Hotfix to gaussian pyramid
Hotfix to gaussian pyramid

- The previous code was producing masks with incorrect shape, this hotfix solves the problem.

mozata/menpo,mozata/menpo,menpo/menpo,yuxiang-zhou/menpo,yuxiang-zhou/menpo,mozata/menpo,mozata/menpo,yuxiang-zhou/menpo,patricksnape/menpo,menpo/menpo,menpo/menpo,grigorisg9gr/menpo,grigorisg9gr/menpo,patricksnape/menpo,grigorisg9gr/menpo,patricksnape/menpo