{"action":"opened","issue":{"url":"https://api.github.com/repos/pablofdezalc/akaze/issues/20","labels_url":"https://api.github.com/repos/pablofdezalc/akaze/issues/20/labels{/name}","comments_url":"https://api.github.com/repos/pablofdezalc/akaze/issues/20/comments","events_url":"https://api.github.com/repos/pablofdezalc/akaze/issues/20/events","html_url":"https://github.com/pablofdezalc/akaze/issues/20","id":114035751,"number":20,"title":"Question about discretization ","user":{"login":"Celebrandil","id":3597698,"avatar_url":"https://avatars.githubusercontent.com/u/3597698?v=3","gravatar_id":"","url":"https://api.github.com/users/Celebrandil","html_url":"https://github.com/Celebrandil","followers_url":"https://api.github.com/users/Celebrandil/followers","following_url":"https://api.github.com/users/Celebrandil/following{/other_user}","gists_url":"https://api.github.com/users/Celebrandil/gists{/gist_id}","starred_url":"https://api.github.com/users/Celebrandil/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Celebrandil/subscriptions","organizations_url":"https://api.github.com/users/Celebrandil/orgs","repos_url":"https://api.github.com/users/Celebrandil/repos","events_url":"https://api.github.com/users/Celebrandil/events{/privacy}","received_events_url":"https://api.github.com/users/Celebrandil/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-10-29T12:06:01Z","updated_at":"2015-10-29T12:06:01Z","closed_at":null,"body":"How is the discretization due to subsampling accounted for in the nlp steps? For each increasing octave derivates are approximated with increasing step lengths in terms of the original image, which should lead to more diffusion than expected, given that the diffusion steps seem not to be correspondingly adjusted for. It strikes one as odd that higher octaves need more diffusion steps. The exponential increase in scale and exponential decrease in image size should cancel each other out."}}