add implementation of function
Merge branch 'master' into FilmGrain-implementation
add documentation
Merge branch 'master' into FilmGrain-implementation
add film grain implementation and sample
attempt to improve
new implementation
Merge branch 'master' into FilmGrain-implementation
new implementation
add test
add spaces
delete filmGrain.rst
attempt to improve
correct sample of FilmGrain
attempt to improve
add default value
Merge branch 'master' into FilmGrain-implementation
attempt to improve
merge 'master' to FilmGrain-implementation
attempt to improve