voxels are represented by 0 and -1, respectively.

Return type