``4D_Morphology'' - 4D mathematical morphology functions

VFX name:

i4D_Morphology

IMPROMPTU Equivalent:

4D_Morphology

purpose:

Perform 4D mathematical morphology functions on 4D volume sequences stored in ANALYZE format. Can use masks of various connectivity.

input:

An 8-bit 4D volume sequence, read from disk.

output:

An 8-bit 4D volume sequence, written to disk.

parameters:

Default menu parameters are

morph_op = dilation
connectivity = 8-conn(x-y-z-t)
target_img = 4D_image_in
image_out = 4D_image_out

``morph_op'' can be set to ``dilation,'' ``erosion,'' ``open,'' ``close,'' ``close-open,'' or ``open-close.'' ``connectivity'' can be set to ``4-conn(x-y),'' ``8-conn(x-y),'' ``6-conn(x-y-z),'' ``26-conn(x-y-z),'' ``26-conn(x-y-t),'' ``8-conn(x-y-z-t),'' or ``80-conn(x-y-z-t).'' The filenames of the 4D input and output images should be entered in the appropriate slots.

comments:

1.

Close-open filter gives good noise reduction and artifact removal.

2.

26-conn(x-y-t) is good connectivity for low z-resolution images.