MAINT: asserts image 2D or 3D, proper clipping
MAINT: asserts image 2D or 3D, proper clipping

as well as DOC: clarify 2D/3D + rewrite notes for denoise_wavelet

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