BUG: Assert unchanged pixels only for non-PALETTE_COLOR images
BUG: Assert unchanged pixels only for non-PALETTE_COLOR images

Change-Id: I1781cf8cdcaf26a54311bf1bd7e2338230465e70

GEHC-Surgery/ITK,spinicist/ITK,richardbeare/ITK,malaterre/ITK,BRAINSia/ITK,hendradarwin/ITK,jcfr/ITK,stnava/ITK,eile/ITK,hjmjohnson/ITK,stnava/ITK,richardbeare/ITK,GEHC-Surgery/ITK,heimdali/ITK,fedral/ITK,jcfr/ITK,BlueBrain/ITK,thewtex/ITK,BlueBrain/ITK,richardbeare/ITK,malaterre/ITK,blowekamp/ITK,zachary-williamson/ITK,hjmjohnson/ITK,vfonov/ITK,thewtex/ITK,fbudin69500/ITK,biotrump/ITK,atsnyder/ITK,LucasGandel/ITK,vfonov/ITK,hendradarwin/ITK,fbudin69500/ITK,Kitware/ITK,blowekamp/ITK,heimdali/ITK,InsightSoftwareConsortium/ITK,msmolens/ITK,LucHermitte/ITK,ajjl/ITK,hjmjohnson/ITK,BlueBrain/ITK,stnava/ITK,richardbeare/ITK,ajjl/ITK,malaterre/ITK,BlueBrain/ITK,vfonov/ITK,PlutoniumHeart/ITK,LucasGandel/ITK,jcfr/ITK,vfonov/ITK,biotrump/ITK,stnava/ITK,GEHC-Surgery/ITK,fbudin69500/ITK,stnava/ITK,richardbeare/ITK,InsightSoftwareConsortium/ITK,stnava/ITK,hendradarwin/ITK,InsightSoftwareConsortium/ITK,atsnyder/ITK,zachary-williamson/ITK,LucasGandel/ITK,biotrump/ITK,stnava/ITK,ajjl/ITK,spinicist/ITK,jcfr/ITK,hjmjohnson/ITK,LucHermitte/ITK,eile/ITK,ajjl/ITK,msmolens/ITK,jmerkow/ITK,GEHC-Surgery/ITK,blowekamp/ITK,ajjl/ITK,LucasGandel/ITK,jcfr/ITK,PlutoniumHeart/ITK,BRAINSia/ITK,heimdali/ITK,zachary-williamson/ITK,BlueBrain/ITK,eile/ITK,eile/ITK,GEHC-Surgery/ITK,fedral/ITK,malaterre/ITK,LucHermitte/ITK,fedral/ITK,richardbeare/ITK,hendradarwin/ITK,zachary-williamson/ITK,eile/ITK,atsnyder/ITK,BRAINSia/ITK,zachary-williamson/ITK,fedral/ITK,atsnyder/ITK,ajjl/ITK,biotrump/ITK,spinicist/ITK,hendradarwin/ITK,vfonov/ITK,atsnyder/ITK,heimdali/ITK,jmerkow/ITK,LucasGandel/ITK,msmolens/ITK,blowekamp/ITK,PlutoniumHeart/ITK,vfonov/ITK,jmerkow/ITK,PlutoniumHeart/ITK,Kitware/ITK,jcfr/ITK,biotrump/ITK,msmolens/ITK,malaterre/ITK,stnava/ITK,PlutoniumHeart/ITK,ajjl/ITK,fbudin69500/ITK,thewtex/ITK,hjmjohnson/ITK,vfonov/ITK,spinicist/ITK,LucasGandel/ITK,blowekamp/ITK,LucasGandel/ITK,malaterre/ITK,jmerkow/ITK,PlutoniumHeart/ITK,heimdali/ITK,jmerkow/ITK,fbudin69500/ITK,Kitware/ITK,GEHC-Surgery/ITK,malaterre/ITK,eile/ITK,eile/ITK,fedral/ITK,vfonov/ITK,thewtex/ITK,LucasGandel/ITK,zachary-williamson/ITK,atsnyder/ITK,stnava/ITK,spinicist/ITK,InsightSoftwareConsortium/ITK,heimdali/ITK,richardbeare/ITK,thewtex/ITK,GEHC-Surgery/ITK,LucHermitte/ITK,LucHermitte/ITK,BlueBrain/ITK,thewtex/ITK,spinicist/ITK,biotrump/ITK,msmolens/ITK,jcfr/ITK,Kitware/ITK,spinicist/ITK,heimdali/ITK,atsnyder/ITK,BlueBrain/ITK,BlueBrain/ITK,LucHermitte/ITK,vfonov/ITK,PlutoniumHeart/ITK,eile/ITK,fbudin69500/ITK,blowekamp/ITK,fedral/ITK,hjmjohnson/ITK,jmerkow/ITK,spinicist/ITK,msmolens/ITK,PlutoniumHeart/ITK,fedral/ITK,eile/ITK,hendradarwin/ITK,InsightSoftwareConsortium/ITK,InsightSoftwareConsortium/ITK,blowekamp/ITK,zachary-williamson/ITK,atsnyder/ITK,Kitware/ITK,biotrump/ITK,zachary-williamson/ITK,hendradarwin/ITK,hendradarwin/ITK,ajjl/ITK,BRAINSia/ITK,atsnyder/ITK,GEHC-Surgery/ITK,BRAINSia/ITK,spinicist/ITK,blowekamp/ITK,biotrump/ITK,fbudin69500/ITK,jmerkow/ITK,InsightSoftwareConsortium/ITK,malaterre/ITK,Kitware/ITK,LucHermitte/ITK,fbudin69500/ITK,BRAINSia/ITK,jmerkow/ITK,Kitware/ITK,LucHermitte/ITK,malaterre/ITK,hjmjohnson/ITK,msmolens/ITK,BRAINSia/ITK,thewtex/ITK,fedral/ITK,msmolens/ITK,heimdali/ITK,jcfr/ITK,zachary-williamson/ITK