in fact masking wasn't working, HistogramRegistration takes mask as numpy not nibabel
in fact masking wasn't working, HistogramRegistration takes mask as numpy not nibabel

sgiavasis/nipype,glatard/nipype,glatard/nipype,FCP-INDI/nipype,blakedewey/nipype,wanderine/nipype,rameshvs/nipype,blakedewey/nipype,sgiavasis/nipype,wanderine/nipype,rameshvs/nipype,pearsonlab/nipype,fprados/nipype,arokem/nipype,grlee77/nipype,gerddie/nipype,rameshvs/nipype,carolFrohlich/nipype,grlee77/nipype,wanderine/nipype,gerddie/nipype,fprados/nipype,mick-d/nipype,glatard/nipype,pearsonlab/nipype,grlee77/nipype,FCP-INDI/nipype,carlohamalainen/nipype,mick-d/nipype,fprados/nipype,mick-d/nipype,carolFrohlich/nipype,blakedewey/nipype,JohnGriffiths/nipype,wanderine/nipype,FredLoney/nipype,dgellis90/nipype,sgiavasis/nipype,carolFrohlich/nipype,dgellis90/nipype,iglpdc/nipype,FCP-INDI/nipype,dgellis90/nipype,iglpdc/nipype,Leoniela/nipype,mick-d/nipype,mick-d/nipype_source,blakedewey/nipype,dmordom/nipype,arokem/nipype,mick-d/nipype_source,FredLoney/nipype,iglpdc/nipype,carlohamalainen/nipype,arokem/nipype,JohnGriffiths/nipype,Leoniela/nipype,FredLoney/nipype,carlohamalainen/nipype,pearsonlab/nipype,carolFrohlich/nipype,arokem/nipype,gerddie/nipype,dmordom/nipype,grlee77/nipype,sgiavasis/nipype,iglpdc/nipype,FCP-INDI/nipype,mick-d/nipype_source,glatard/nipype,dmordom/nipype,Leoniela/nipype,JohnGriffiths/nipype,JohnGriffiths/nipype,rameshvs/nipype,dgellis90/nipype,pearsonlab/nipype,gerddie/nipype