{"action":"closed","issue":{"url":"https://api.github.com/repos/Vidvox/hap-qt-codec/issues/29","repository_url":"https://api.github.com/repos/Vidvox/hap-qt-codec","labels_url":"https://api.github.com/repos/Vidvox/hap-qt-codec/issues/29/labels{/name}","comments_url":"https://api.github.com/repos/Vidvox/hap-qt-codec/issues/29/comments","events_url":"https://api.github.com/repos/Vidvox/hap-qt-codec/issues/29/events","html_url":"https://github.com/Vidvox/hap-qt-codec/issues/29","id":132492399,"number":29,"title":"HAPQ Color banding (looks better in HAP)","user":{"login":"tromerk","id":17144416,"avatar_url":"https://avatars.githubusercontent.com/u/17144416?v=3","gravatar_id":"","url":"https://api.github.com/users/tromerk","html_url":"https://github.com/tromerk","followers_url":"https://api.github.com/users/tromerk/followers","following_url":"https://api.github.com/users/tromerk/following{/other_user}","gists_url":"https://api.github.com/users/tromerk/gists{/gist_id}","starred_url":"https://api.github.com/users/tromerk/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tromerk/subscriptions","organizations_url":"https://api.github.com/users/tromerk/orgs","repos_url":"https://api.github.com/users/tromerk/repos","events_url":"https://api.github.com/users/tromerk/events{/privacy}","received_events_url":"https://api.github.com/users/tromerk/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2016-02-09T18:18:35Z","updated_at":"2017-01-19T19:22:32Z","closed_at":"2017-01-19T19:22:32Z","body":"I am comparing (for now just 1 file) in many encoder and including HAP.  My final outputs are used in Dataton Watchout (http://www.dataton.com/watchout) which with version 6.x includes HAP support.\n\nOn this one file I am testing, I see some color variations and some noticeable banding with HAPQ that actually looks BETTER with HAP.\nHere are some still frames from encode:\nOriginal File:\nhttps://dl.dropboxusercontent.com/u/20646203/Original%20%28QT%20Animation%29.png \n\nHAP:\nhttps://dl.dropboxusercontent.com/u/20646203/HAP.png\n\nHAP Q:\nhttps://dl.dropboxusercontent.com/u/20646203/HAPQ.png\n\nDifferences are subtle... best if you put on layers in Photoshop or something like that so you can toggle on/off to see differences.  Here is what I see:\nHAP:\n- overall color/contrast looks very very close to original\n- in upper left corner I see some color banding.  slight, but there.\n\nHAP Q:\n- overall color/contrast is off a bit from the original.  Less contrast and a bit less saturation I  would say\n- upper left corner banding is noticeably worse, and I would say unacceptable for my application.\n\nSo... What's my question?  Well - if these results were opposite, I think it would make a lot of sense, and I would just assume the larger file/better setting is getting better results.. but the fact that HAP Q looks worse than HAP has me asking... Why?  And can I better understand what kind of content HAP is 'good' at and 'not so good' at?\n\nThanks for listening :-)\n-kt\n"}}
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