{"action":"opened","issue":{"url":"https://api.github.com/repos/JimBobSquarePants/ImageProcessor/issues/244","labels_url":"https://api.github.com/repos/JimBobSquarePants/ImageProcessor/issues/244/labels{/name}","comments_url":"https://api.github.com/repos/JimBobSquarePants/ImageProcessor/issues/244/comments","events_url":"https://api.github.com/repos/JimBobSquarePants/ImageProcessor/issues/244/events","html_url":"https://github.com/JimBobSquarePants/ImageProcessor/issues/244","id":113011108,"number":244,"title":"Down sizing JPG's, results in noise artefacts","user":{"login":"uniquelau","id":914735,"avatar_url":"https://avatars.githubusercontent.com/u/914735?v=3","gravatar_id":"","url":"https://api.github.com/users/uniquelau","html_url":"https://github.com/uniquelau","followers_url":"https://api.github.com/users/uniquelau/followers","following_url":"https://api.github.com/users/uniquelau/following{/other_user}","gists_url":"https://api.github.com/users/uniquelau/gists{/gist_id}","starred_url":"https://api.github.com/users/uniquelau/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/uniquelau/subscriptions","organizations_url":"https://api.github.com/users/uniquelau/orgs","repos_url":"https://api.github.com/users/uniquelau/repos","events_url":"https://api.github.com/users/uniquelau/events{/privacy}","received_events_url":"https://api.github.com/users/uniquelau/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-10-23T12:37:37Z","updated_at":"2015-10-23T12:37:37Z","closed_at":null,"body":"When down sizing images, black/grey gradients are noticeable distorted. This resulting in areas of 'noise' and reduced colour range.\r\n\r\nThe issue is really noticeable on black and white photography, much less so in colour photography.\r\n\r\nThe issue considerably more noticeable on Retina / High Pixel Density displays, and also 'professional' displays which are correctly calibrated for the black colour space. \r\n\r\ne.g. [Black Test Card to check display performance](http://www.prad.de/images/monitore/eizo_hd2442w/eizo_hd2442w_levels_schwarz.jpg)\r\n\r\n**Examples**\r\n\r\n[Source Image](http://www.dmbrepresents.com/media/4332/bkc-sept10-276.jpg)\r\n[Resized Image to 500px] (http://www.dmbrepresents.com/media/4332/bkc-sept10-276.jpg?width=500)\r\n\r\nI also tried removing excess energy in the black area of the image, as I though perhaps there was some sort of issue here, however this has no impact.\r\n\r\nIf the image is resized in Photoshop, the issue is not present, so I'm assuming it's related to how the image is resized inside ImageProcessor.\r\n\r\nAll the best! Laurence\r\n"}}