Revert "Cleanup Filter.process_image a bit"
Revert "Cleanup Filter.process_image a bit"

This reverts commit b5586102ed5ae4bb3f56c33f2dc9de56628fdd2b.

torchbox/wagtail,wagtail/wagtail,stevenewey/wagtail,kaedroho/wagtail,mephizzle/wagtail,kaedroho/wagtail,tangentlabs/wagtail,takeshineshiro/wagtail,iansprice/wagtail,bjesus/wagtail,Toshakins/wagtail,chrxr/wagtail,mayapurmedia/wagtail,tangentlabs/wagtail,jnns/wagtail,chimeno/wagtail,Klaudit/wagtail,willcodefortea/wagtail,takeflight/wagtail,bjesus/wagtail,taedori81/wagtail,nilnvoid/wagtail,wagtail/wagtail,timorieber/wagtail,chimeno/wagtail,hamsterbacke23/wagtail,FlipperPA/wagtail,jorge-marques/wagtail,rsalmaso/wagtail,tangentlabs/wagtail,iho/wagtail,wagtail/wagtail,nealtodd/wagtail,torchbox/wagtail,benjaoming/wagtail,Toshakins/wagtail,mixxorz/wagtail,mephizzle/wagtail,quru/wagtail,Klaudit/wagtail,mjec/wagtail,gogobook/wagtail,taedori81/wagtail,torchbox/wagtail,dresiu/wagtail,hamsterbacke23/wagtail,nilnvoid/wagtail,thenewguy/wagtail,Pennebaker/wagtail,stevenewey/wagtail,kaedroho/wagtail,timorieber/wagtail,KimGlazebrook/wagtail-experiment,janusnic/wagtail,gogobook/wagtail,zerolab/wagtail,nilnvoid/wagtail,chrxr/wagtail,rjsproxy/wagtail,FlipperPA/wagtail,gasman/wagtail,davecranwell/wagtail,marctc/wagtail,iho/wagtail,chimeno/wagtail,JoshBarr/wagtail,thenewguy/wagtail,100Shapes/wagtail,davecranwell/wagtail,jordij/wagtail,jordij/wagtail,benemery/wagtail,serzans/wagtail,mjec/wagtail,takeflight/wagtail,marctc/wagtail,takeflight/wagtail,nutztherookie/wagtail,benemery/wagtail,Tivix/wagtail,dresiu/wagtail,nrsimha/wagtail,wagtail/wagtail,benemery/wagtail,mixxorz/wagtail,mephizzle/wagtail,takeflight/wagtail,Pennebaker/wagtail,jorge-marques/wagtail,gasman/wagtail,rv816/wagtail,jnns/wagtail,FlipperPA/wagtail,takeshineshiro/wagtail,nimasmi/wagtail,hanpama/wagtail,wagtail/wagtail,nimasmi/wagtail,mephizzle/wagtail,rv816/wagtail,hamsterbacke23/wagtail,JoshBarr/wagtail,jorge-marques/wagtail,nrsimha/wagtail,rsalmaso/wagtail,stevenewey/wagtail,jorge-marques/wagtail,timorieber/wagtail,WQuanfeng/wagtail,hanpama/wagtail,gasman/wagtail,darith27/wagtail,benjaoming/wagtail,iansprice/wagtail,benjaoming/wagtail,rv816/wagtail,bjesus/wagtail,kaedroho/wagtail,jordij/wagtail,kurtrwall/wagtail,chimeno/wagtail,darith27/wagtail,timorieber/wagtail,rsalmaso/wagtail,mikedingjan/wagtail,Pennebaker/wagtail,100Shapes/wagtail,gasman/wagtail,marctc/wagtail,benemery/wagtail,stevenewey/wagtail,kurtrwall/wagtail,serzans/wagtail,thenewguy/wagtail,m-sanders/wagtail,serzans/wagtail,thenewguy/wagtail,nrsimha/wagtail,KimGlazebrook/wagtail-experiment,serzans/wagtail,janusnic/wagtail,kurtw/wagtail,janusnic/wagtail,marctc/wagtail,mayapurmedia/wagtail,inonit/wagtail,rsalmaso/wagtail,dresiu/wagtail,zerolab/wagtail,willcodefortea/wagtail,iho/wagtail,Klaudit/wagtail,mjec/wagtail,inonit/wagtail,Tivix/wagtail,tangentlabs/wagtail,iho/wagtail,WQuanfeng/wagtail,lojack/wagtail,kurtw/wagtail,darith27/wagtail,KimGlazebrook/wagtail-experiment,kurtw/wagtail,nealtodd/wagtail,mikedingjan/wagtail,Klaudit/wagtail,bjesus/wagtail,takeshineshiro/wagtail,mjec/wagtail,iansprice/wagtail,rjsproxy/wagtail,Toshakins/wagtail,rjsproxy/wagtail,nealtodd/wagtail,jorge-marques/wagtail,dresiu/wagtail,gasman/wagtail,chimeno/wagtail,benjaoming/wagtail,mixxorz/wagtail,inonit/wagtail,zerolab/wagtail,JoshBarr/wagtail,mikedingjan/wagtail,jnns/wagtail,gogobook/wagtail,FlipperPA/wagtail,Pennebaker/wagtail,rjsproxy/wagtail,m-sanders/wagtail,nutztherookie/wagtail,taedori81/wagtail,takeshineshiro/wagtail,nrsimha/wagtail,quru/wagtail,mixxorz/wagtail,taedori81/wagtail,JoshBarr/wagtail,nimasmi/wagtail,jordij/wagtail,helenwarren/pied-wagtail,kurtw/wagtail,helenwarren/pied-wagtail,hamsterbacke23/wagtail,willcodefortea/wagtail,100Shapes/wagtail,iansprice/wagtail,WQuanfeng/wagtail,torchbox/wagtail,mixxorz/wagtail,kurtrwall/wagtail,nilnvoid/wagtail,hanpama/wagtail,quru/wagtail,chrxr/wagtail,KimGlazebrook/wagtail-experiment,janusnic/wagtail,kaedroho/wagtail,zerolab/wagtail,rsalmaso/wagtail,jnns/wagtail,m-sanders/wagtail,mikedingjan/wagtail,quru/wagtail,Toshakins/wagtail,zerolab/wagtail,dresiu/wagtail,nealtodd/wagtail,thenewguy/wagtail,helenwarren/pied-wagtail,inonit/wagtail,nutztherookie/wagtail,chrxr/wagtail,mayapurmedia/wagtail,kurtrwall/wagtail,m-sanders/wagtail,darith27/wagtail,davecranwell/wagtail,taedori81/wagtail,WQuanfeng/wagtail,lojack/wagtail,mayapurmedia/wagtail,rv816/wagtail,nimasmi/wagtail,gogobook/wagtail,hanpama/wagtail,lojack/wagtail,Tivix/wagtail,Tivix/wagtail,nutztherookie/wagtail,willcodefortea/wagtail,davecranwell/wagtail