bug: distribution argument to estimate_sigma no longer exists
bug: distribution argument to estimate_sigma no longer exists

rjeli/scikit-image,vighneshbirodkar/scikit-image,rjeli/scikit-image,paalge/scikit-image,rjeli/scikit-image,vighneshbirodkar/scikit-image,vighneshbirodkar/scikit-image,paalge/scikit-image,paalge/scikit-image