added cloning reference
added test reference for decolor
added npr reference
fix reference with non compresed png
update reference after bugfix
change reference due to 64->32bits fix
fix references due to the introduction of separated filters
added cloning reference
added test reference for decolor
added npr reference
fix reference with non compresed png
update reference after bugfix
change reference due to 64->32bits fix
fix references due to the introduction of separated filters
Merge branch 'seamless-refactor' of github.com:abak/opencv_extra into seamless-refactor
Merge pull request #223 from abak:seamless-refactor