{"action":"opened","issue":{"number":64,"created_at":"2011-10-11T15:54:59Z","pull_request":{"diff_url":null,"patch_url":null,"html_url":null},"body":"(originally reported via email to Artem)\r\n\r\nim.blend doesn't take alpha-transparency into account properly when using an image with a transparent background. Each pixel is assumed to be either fully transparent or fully opaque, which leads to jagged outlines.\r\n\r\nThe attached blend.png shows a transparent layer containing circles blended onto a white background. Notice that the circles are fine when overlapping, but jagged where the layers have been blended.\r\n\r\nPatch follows.","comments":1,"title":"im.blend treats transparency on/off","updated_at":"2011-10-11T15:55:00Z","url":"https://api.github.com/repos/artemp/mapnik/issues/64","id":1877022,"assignee":null,"milestone":{"number":5,"created_at":"2011-10-11T15:50:21Z","due_on":null,"title":"0.5.1","creator":{"avatar_url":"https://secure.gravatar.com/avatar/941f68386168a8a6b60f2529a7830af7?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","url":"https://api.github.com/users/artemp","id":59056,"login":"artemp"},"url":"https://api.github.com/repos/artemp/mapnik/milestones/5","open_issues":1,"closed_issues":1,"description":"now available in debian backports","state":"open"},"closed_at":null,"user":{"avatar_url":"https://secure.gravatar.com/avatar/941f68386168a8a6b60f2529a7830af7?d=https://a248.e.akamai.net/assets.github.com%2Fimages%2Fgravatars%2Fgravatar-140.png","url":"https://api.github.com/users/artemp","id":59056,"login":"artemp"},"html_url":"https://github.com/artemp/mapnik/issues/64","labels":[{"name":"Core_Library","url":"https://api.github.com/repos/artemp/mapnik/labels/Core_Library","color":"FFFFFF"}],"state":"open"},"legacy":{"number":64,"action":"opened","issue":1877022}}