vigranumpytest: fixed crack edge-related tests
vigranumpytest: fixed crack edge-related tests

dstoe/vigra,hmeine/vigra,timoMa/vigra,timoMa/vigra,mmuellner/vigra,kod3r/vigra,stuarteberg/vigra,martinsch/vigra,stuarteberg/vigra,cha007/vigra,dagophil/vigra,funkey/vigra,hmeine/vigra,ThomasWalter/vigra,ThomasWalter/vigra,DaveRichmond-/vigra,ThomasWalter/vigra,cbecker/vigra,cha007/vigra,dagophil/vigra,hmeine/vigra,hmeine/vigra,kod3r/vigra,kod3r/vigra,stuarteberg/vigra,kod3r/vigra,xiwei-zhang/vigra,timoMa/vigra,dstoe/vigra,martinsch/vigra,mmuellner/vigra,dstoe/vigra,cha007/vigra,capturePointer/vigra,funkey/vigra,xiwei-zhang/vigra,dagophil/vigra,psteinb/vigra,capturePointer/vigra,capturePointer/vigra,kod3r/vigra,dagophil/vigra,DaveRichmond-/vigra,cha007/vigra,cbecker/vigra,mmuellner/vigra,cbecker/vigra,cbecker/vigra,psteinb/vigra,cha007/vigra,martinsch/vigra,hmeine/vigra,xiwei-zhang/vigra,hmeine/vigra,dagophil/vigra,capturePointer/vigra,mmuellner/vigra,dagophil/vigra,capturePointer/vigra,stuarteberg/vigra,dstoe/vigra,capturePointer/vigra,psteinb/vigra,psteinb/vigra,DaveRichmond-/vigra,xiwei-zhang/vigra,dstoe/vigra,capturePointer/vigra,DaveRichmond-/vigra,mmuellner/vigra,timoMa/vigra,timoMa/vigra,martinsch/vigra,hmeine/vigra,timoMa/vigra,psteinb/vigra,funkey/vigra,funkey/vigra,dstoe/vigra,cbecker/vigra,martinsch/vigra,dstoe/vigra,kod3r/vigra,ThomasWalter/vigra,ThomasWalter/vigra,funkey/vigra,cha007/vigra,psteinb/vigra,mmuellner/vigra,ThomasWalter/vigra,ThomasWalter/vigra,psteinb/vigra,xiwei-zhang/vigra,DaveRichmond-/vigra,timoMa/vigra,funkey/vigra,DaveRichmond-/vigra,stuarteberg/vigra,stuarteberg/vigra,mmuellner/vigra,xiwei-zhang/vigra,funkey/vigra,cha007/vigra,xiwei-zhang/vigra,cbecker/vigra,dagophil/vigra,DaveRichmond-/vigra,stuarteberg/vigra,martinsch/vigra,kod3r/vigra