Details and Options

• An extended minimum is a connected set of pixels surrounded by pixels that all have a greater value than the pixels in the set.
• FillingTransform[image] fills all extended minima by lifting their values to the lowest value found among the surrounding pixels.
• The marker can be given as a matrix or an image of the same dimensions as image.
• FillingTransform works with arbitrary 2D and 3D images.
• The following options can be given:
• CornerNeighborsTruewhether to include corner neighbors Padding0padding method to use
• For grayscale images, FillingTransform[image,h,Padding->1] effectively computes the h-minima transform.

Examples

Basic Examples  (2)

Fill holes in a binary image:

Fill a hole in a 3D image:

Scope  (3)

Fill all image holes:

Use a marker to specify the holes to be filled:

Compute the h-minima transform of a grayscale image by filling shallow, dark regions:

Applications  (4)

Fill the holes of objects in an image:

Find the innermost components in a binary image:

Use the dilated innermost components to fill the innermost holes:

Use hole-filling as a preprocessing step for image segmentation:

Remove background features from an astronomical image:

Neat Examples  (1)

Create an artistic effect by extracting areas that have local minima: