Hi AFNI experts,
We run our own bias field correction on the anatomical scans. I use these corrected scans for the afni_proc script and run into the following error.
3dSeg -anat anat_final.001+orig -mask AUTO -classes CSF ; GM ; WM
++ Notice SUMA_estimate_bias_field_Wells (SUMA_SegFunc.c:4713 @16:14:17):
Debug or NAN for voxel 4145 [92 21 0]
Cls CSF, M nan, S nan, Ai 100.689583 (fAset=0.014080 * 7151)
Gik 0.999664, Ri nan, sdf nan
-- Error SUMA_estimate_bias_field_Wells (SUMA_SegFunc.c:4718):
Have NAN, will return
-- Error SUMA_SegEngine (SUMA_3dSeg.c:506):
Failed to estimate bias
-- Error 3dSeg (SUMA_3dSeg.c:929):
Failed in SUMA_SegEngine
Is there an option to switch off bias field correction in the mask block of the afni_proc script?
Best wishes
Michael M