ENH: Add option for computing differences with another image.
ENH: Add option for computing differences with another image.

jmerkow/ITK,cpatrick/ITK-RemoteIO,CapeDrew/DCMTK-ITK,richardbeare/ITK,wkjeong/ITK,Kitware/ITK,LucasGandel/ITK,GEHC-Surgery/ITK,heimdali/ITK,daviddoria/itkHoughTransform,rhgong/itk-with-dom,itkvideo/ITK,wkjeong/ITK,daviddoria/itkHoughTransform,fedral/ITK,daviddoria/itkHoughTransform,jcfr/ITK,zachary-williamson/ITK,vfonov/ITK,paulnovo/ITK,msmolens/ITK,GEHC-Surgery/ITK,LucHermitte/ITK,daviddoria/itkHoughTransform,CapeDrew/DITK,vfonov/ITK,PlutoniumHeart/ITK,thewtex/ITK,fedral/ITK,jmerkow/ITK,ajjl/ITK,fuentesdt/InsightToolkit-dev,eile/ITK,LucasGandel/ITK,thewtex/ITK,hinerm/ITK,malaterre/ITK,wkjeong/ITK,daviddoria/itkHoughTransform,CapeDrew/DITK,eile/ITK,itkvideo/ITK,heimdali/ITK,BRAINSia/ITK,LucHermitte/ITK,ajjl/ITK,stnava/ITK,paulnovo/ITK,spinicist/ITK,spinicist/ITK,LucHermitte/ITK,heimdali/ITK,BRAINSia/ITK,BlueBrain/ITK,BRAINSia/ITK,hjmjohnson/ITK,zachary-williamson/ITK,CapeDrew/DITK,InsightSoftwareConsortium/ITK,fbudin69500/ITK,fuentesdt/InsightToolkit-dev,zachary-williamson/ITK,biotrump/ITK,LucHermitte/ITK,CapeDrew/DITK,eile/ITK,fedral/ITK,heimdali/ITK,thewtex/ITK,paulnovo/ITK,fedral/ITK,biotrump/ITK,PlutoniumHeart/ITK,blowekamp/ITK,heimdali/ITK,hendradarwin/ITK,stnava/ITK,zachary-williamson/ITK,itkvideo/ITK,msmolens/ITK,fuentesdt/InsightToolkit-dev,stnava/ITK,hjmjohnson/ITK,biotrump/ITK,InsightSoftwareConsortium/ITK,BlueBrain/ITK,fedral/ITK,vfonov/ITK,PlutoniumHeart/ITK,jmerkow/ITK,wkjeong/ITK,itkvideo/ITK,Kitware/ITK,Kitware/ITK,LucasGandel/ITK,LucasGandel/ITK,biotrump/ITK,itkvideo/ITK,malaterre/ITK,BRAINSia/ITK,CapeDrew/DITK,eile/ITK,hinerm/ITK,CapeDrew/DITK,malaterre/ITK,ajjl/ITK,fbudin69500/ITK,paulnovo/ITK,daviddoria/itkHoughTransform,stnava/ITK,fedral/ITK,msmolens/ITK,blowekamp/ITK,PlutoniumHeart/ITK,cpatrick/ITK-RemoteIO,jcfr/ITK,cpatrick/ITK-RemoteIO,wkjeong/ITK,cpatrick/ITK-RemoteIO,msmolens/ITK,fuentesdt/InsightToolkit-dev,thewtex/ITK,malaterre/ITK,fbudin69500/ITK,eile/ITK,blowekamp/ITK,jmerkow/ITK,heimdali/ITK,GEHC-Surgery/ITK,hinerm/ITK,eile/ITK,eile/ITK,zachary-williamson/ITK,BlueBrain/ITK,paulnovo/ITK,thewtex/ITK,zachary-williamson/ITK,richardbeare/ITK,hjmjohnson/ITK,atsnyder/ITK,CapeDrew/DCMTK-ITK,blowekamp/ITK,daviddoria/itkHoughTransform,wkjeong/ITK,wkjeong/ITK,vfonov/ITK,ajjl/ITK,richardbeare/ITK,CapeDrew/DCMTK-ITK,fbudin69500/ITK,biotrump/ITK,atsnyder/ITK,LucHermitte/ITK,malaterre/ITK,BRAINSia/ITK,malaterre/ITK,jcfr/ITK,malaterre/ITK,rhgong/itk-with-dom,InsightSoftwareConsortium/ITK,CapeDrew/DITK,fuentesdt/InsightToolkit-dev,Kitware/ITK,stnava/ITK,spinicist/ITK,daviddoria/itkHoughTransform,jcfr/ITK,PlutoniumHeart/ITK,CapeDrew/DCMTK-ITK,spinicist/ITK,richardbeare/ITK,richardbeare/ITK,rhgong/itk-with-dom,msmolens/ITK,hendradarwin/ITK,jcfr/ITK,hinerm/ITK,richardbeare/ITK,LucasGandel/ITK,ajjl/ITK,stnava/ITK,itkvideo/ITK,fbudin69500/ITK,hendradarwin/ITK,biotrump/ITK,CapeDrew/DCMTK-ITK,rhgong/itk-with-dom,hendradarwin/ITK,msmolens/ITK,GEHC-Surgery/ITK,ajjl/ITK,InsightSoftwareConsortium/ITK,CapeDrew/DCMTK-ITK,hinerm/ITK,hjmjohnson/ITK,heimdali/ITK,GEHC-Surgery/ITK,atsnyder/ITK,LucasGandel/ITK,hinerm/ITK,Kitware/ITK,fuentesdt/InsightToolkit-dev,eile/ITK,PlutoniumHeart/ITK,blowekamp/ITK,ajjl/ITK,CapeDrew/DCMTK-ITK,atsnyder/ITK,jcfr/ITK,hendradarwin/ITK,BlueBrain/ITK,zachary-williamson/ITK,richardbeare/ITK,jmerkow/ITK,blowekamp/ITK,vfonov/ITK,spinicist/ITK,heimdali/ITK,fbudin69500/ITK,jcfr/ITK,cpatrick/ITK-RemoteIO,cpatrick/ITK-RemoteIO,BRAINSia/ITK,BlueBrain/ITK,hinerm/ITK,msmolens/ITK,msmolens/ITK,InsightSoftwareConsortium/ITK,BlueBrain/ITK,GEHC-Surgery/ITK,LucHermitte/ITK,stnava/ITK,paulnovo/ITK,InsightSoftwareConsortium/ITK,spinicist/ITK,malaterre/ITK,spinicist/ITK,BlueBrain/ITK,CapeDrew/DITK,rhgong/itk-with-dom,fbudin69500/ITK,hendradarwin/ITK,paulnovo/ITK,BlueBrain/ITK,fedral/ITK,ajjl/ITK,spinicist/ITK,CapeDrew/DCMTK-ITK,rhgong/itk-with-dom,rhgong/itk-with-dom,hjmjohnson/ITK,vfonov/ITK,vfonov/ITK,thewtex/ITK,hendradarwin/ITK,wkjeong/ITK,blowekamp/ITK,InsightSoftwareConsortium/ITK,fuentesdt/InsightToolkit-dev,LucHermitte/ITK,fedral/ITK,biotrump/ITK,itkvideo/ITK,vfonov/ITK,LucasGandel/ITK,atsnyder/ITK,zachary-williamson/ITK,hjmjohnson/ITK,LucHermitte/ITK,hjmjohnson/ITK,CapeDrew/DCMTK-ITK,itkvideo/ITK,fuentesdt/InsightToolkit-dev,vfonov/ITK,biotrump/ITK,Kitware/ITK,jmerkow/ITK,atsnyder/ITK,malaterre/ITK,cpatrick/ITK-RemoteIO,atsnyder/ITK,PlutoniumHeart/ITK,rhgong/itk-with-dom,atsnyder/ITK,blowekamp/ITK,atsnyder/ITK,jcfr/ITK,hinerm/ITK,jmerkow/ITK,paulnovo/ITK,stnava/ITK,hendradarwin/ITK,cpatrick/ITK-RemoteIO,itkvideo/ITK,PlutoniumHeart/ITK,Kitware/ITK,fuentesdt/InsightToolkit-dev,BRAINSia/ITK,CapeDrew/DITK,hinerm/ITK,fbudin69500/ITK,LucasGandel/ITK,GEHC-Surgery/ITK,stnava/ITK,spinicist/ITK,GEHC-Surgery/ITK,daviddoria/itkHoughTransform,eile/ITK,jmerkow/ITK,zachary-williamson/ITK,thewtex/ITK